A sewage treatment anti-blocking rotary cleaner

Abstract

The present application relates to sewage treatment technical field, specifically to a kind of sewage treatment's anti-clogging rotary cleaner, including frame, horizontal grid, cleaning mechanism, adjusting mechanism;Frame is fixed with the vertical grid of length direction along the extension in up-down direction;Two horizontal grids are V-shaped with opening facing water flow;Horizontal grid one end and frame fixed connection, the other end and the side wall of the water inlet of sewage pool fixed connection.According to the width of the water inlet of sewage pool, different width horizontal grid is customized, and horizontal grid and frame are fixedly connected, adapt to different width water inlet, increase the working range of cleaning, have wide application range, when sewage flows to sewage pool, horizontal grid guides the floating object on the both sides of water inlet to gather at vertical grid, improve the efficiency of cleaning mechanism cleaning.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically to an anti-clogging rotary cleaning machine for wastewater treatment. Background Technology

[0002] Rotary screen cleaners are commonly used in wastewater treatment. These cleaners are typically installed at the inlet of wastewater tanks in wastewater treatment plants and are generally equipped with screens (such as coarse, fine, and ultra-fine screens). Their core function is to intercept large floating objects (such as branches, weeds, household waste, and plastic products) and suspended solids in the water flow, preventing these debris from entering subsequent treatment processes or core equipment, thus achieving initial cleaning of suspended solids in the wastewater.

[0003] In existing technologies, such as the Chinese patent with publication number CN216549667U entitled "A Rotary Trash Canister," the disclosed technical solution describes an interception mechanism comprising a grid body with transmission chains on both sides. These transmission chains, via connecting plates, drive the cleaning rakes to move upwards on the water-facing side of the grid body, raking floating debris off the water surface. However, in wastewater treatment, when the inlet channel is wide, a wide-aperture integrated rotary trash canister is typically used. This requires additional support columns in the channel for auxiliary support, which affects the flow rate of wastewater entering the inlet and thus the effectiveness of wastewater treatment. Summary of the Invention

[0004] This invention provides an anti-clogging rotary cleaning machine for sewage treatment to solve the above-mentioned problems.

[0005] The present invention provides an anti-clogging rotary screen cleaner for sewage treatment, which adopts the following technical solution: an anti-clogging rotary screen cleaner for sewage treatment includes a frame, a horizontal bar, a cleaning mechanism, and an adjusting mechanism.

[0006] The frame is rectangular and fixed at the top and bottom inside the inlet of the sewage tank; the frame has multiple vertical bars spaced at intervals along a horizontal direction perpendicular to the water flow; the multiple vertical bars form a vertical grid; the vertical grid and the frame are fixedly connected.

[0007] Two horizontal screens are provided, symmetrically distributed on the water-facing side of the vertical screen about the center line of the inlet channel; the horizontal screens include multiple horizontal bars; the horizontal bars are inclined relative to the water flow direction, and the horizontal bars of the two horizontal screens are V-shaped with openings facing the water flow; one end of the horizontal bar is fixedly connected to the frame; the other end is fixedly connected to the side wall of the inlet of the sewage tank.

[0008] The cleaning mechanism removes floating debris trapped on the vertical screens after sewage passes through them. Horizontal screens of varying widths are custom-designed to fit different inlet widths in sewage tanks. These horizontal screens are fixedly connected to the frame, accommodating inlets of varying widths. This avoids the need for additional support columns in the flow channel when the inlet is wide, which would affect the flow rate of sewage entering the tank, thus ensuring a wide cleaning range and broad applicability. As sewage flows into the tank, the horizontal screens guide floating debris from both sides of the inlet towards the vertical screens, improving the cleaning efficiency. The cleaning mechanism includes a drive shaft, drive chain, drive motor, and cleaning rake. Two drive shafts are located at the top and bottom of the vertical screens; the drive shaft axis is horizontal and perpendicular to the water flow direction; the drive shafts are rotatably mounted on the frame; and sprockets are fixed at both ends of the drive shafts. Two drive chains are symmetrically distributed at both ends of the drive shafts; the drive chains are located at the junction of the vertical and horizontal screens; the drive chains are fitted onto the vertical screens and mesh with the sprockets for transmission. The drive motor is fixed to the frame and fixedly connected to the drive shaft above. The cleaning rake includes a rake bar; the axis of the rake bar is parallel to the drive shaft, and both ends are fixedly connected to the nearby drive chain; rake teeth are fixed on the rake bar. The adjustment mechanism is located on the horizontal screen; when the amount of floating debris at the vertical screen increases, the adjustment mechanism adjusts and reduces the speed of the floating debris flowing from the horizontal screen to the vertical screen, so that the floating debris flows evenly to the vertical screen and avoids the accumulation and blockage of floating debris at the vertical screen. The adjustment mechanism includes a rotating shaft and a connecting rod. The axis of the rotating shaft is vertically positioned on the back side of the horizontal bar; both ends of the rotating shaft are rotatably mounted on the horizontal bar via bases; a torsion spring connects the rotating shaft and the base; multiple connecting rods are spaced vertically; the connecting rods are horizontally positioned and parallel to the horizontal bar; the middle of the connecting rod is fixedly connected to the rotating shaft; a sensing rod is located at the end of the connecting rod near the vertical bar; the sensing rod is horizontally positioned and perpendicular to the water flow direction; one end of the sensing rod is fixedly connected to the connecting rod, and the other end passes through the horizontal bar, crosses the boundary between the horizontal and vertical bars, and extends to the front side of the vertical bar; an adjusting rod is located at the end of the connecting rod away from the vertical bar; the adjusting rod is horizontally positioned and perpendicular to the horizontal bar; the adjusting rod is located between the connecting rod and the horizontal bar; the adjusting rod and the connecting rod are fixedly connected.

[0009] As floating debris from both sides of the horizontal bar guides the water inlet towards the vertical bar, the debris slides along the horizontal bar towards the vertical bar. When the debris reaches the junction of the horizontal and vertical bars, it is guided by the sensor rod to cross the junction and reach the vertical bar, preventing debris from accumulating at the junction and avoiding cleaning dead zones. When the amount of floating debris at the vertical bar increases, it cannot slide off the sensor rod in time and accumulates on it, increasing the pressure on the sensor rod and pushing it closer to the vertical bar. The sensor rod pushes the connecting rod, causing it to rotate around the axis. This causes the end of the connecting rod away from the vertical bar to move the adjusting rod closer to the horizontal bar. The adjusting rods on multiple connecting rods pass through the gaps in the horizontal bar to the water-facing side of the horizontal bar, forming an interception barrier. This intercepts some of the floating debris sliding on the horizontal bar, reducing the speed of the floating debris flowing from the horizontal bar towards the vertical bar, allowing the floating debris to flow evenly towards the vertical bar, preventing debris from accumulating and clogging at the vertical bar, reducing the load on the cleaning mechanism, and reducing the probability of clogging at the vertical bar.

[0010] Furthermore, a wastewater treatment anti-clogging rotary screen cleaner also includes an auxiliary mechanism; the auxiliary mechanism uses water flow impact to provide auxiliary rotational power for the drive shaft, and when the floating objects at the vertical screen increase, it increases the auxiliary rotational power provided to the drive shaft to reduce the load on the drive motor.

[0011] Furthermore, the auxiliary mechanism includes an auxiliary shaft, a first waterwheel, a second waterwheel, and a transmission assembly; the auxiliary shaft and the lower drive shaft are coaxial; the auxiliary shaft is located on the backwater side of the horizontal bar; one end of the auxiliary shaft is slidably connected to the lower drive shaft; the other end is rotatably engaged with the horizontal bar via a connecting plate.

[0012] The first waterwheel includes two first rings distributed along the axis of the auxiliary shaft; the first rings are coaxially fitted on the auxiliary shaft; the first ring near the vertical grid is rotatably engaged with the frame; the first ring is slidably engaged with the auxiliary shaft; a plurality of first blades are distributed in a ring between the two first rings; the length direction of the first blades extends along the axial direction of the auxiliary shaft; the two ends of the first blades are fixedly connected to the corresponding first rings.

[0013] The second waterwheel includes two second rings distributed along the axis of the auxiliary shaft; the second rings are coaxially fitted onto the auxiliary shaft; the second ring closer to the vertical screen is located between the two first rings, and the second ring closer to the vertical screen slides into contact with the first blade; a spring connects the second ring farther from the vertical screen and the connecting plate; the second rings are fixedly connected to the auxiliary shaft; multiple second blades are distributed in a ring between the two second rings; the length direction of the second blades extends along the axial direction of the auxiliary shaft; both ends of the second blades are fixedly connected to the corresponding second rings; the second blades abut and slide into contact with the first blades; the second blades slide into contact with the first ring farther from the vertical screen; after the sewage is filtered by the horizontal screen, it impacts the first and second blades, driving the first and second waterwheels to rotate, thereby providing auxiliary rotational power for the drive shaft.

[0014] The transmission assembly is used to drive the auxiliary shaft to move the second water wheel away from the drive shaft when there are more floating objects at the vertical grid, thereby reducing the overlap between the first and second blades and increasing the total area of ​​water flow impacting the first and second blades.

[0015] Furthermore, the transmission assembly includes a hinge shaft and a hinge block; the hinge shaft is located at one end of the connecting rod near the vertical screen; the hinge shaft is vertically positioned; the hinge shaft and the connecting rod are fixedly connected; the hinge block and the auxiliary shaft are fixedly connected; a hinge rod is provided between the hinge block and the hinge shaft; one end of the hinge rod is hinged to the hinge shaft, and the other end is hinged to the hinge block. When the amount of floating debris at the vertical screen increases, the connecting rod rotates around the pivot, and the connecting rod drives the hinge rod through the hinge shaft to push the hinge block away from the drive shaft. The hinge block then drives the auxiliary shaft away from the drive shaft, and the auxiliary shaft drives the second water turbine away from the drive shaft, reducing the overlap between the first and second blades, increasing the total impact area of ​​the water flow on the first and second blades, and increasing the auxiliary rotational force provided to the drive shaft to reduce the load on the drive motor.

[0016] Furthermore, an arc-shaped baffle is provided above the first and second water turbines; the baffle is fixedly connected to the frame. The baffle is used to prevent the water flow from impacting the area above the first and second water turbines.

[0017] Furthermore, a protective grille is provided on the side of the lower drive shaft away from the vertical grille; the protective grille is fixed to the frame. The protective grille is used to protect the lower drive shaft.

[0018] Furthermore, an arc-shaped separation plate is fixed to the upper end of the vertical grid; the surface of the separation plate is flat, which facilitates the separation and collection of floating debris.

[0019] The beneficial effects of this invention are: 1. Horizontal grilles of different widths are customized according to the width of the sewage tank inlet, and the horizontal grilles and frames are fixedly connected to adapt to inlets of different widths. This avoids the need to set up additional support columns in the flow channel when the inlet flow channel is wide, which would affect the flow rate of sewage entering the inlet. This ensures the cleaning work range and has a wide range of applications. When sewage flows into the sewage tank, the horizontal grilles guide the floating objects on both sides of the inlet to gather at the vertical grilles, improving the cleaning efficiency of the cleaning mechanism.

[0020] 2. When the amount of floating objects at the vertical grid increases, the adjustment mechanism reduces the speed of the floating objects flowing from the horizontal grid to the vertical grid, so that the floating objects flow evenly to the vertical grid and avoid the floating objects accumulating and blocking at the vertical grid.

[0021] 3. The auxiliary mechanism uses the impact of water flow to provide auxiliary rotational power for the drive shaft. When the number of floating objects at the vertical grid increases, the auxiliary mechanism increases the auxiliary rotational power provided to the drive shaft to reduce the load on the drive motor.

[0022] 4. As the floating objects on both sides of the horizontal bar guide the water inlet to gather towards the vertical bar, the floating objects slide along the horizontal bar towards the vertical bar. When the floating objects slide to the junction of the horizontal and vertical bars, they are guided by the sensor rod to cross the junction of the horizontal and vertical bars and reach the vertical bar, thus avoiding the floating objects from lingering at the junction of the horizontal and vertical bars and avoiding cleaning dead corners.

[0023] 5. When the amount of floating debris increases at the vertical screen, the debris cannot slide off the sensing rod in time and accumulates on the rod, increasing the pressure on the rod and pushing it closer to the vertical screen. The sensing rod then pushes the connecting rod, causing it to rotate around the axis. This causes the end of the connecting rod away from the vertical screen to move the adjusting rod closer to the horizontal screen. The adjusting rods on multiple connecting rods pass through the gaps in the horizontal screen to the water-facing side of the horizontal screen, forming an interception barrier. This intercepts some of the floating debris sliding on the horizontal screen, reducing the speed of the floating debris flowing from the horizontal screen to the vertical screen, and ensuring that the floating debris flows evenly towards the vertical screen. This prevents the floating debris from accumulating and clogging at the vertical screen, reducing the load on the cleaning mechanism and lowering the probability of blockage at the vertical screen. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of an embodiment of an anti-clogging rotary cleaning machine for wastewater treatment according to the present invention;

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 This is a side view of an embodiment of an anti-clogging rotary cleaning machine for wastewater treatment according to the present invention;

[0028] Figure 4 for Figure 3 Sectional view at point BB;

[0029] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0030] Figure 6 This is a top view of an embodiment of an anti-clogging rotary cleaning machine for wastewater treatment according to the present invention;

[0031] Figure 7 for Figure 6 Enlarged view of point D in the middle;

[0032] Figure 8 This is a schematic diagram of the adjustment mechanism of an embodiment of the anti-clogging rotary cleaning machine for sewage treatment according to the present invention;

[0033] Figure 9 This is a schematic diagram of the first and second water impellers of an embodiment of an anti-clogging rotary cleaning machine for wastewater treatment according to the present invention;

[0034] Figure 10 This is a schematic diagram of the first water impeller of an embodiment of an anti-clogging rotary cleaning machine for sewage treatment according to the present invention.

[0035] In the diagram: 100, frame; 110, baffle; 200, vertical grille; 210, protective grille; 220, separation plate; 400, horizontal grille; 510, drive shaft; 520, drive chain; 530, cleaning rake; 610, rotating shaft; 620, connecting rod; 630, sensing rod; 640, adjusting rod; 710, auxiliary shaft; 720, first waterwheel; 730, second waterwheel; 740, hinge shaft; 750, hinge block; 760, hinge rod. Detailed Implementation

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] An embodiment of the present invention, a non-clogging rotary cleaning machine for wastewater treatment, is as follows: Figures 1 to 10 As shown, it includes a frame 100, a horizontal grille 400, a cleaning mechanism, an adjustment mechanism, and an auxiliary mechanism.

[0038] The frame 100 is rectangular and fixedly positioned vertically within the inlet of the sewage tank. Multiple vertical bars are spaced apart along a horizontal direction perpendicular to the water flow within the frame 100. These vertical bars form a vertical grid 200, which is fixedly connected to the frame 100. An arc-shaped separation plate 220 is fixed to the upper end of the vertical grid 200; the surface of the separation plate 220 is flat, facilitating the separation and collection of floating debris. Figure 1 , Figure 4 , Figure 6 As shown in the figure, arrow f indicates the direction of water flow.

[0039] Two horizontal grilles 400 are provided, symmetrically distributed on the water-facing side of the vertical grille 200 about the center line of the inlet channel; the horizontal grille 400 includes multiple horizontal bars; the horizontal bars are inclined relative to the water flow direction, and the horizontal bars of the two horizontal grilles 400 are V-shaped with openings facing the water flow; one end of the horizontal bar is fixedly connected to the frame 100; the other end is fixedly connected to the side wall of the inlet of the sewage tank.

[0040] The cleaning mechanism is used to remove floating debris that remains on the vertical screen 200 after the sewage passes through it. Horizontal screens 400 of different widths are customized according to the width of the sewage tank's inlet, and the horizontal screens 400 and frame 100 are fixedly connected to each other. This adapts to inlets of different widths, avoiding the need for additional support columns in the flow channel when the inlet is wide, which would affect the flow rate of the sewage entering the inlet. This ensures the cleaning work area and has a wide range of applications. When sewage flows into the sewage tank, the horizontal screens 400 guide the floating debris on both sides of the inlet to gather at the vertical screen 200, improving the cleaning efficiency of the cleaning mechanism.

[0041] The cleaning mechanism includes a drive shaft 510, a drive chain 520, a drive motor, and a cleaning rake 530. Two drive shafts 510 are provided, distributed at the upper and lower ends of the vertical screen 200; the axis of the drive shaft 510 is horizontally positioned and perpendicular to the water flow direction; the drive shaft 510 is rotatably mounted on the frame 100; sprockets are fixed at both ends of the drive shaft 510. Two drive chains 520 are provided, symmetrically distributed at both ends of the drive shaft 510; the drive chains 520 are located at the junction of the vertical screen 200 and the horizontal screen 400; the drive chains 520 are sleeved on the vertical screen 200 and mesh with the sprockets for transmission. The drive motor is fixed to the frame 100 and is fixedly connected to the upper drive shaft 510. The cleaning rake 530 includes a rake bar; the axis of the rake bar is parallel to the drive shaft 510, and both ends are fixedly connected to the adjacent drive chain 520; rake teeth are fixed on the rake bar. A protective grille 210 is provided on the side of the lower drive shaft 510 away from the vertical grille 200; the protective grille 210 is fixed to the frame 100. The protective grille 210 is used to protect the lower drive shaft 510.

[0042] An adjustment mechanism is located on the horizontal screen 400. When the amount of floating debris increases at the vertical screen 200, the adjustment mechanism reduces the speed of the floating debris flowing from the horizontal screen 400 towards the vertical screen 200, ensuring that the floating debris flows evenly towards the vertical screen 200 and preventing it from accumulating and clogging. The adjustment mechanism includes a rotating shaft 610 and connecting rods 620. The axis of the rotating shaft 610 is vertically positioned on the back side of the horizontal screen 400. Both ends of the rotating shaft 610 are rotatably mounted on the horizontal screen 400 via bases. A torsion spring connects the rotating shaft 610 and the base. Multiple connecting rods 620 are spaced vertically. The connecting rods 620 are horizontally positioned and parallel to the horizontal screen 400. The middle of the connecting rod 620 is fixedly connected to the rotating shaft 610. A sensing rod 630 is located at the end of the connecting rod 620 closest to the vertical screen 200. The sensing rod 630 is horizontally positioned and parallel to the water surface. The flow direction is vertical; one end of the sensing rod 630 is fixedly connected to the connecting rod 620, and the other end passes through the horizontal grid 400 and crosses the junction of the horizontal grid 400 and the vertical grid 200, extending to the water-facing side of the vertical grid 200; an adjusting rod 640 is provided at the end of the connecting rod 620 away from the vertical grid 200; the adjusting rod 640 is set horizontally and perpendicular to the horizontal grid 400; the adjusting rod 640 is located between the connecting rod 620 and the horizontal grid 400; the adjusting rod 640 and the connecting rod 620 are fixedly connected.

[0043] As the horizontal screen 400 guides the floating objects on both sides of the inlet to gather at the vertical screen 200, the floating objects slide along the horizontal screen 400 towards the vertical screen 200. When the floating objects slide to the junction of the horizontal screen 400 and the vertical screen 200, they are guided by the sensing rod 630 to cross the junction of the horizontal screen 400 and the vertical screen 200 and reach the vertical screen 200, thus avoiding the floating objects from lingering at the junction of the horizontal screen 400 and the vertical screen 200 and avoiding cleaning dead corners. When the amount of floating debris increases at the vertical screen 200, the debris cannot slide off the sensing rod 630 in time and accumulates on the sensing rod 630, increasing the pressure on the sensing rod 630. This pushes the sensing rod 630 closer to the vertical screen 200. The sensing rod 630 then pushes the connecting rod 620, causing the connecting rod 620 to rotate around the rotating shaft 610. This causes the end of the connecting rod 620 away from the vertical screen 200 to drive the adjusting rod 640 closer to the horizontal screen 400. The adjusting rods 640 on the multiple connecting rods 620 pass through the gaps in the horizontal screen 400 to the water-facing side of the horizontal screen 400, forming an interception barrier. This intercepts some of the floating debris sliding on the horizontal screen 400, reduces the speed of the floating debris flowing from the horizontal screen 400 towards the vertical screen 200, and makes the floating debris flow evenly towards the vertical screen 200, preventing the floating debris from accumulating and clogging at the vertical screen 200, reducing the load on the cleaning mechanism, and reducing the probability of clogging at the vertical screen 200.

[0044] The auxiliary mechanism utilizes the impact of water flow to provide auxiliary rotational force for the drive shaft 510. When the amount of floating debris at the vertical screen 200 increases, the auxiliary rotational force provided to the drive shaft 510 increases, thereby reducing the load on the drive motor. The auxiliary mechanism includes an auxiliary shaft 710, a first waterwheel 720, a second waterwheel 730, and a transmission assembly. The auxiliary shaft 710 and the lower drive shaft 510 are coaxial. The auxiliary shaft 710 is located on the backwater side of the horizontal screen 400. One end of the auxiliary shaft 710 is slidably inserted into the lower drive shaft 510; the other end is rotatably engaged with the horizontal screen 400 via a connecting plate.

[0045] The first water turbine 720 includes two first rings distributed along the axis of the auxiliary shaft 710; the first rings are coaxially fitted on the auxiliary shaft 710; the first ring near the vertical grid 200 is rotatably engaged with the frame 100; the first rings are slidably engaged with the auxiliary shaft 710; a plurality of first blades are distributed in a ring between the two first rings; the length direction of the first blades extends along the axial direction of the auxiliary shaft 710; the two ends of the first blades are fixedly connected to the corresponding first rings.

[0046] The second waterwheel 730 includes two second rings distributed along the axis of the auxiliary shaft 710; the second rings are coaxially fitted onto the auxiliary shaft 710; the second ring closer to the vertical screen 200 is located between the two first rings, and the second ring closer to the vertical screen 200 is slidably engaged with the first blade; a spring is connected between the second ring farther from the vertical screen 200 and the connecting plate; the second rings are fixedly connected to the auxiliary shaft 710; a plurality of second blades are annularly distributed between the two second rings; the length direction of the second blades extends along the axial direction of the auxiliary shaft 710; both ends of the second blades are fixedly connected to the corresponding second rings; the second blades abut and slidably engage with the first blades; the second blades are slidably engaged with the first ring farther from the vertical screen 200; after the sewage is filtered by the horizontal screen 400, it impacts the first and second blades, driving the first waterwheel 720 and the second waterwheel 730 to rotate, thereby providing auxiliary rotational power for the drive shaft 510. An arc-shaped baffle 110 is provided above the first waterwheel 720 and the second waterwheel 730; the baffle 110 is fixedly connected to the frame 100. The baffle 110 is used to prevent water flow from impacting the top of the first water turbine 720 and the second water turbine 730.

[0047] The transmission assembly is used to drive the auxiliary shaft 710 to move the second waterwheel 730 away from the drive shaft 510 when the number of floating objects at the vertical screen 200 increases, thereby reducing the overlap between the first and second blades and increasing the total impact area of ​​the water flow on the first and second blades. The transmission assembly includes a hinge shaft 740 and a hinge block 750; the hinge shaft 740 is located at one end of the connecting rod 620 near the vertical screen 200; the hinge shaft 740 is vertically arranged; the hinge shaft 740 and the connecting rod 620 are fixedly connected; the hinge block 750 and the auxiliary shaft 710 are fixedly connected; a hinge rod 760 is provided between the hinge block 750 and the hinge shaft 740; one end of the hinge rod 760 is hinged to the hinge shaft 740, and the other end is hinged to the hinge block 750. When the number of floating objects at the vertical grid 200 increases, the connecting rod 620 rotates around the rotating shaft 610. The connecting rod 620 drives the hinge rod 760 through the hinge shaft 740 to push the hinge block 750 away from the drive shaft 510. The hinge block 750 then drives the auxiliary shaft 710 away from the drive shaft 510. The auxiliary shaft 710 drives the second water wheel 730 away from the drive shaft 510, reducing the overlap of the first and second blades, increasing the total impact area of ​​the water flow on the first and second blades, and increasing the auxiliary rotational force provided to the drive shaft 510 to reduce the load on the drive motor.

[0048] Based on the above embodiments, the operating principle and process of this invention are as follows: In use, horizontal grilles 400 of varying widths are customized according to the width of the sewage inlet of the wastewater tank. The horizontal grilles 400 and frame 100 are then fixedly connected to accommodate inlets of different widths. This avoids the need for additional support columns in the flow channel when the inlet channel is wide, which would affect the flow rate of the sewage entering the inlet, thus ensuring a wide cleaning range and broad applicability. Simultaneously, the drive shaft 510 drives the drive chain 520 to rotate. The drive chain 520 drives the cleaning rake 530 to rise from the water-facing side of the vertical grille 200, rakeing up the floating debris retained on the vertical grille 200. When sewage flows into the wastewater tank, the horizontal grilles 400 guide the floating debris on both sides of the inlet to gather at the vertical grille 200, improving the cleaning efficiency of the cleaning mechanism.

[0049] As the horizontal screen 400 guides the floating objects on both sides of the inlet to gather at the vertical screen 200, the floating objects slide along the horizontal screen 400 towards the vertical screen 200. When the floating objects slide to the junction of the horizontal screen 400 and the vertical screen 200, they are guided by the sensing rod 630 to cross the junction of the horizontal screen 400 and the vertical screen 200 and reach the vertical screen 200, thus avoiding the floating objects from lingering at the junction of the horizontal screen 400 and the vertical screen 200 and avoiding cleaning dead corners. When the amount of floating debris increases at the vertical screen 200, the debris cannot slide off the sensing rod 630 in time and accumulates on the sensing rod 630, increasing the pressure on the sensing rod 630. This pushes the sensing rod 630 closer to the vertical screen 200. The sensing rod 630 then pushes the connecting rod 620, causing the connecting rod 620 to rotate around the rotating shaft 610. This causes the end of the connecting rod 620 away from the vertical screen 200 to drive the adjusting rod 640 closer to the horizontal screen 400. The adjusting rods 640 on the multiple connecting rods 620 pass through the gaps in the horizontal screen 400 to the water-facing side of the horizontal screen 400, forming an interception barrier. This intercepts some of the floating debris sliding on the horizontal screen 400, reduces the speed of the floating debris flowing from the horizontal screen 400 towards the vertical screen 200, and makes the floating debris flow evenly towards the vertical screen 200, preventing the floating debris from accumulating and clogging at the vertical screen 200, reducing the load on the cleaning mechanism, and reducing the probability of clogging at the vertical screen 200.

[0050] After the sewage is filtered by the horizontal screen 400, it impacts the first and second blades, driving the first water wheel 720 and the second water wheel 730 to rotate, thereby providing auxiliary rotational power for the drive shaft 510. When the floating objects at the vertical screen 200 increase, the connecting rod 620 rotates around the rotating shaft 610. The connecting rod 620 drives the hinge rod 760 through the hinge shaft 740 to push the hinge block 750 away from the drive shaft 510. The hinge block 750 then drives the auxiliary shaft 710 away from the drive shaft 510. The auxiliary shaft 710 drives the second water wheel 730 away from the drive shaft 510, reducing the overlap of the first and second blades, increasing the total impact area of ​​the water flow on the first and second blades, increasing the auxiliary rotational power provided to the drive shaft 510, and reducing the load on the drive motor.

[0051] The floating debris that is raked up moves from the vertical screen 200 to the separation plate 220, and is then transferred from the separation plate 220 to the back side of the vertical screen 200 before falling onto a conveyor belt or other conveying mechanism for centralized processing.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A non-clogging rotary cleaning machine for sewage treatment, characterized in that: Includes frame, crossbeams, cleaning mechanism, and adjustment mechanism; The frame is rectangular and fixed at the top and bottom inside the inlet of the sewage tank; the frame has multiple vertical bars spaced at intervals along a horizontal direction perpendicular to the water flow; the multiple vertical bars form a vertical grid; the vertical grid and the frame are fixedly connected. Two horizontal screens are provided, symmetrically distributed on the water-facing side of the vertical screen about the center line of the inlet channel; the horizontal screens include multiple horizontal bars; the horizontal bars are inclined relative to the water flow direction, and the horizontal bars of the two horizontal screens are V-shaped with openings facing the water flow; one end of the horizontal bar is fixedly connected to the frame; the other end is fixedly connected to the side wall of the inlet of the sewage tank. The cleaning mechanism is used to remove floating debris retained on the vertical screen after sewage passes through it. The mechanism includes a drive shaft, drive chains, a drive motor, and cleaning rakes. Two drive shafts are located at the upper and lower ends of the vertical screen. The drive shaft axis is horizontal and perpendicular to the water flow direction. The drive shafts are rotatably mounted on a frame. Sprockets are fixed to both ends of the drive shaft. Two drive chains are symmetrically distributed at both ends of the drive shaft. The drive chains are located at the junction of the vertical and horizontal screens. The drive chains are sleeved on the vertical screen and mesh with the sprockets for transmission. The drive motor is fixed to the frame and is fixedly connected to the drive shaft above. The cleaning rakes include rake rods. The rake rod axis is parallel to the drive shaft, and both ends are fixedly connected to the adjacent drive chains. Rake teeth are fixed to the rake rods. The regulating mechanism is located on the horizontal screen. When the number of floating objects at the vertical screen increases, the regulating mechanism adjusts and reduces the speed of the floating objects flowing from the horizontal screen towards the vertical screen. The regulating mechanism includes a rotating shaft and connecting rods. The axis of the rotating shaft is vertically located on the back side of the horizontal screen. Both ends of the rotating shaft are rotatably mounted on the horizontal screen via bases. A torsion spring connects the rotating shaft and the base. Multiple connecting rods are arranged at intervals. The connecting rods are horizontally arranged and parallel to the horizontal screen. The middle part of the connecting rod is fixedly connected to the rotating shaft. A sensing rod is located at the end of the connecting rod near the vertical screen. The sensing rod is horizontally arranged and perpendicular to the water flow direction. One end of the sensing rod is fixedly connected to the connecting rod, and the other end passes through the horizontal screen, crosses the boundary between the horizontal and vertical screens, and extends to the front side of the vertical screen. An adjusting rod is provided at the end of the connecting rod away from the vertical grid; the adjusting rod is set horizontally and perpendicular to the horizontal grid; the adjusting rod is located between the connecting rod and the horizontal grid; the adjusting rod and the connecting rod are fixedly connected.

2. The anti-clogging rotary cleaning machine for sewage treatment according to claim 1, characterized in that: It also includes an auxiliary mechanism; the auxiliary mechanism uses the impact of water flow to provide auxiliary rotational power for the drive shaft, and when the number of floating objects at the vertical grid increases, it increases the auxiliary rotational power provided to the drive shaft.

3. The anti-clogging rotary cleaning machine for sewage treatment according to claim 2, characterized in that: The auxiliary mechanism includes an auxiliary shaft, a first water turbine, a second water turbine, and a transmission assembly; The auxiliary shaft is coaxial with the drive shaft below; the auxiliary shaft is located on the backwater side of the horizontal bar; one end of the auxiliary shaft is slidably connected to the drive shaft below; the other end is rotatably engaged with the horizontal bar through a connecting plate. The first waterwheel includes two first rings distributed along the axis of the auxiliary shaft; the first rings are coaxially fitted onto the auxiliary shaft; the first ring near the vertical grid is rotatably engaged with the frame; the first ring is slidably engaged with the auxiliary shaft; a plurality of first blades are distributed in a ring between the two first rings; the length direction of the first blades extends along the axial direction of the auxiliary shaft; the two ends of the first blades are fixedly connected to the corresponding first rings. The second waterwheel includes two second rings distributed along the axis of the auxiliary shaft; the second rings are coaxially fitted onto the auxiliary shaft; the second ring closer to the vertical screen is located between the two first rings, and the second ring closer to the vertical screen slides with the first blade; a spring connects the second ring farther from the vertical screen and the connecting plate; the second rings are fixedly connected to the auxiliary shaft; multiple second blades are distributed in a ring between the two second rings; the length direction of the second blades extends along the axial direction of the auxiliary shaft; both ends of the second blades are fixedly connected to the corresponding second rings; the second blades abut and slide with the first blades; the second blades slide with the first ring farther from the vertical screen. The transmission assembly is used to drive the auxiliary shaft to move the second waterwheel away from the drive shaft when there is an increase in floating objects at the vertical grid.

4. The anti-clogging rotary cleaning machine for sewage treatment according to claim 3, characterized in that: The transmission assembly includes a hinge shaft and a hinge block; the hinge shaft is located at one end of the connecting rod near the vertical grid; the hinge shaft is vertically arranged; the hinge shaft and the connecting rod are fixedly connected; the hinge block and the auxiliary shaft are fixedly connected; a hinge rod is provided between the hinge block and the hinge shaft; one end of the hinge rod is hinged to the hinge shaft, and the other end is hinged to the hinge block.

5. The anti-clogging rotary cleaning machine for sewage treatment according to claim 3, characterized in that: The first and second waterwheels are equipped with arc-shaped baffles; the baffles and the frame are fixedly connected.

6. The anti-clogging rotary cleaning machine for sewage treatment according to claim 1, characterized in that: A protective grille is provided on the side of the lower drive shaft away from the vertical grille; the protective grille is fixed to the frame.

7. The anti-clogging rotary cleaning machine for sewage treatment according to claim 1, characterized in that: An arc-shaped separation plate is fixed to the upper end of the vertical grid; the surface of the separation plate is flat.

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