Rotary bar screen machine with sundry interception function for sewage cleaning

Abstract

The invention discloses a rotary grille decontamination machine with a sundry interception function for sewage cleaning, relates to the technical field of sewage treatment, and aims to solve the problem that suspended solids are still suspended in a rubber brush cleaning mode depending on unidirectional reverse operation. The device comprises a pair of racks arranged in a diversion canal, the racks are arranged in the water inlet direction in a spaced mode, and a plurality of intercepting assemblies are evenly installed between the racks; through the arrangement of the short brush and the long brush which are matched with each other in reverse rotation and non-directional rotation, multi-directional impurity removal of the rake teeth in the rotation process can be achieved, the backwashing effect is synchronously provided, and the situation that suspended solids enter sewage again and then block normal operation of the sewage impurity removal work process is reduced; the dirt remover can be arranged in the water inlet direction of the diversion canal in parallel, so that the sewage is intercepted by the intercepting assemblies which continuously rotate on the two sides and then is discharged through the notches on the two sides, the sewage passing flow in the single sewage impurity removal process is increased, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a rotary screen dirt remover for sewage cleaning with debris interception. Background Art

[0002] The rotary screen dirt remover is also called the rotary screen. It can automatically intercept and remove various large solid impurities in sewage. In actual application, the rotary screen rotates continuously, and the rake teeth intercept the solid suspended matter in the sewage. When the intercepted matter is transported to the upper part of the equipment, the rake teeth change the direction of movement to make the solid debris fall by itself, so that the debris stuck on the rake teeth is cleaned by the reverse operation of the rubber brush of the cleaning mechanism. Combined with the above-mentioned principle of dirt removal of the rotary screen: specifically, the rubber brush in the dirt removal mechanism is used to complete the removal, and for the solid suspended matter that is partially adhered to the rake teeth, the solid suspended matter still hangs when only the rubber brush running in the reverse direction is used to remove it, which affects the efficiency of intercepting debris in the sewage; For this purpose, this application proposes a solution. Summary of the invention

[0003] The object of the present invention is to provide a rotary screen dirt remover for sewage cleaning with debris interception, so as to solve the technical defects proposed by the background technology.

[0004] The object of the present invention can be achieved by the following technical scheme: a rotary screen dirt remover for sewage cleaning with debris interception, comprising a pair of frames arranged in a water diversion channel, the frames are arranged at intervals in the water inlet direction, and a plurality of interception components are evenly installed between the frames; The interception assembly includes a filter screen arranged at one end of the grille box, a baffle bar is installed on the inner side of the grille box corresponding to the filter screen, two sets of rake teeth arranged at intervals are installed on the side of the grille box away from the baffle bar, and a cleaning assembly for cleaning the rake teeth is installed on the inner side of the frame corresponding to the upper side of the water diversion channel; The cleaning assembly comprises a sleeve rod and a reverse rod connected to each other in rotation, the outer side of the outer end of the sleeve rod is provided with short brushes distributed at intervals, and the reverse rod extends to the outside of the sleeve rod and is provided with long brushes staggered with the short brushes; the outer side of the cleaning assembly corresponding to the frame is provided with a flushing assembly for backwashing the cleaning assembly, the flushing assembly comprises a water inlet pipe connected to the output end of the water pump, and the inner side of the water inlet pipe is connected with a plurality of spray pipes; A sewage drain trough parallel to the water inlet pipe is installed on the inner side of the frame.

[0005] It is further configured as follows: a pair of water guide plates are installed on the inner walls on both sides of the water diversion channel close to the water inlet side, the inner ends of the water guide plates are connected to connecting plates connected to the frame, the lower ends of the connecting plates are installed with bottom sealing plates matching the bottom of the front frame, and the end of the water diversion channel close to the water discharge side is installed with a stop plate connected to the rear frame.

[0006] It is further configured as follows: a pair of the frames are each provided with a slide rail installed on the inner side close to each other, a ball rod matching the slide rail is installed at the corner of each grille box through a connecting rod, and a straightening rod abutting against the frame is installed at the outer end of the grille box corresponding to the connecting rod rotation connection.

[0007] It is further configured as follows: a driving wheel connected to a driving mechanism is installed at the inner top of the frame, the driving mechanism includes a driving motor and a reducer whose output end is connected to the driving wheel, a gear rod is horizontally installed in the middle of the outer side of each filter, and a gear groove meshing with the gear rod is opened on the driving wheel.

[0008] It is further configured as follows: the cleaning component also includes a bearing ring connected to the inner side of the frame, rotating plates rotatably connected to the bearing ring are installed at both ends of the sleeve group rod, and a rotating hole matching the long brush is opened on the sleeve group rod.

[0009] It is further configured as follows: a hollow cylinder is installed outside the rotating plate, a second bottom plate is installed on the outer end of one side of the frame corresponding to the hollow cylinder, a second motor whose output end is connected to the hollow cylinder is installed on the second bottom plate, a first bottom plate is installed on the other end of the frame corresponding to the second bottom plate, and a first motor whose output end is connected to the reverse rod is installed on the first bottom plate.

[0010] It is further configured that: the short brush and the long brush overlap with the rake teeth during the swinging process, and the motor 1 and the motor 2 are both forward and reverse servo motors.

[0011] It is further configured as follows: a plurality of spaced grid plates are vertically installed on the inner side of the grid box corresponding to the filter screen, the blocking rod runs horizontally between the grid plates and both ends are connected to the inner wall of the grid box, and an elastic belt is commonly installed between the ends of adjacent grid boxes.

[0012] It is further configured as follows: the sewage trough is a trough body with a hook-shaped cross-section, the height of one end of the sewage trough close to the water inlet side is higher than the height of one end of the water discharge side, and the sewage trough is connected to the sewage collecting tank.

[0013] It is further configured as follows: a coil spring is sleeved on the outside of the straightening rod, and the straightening rod is connected to the inner wall of the rotation connection through hole on the grille box through the other end of the coil spring.

[0014] The present invention has the following beneficial effects: 1. The present invention aims to solve the problem that suspended solids are still suspended by the rubber brush cleaning method that relies on unidirectional reverse rotation. By providing short brushes and long brushes that cooperate with reverse rotation and non-directional rotation, multi-directional impurity removal of rake teeth in the rotating process is achieved, avoiding the phenomenon that suspended solid impurities cannot be removed by only using the rubber brush that relies on unidirectional reverse rotation to remove suspended solids, and providing a backwashing effect simultaneously, reducing the phenomenon that suspended solids re-enter the sewage and thus "block" the normal operation of the sewage impurity removal process. 2. The sewage can be discharged through the gaps on both sides by setting the sewage remover parallel to the water inlet direction of the water diversion channel, so that the sewage is intercepted by the continuously rotating interception components on both sides. The purpose of this setting is to increase the sewage flow rate in a single sewage removal process, thereby improving the sewage treatment efficiency; by using the reverse rotation and non-directional rotation to remove impurities and increase the sewage flow rate, the sewage removal flow rate per unit time can be effectively achieved, and the solid suspended matter removal method coordinated with the reverse rotation and non-directional rotation can avoid the phenomenon of incomplete impurity removal, thereby comprehensively improving the sewage treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of a rotary screen dirt remover for sewage cleaning with debris interception proposed by the present invention; Figure 2 This is a schematic diagram of the rear view structure of the rotary screen dirt remover for sewage cleaning with debris interception proposed by the present invention; Figure 3 This is a schematic diagram of the installation of the water guide assembly in the water channel of the rotary screen dirt remover for sewage cleaning with debris interception proposed by the present invention; Figure 4 A schematic diagram of the structure of the grille dirt removal mechanism of the rotary grille dirt removal machine for sewage cleaning with debris interception proposed by the present invention; Figure 5 This is a schematic diagram of the disassembly of the driving wheel of the rotary screen dirt remover for sewage cleaning with debris interception proposed by the present invention; Figure 6 This is a front structural view of the interception assembly of the rotary screen dirt remover for sewage cleaning with debris interception proposed by the present invention; Figure 7It is a rear view structural diagram of the interception assembly of the rotary screen dirt remover for sewage cleaning with debris interception proposed by the present invention; Figure 8 This is a schematic diagram of the installation of the interception assembly of the rotary screen dirt remover for sewage cleaning with debris interception proposed by the present invention; Fig. 9 This is a structural diagram of the cleaning component of the rotary screen cleaning machine for sewage cleaning with debris interception proposed by the present invention; Fig.10 A schematic diagram of the disassembly of the cleaning components of the rotary screen cleaning machine for sewage cleaning with debris interception proposed by the present invention; Fig.11 A cross-sectional view of a rotary screen dirt remover for sewage cleaning with debris interception proposed by the present invention; Fig.12 The rotary screen dirt remover for sewage cleaning with debris interception proposed by the present invention Fig.11 Enlarged view of point A in .

[0017] In the figure: 1, water diversion channel; 2, frame; 3, water guide plate; 4, connecting plate; 5, stop plate; 6. Interception assembly; 61. Grille box; 62. Filter screen; 63. Grille plate; 64. Stop rod; 65. Ball rod; 66. Connecting rod; 67. Straightening rod; 68. Rake teeth; 69. Tooth rod; 7. Cleaning assembly; 701. Bottom plate 1; 702. Bottom plate 2; 703. Motor 1; 704. Motor 2; 705. Sleeve assembly rod; 706. Short brush; 707. Reverse rod; 708. Long brush; 709. Rotating plate; 710. Bearing ring; 711. Hollow cylinder; 8. Flushing assembly; 81. Water inlet pipe; 82. Spray pipe; 9. Driving wheel; 10. Drain chute; 11. Elastic belt; 12. Bottom sealing plate; 13. Tooth groove; 14. Slide rail. DETAILED DESCRIPTION

[0018] The technical scheme of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: In order to solve the problem that the solid suspended matter is still suspended in the grille dirt remover due to the rubber brush cleaning method that only relies on one-way reverse operation, the following technical solution is proposed: Reference Figure 1-Figure 12As shown, in this embodiment, the rotary screen dirt remover for sewage cleaning with debris interception includes a pair of frames 2 arranged in a water diversion channel 1, the frames 2 are arranged at intervals in the water inlet direction, and a plurality of interception components 6 are evenly installed between the frames 2 through a slide rail 14; the interception component 6 includes a filter screen 62 arranged at one end side of a screen box 61, a baffle 64 is installed on the inner side of the screen box 61 corresponding to the filter screen 62, two groups of rake teeth 68 arranged at intervals are installed on the side of the screen box 61 away from the baffle 64, and a cleaning component 7 for cleaning the rake teeth 68 is installed on the inner side of the frame 2 corresponding to the upper side of the water diversion channel 1; Reference Figure 9-10 As shown, the cleaning assembly 7 includes a sleeve rod 705 and a reverse rod 707 that are rotatably connected to each other, the outer side of the outer end of the sleeve rod 705 is provided with short brushes 706 that are spaced apart, and the reverse rod 707 extends to the outside of the sleeve rod 705 and is provided with long brushes 708 that are staggered with the short brushes 706; the inner side of the frame 2 is provided with a drain trough 10 that is arranged parallel to the water inlet pipe 81; The cleaning assembly 7 also includes a bearing ring 710 connected to the inner side of the frame 2, and rotating plates 709 rotatably connected to the bearing ring 710 are installed at both ends of the sleeve group rod 705, and a rotating hole matching the long brush 708 is opened on the sleeve group rod 705; a hollow cylinder 711 is installed outside the rotating plate 709, and a bottom plate 2 702 is installed on the outer end of one side of the frame 2 corresponding to the hollow cylinder 711, and a motor 2 704 whose output end is connected to the hollow cylinder 711 is installed on the bottom plate 2 702, and a bottom plate 1 701 is installed on the other end of the frame 2 corresponding to the bottom plate 2 702, and a motor 1 703 whose output end is connected to the reverse rod 707 is installed on the bottom plate 1 701; The short brush 706 and the long brush 708 overlap with the rake teeth 68 during the swinging process. The motor 1 703 and the motor 2 704 are both forward and reverse servo motors. A plurality of grid plates 63 are vertically installed at intervals on the inner side of the grid box 61 corresponding to the filter screen 62. The blocking rod 64 runs horizontally between the grid plates 63 and is connected to the inner wall of the grid box 61 at both ends. An elastic band 11 is installed between the ends of adjacent grid boxes 61. The blocking rod 64 is fixed by the grid plate 63, and can provide secondary blocking of solid suspended impurities that just pass through the filter screen 62 to achieve multiple filtering effects. The elastic band 11 provides spacing supplement for each interception component 6 during the rotation process to avoid the leakage of solid suspended matter caused by large cracks. Reference Figure 4-Figure 7 and Fig.11As shown, a driving wheel 9 connected to a driving mechanism is installed at the inner top of the frame 2, and the driving mechanism includes a driving motor and a reducer connected to the driving wheel 9 at the output end. A gear rod 69 is horizontally installed in the middle of the outer side of each filter screen 62, and a tooth groove 13 meshing with the gear rod 69 is provided on the driving wheel 9. A pair of inner sides close to each other of the frames 2 are installed with a slide rail 14, and a ball rod 65 matching the slide rail 14 is installed at the corners of each grille box 61 through a connecting rod 66, wherein the operation process of the interception component 6 is as follows: the driving motor drives the driving wheel 9 to rotate through the reducer, and the driving wheel 9 meshes and transmits the gear rod 69 on each interception component 6 through the tooth groove 13 thereon, so that the grille box 61 completes the guided movement when it is rollingly connected with the slide rail 14 through the ball rod 65, that is, a rotary action is formed to drive the intercepted solid suspended matter to move.

[0020] Basic principle: After the sewage enters the sewage remover, it is first intercepted by the continuously rotating interception components 6 on both sides, and then discharged through the gaps on both sides of the sewage remover corresponding to the water diversion channel 1, while the solid suspended matter in the sewage is intercepted on the interception component 6 of the sewage remover, and then the interception component 6 rotates and then passes through the cleaning component 7 to complete the removal and collection of solid impurities; The specific process is as follows: when solid impurities are trapped on the filter screen 62 on the interception component 6, the grille box 61 continuously rotates to move the solid impurities to the other side of the dirt remover, and the direction of the rake teeth 68 changes, so that the solid impurities fall under the action of gravity. When the solid impurities cannot be completely removed, the motor 1 703 and the motor 2 704 are started, and the motor 1 703 and the motor 2 704 respectively drive the long brush 708 and the short brush 706 to swing and rotate; The specific swing method is as follows: refer to 9- Fig.12 As shown, first, the motor 2 704 drives the short brush 706 to rotate axially through the sleeve rod 705, at which time the short brush 706 overlaps and contacts with the vertically falling rake teeth 68, and the synchronous motor 1 703 drives the long brush 708 to swing bidirectionally on the sleeve rod 705 through the reverse rod 707, and the swinging trajectory of the long brush 708 is complementary to the swinging trajectory of the sleeve rod 705, that is, during the rotation of the sleeve rod 705, the long brush 708 always rotates in the perforation of the sleeve rod 705, and finally the staggered short brushes 706 and long brushes 708 jointly scrape off all the solid impurities that cannot be removed on the rake teeth 68; In the actual process of removing suspended impurities, fine impurities that cannot be scraped off by the short brush 706 and the long brush 708 are solved by the following method, including that the outer side of the cleaning component 7 corresponding to the frame 2 is provided with a flushing component 8 for backwashing the cleaning component 7, and the flushing component 8 includes a water inlet pipe 81 connected to the output end of the water pump, and the inner side of the water inlet pipe 81 is connected with a plurality of spray pipes 82; During the operation of the above-mentioned cleaning component 7, the water inlet pipe 81 is connected to the middle water pool after cleaning by a water pump, and the nozzle 82 is aligned with the cleaning component 7, so that in addition to removing the solid impurities hanging on the short brush 706 and the long brush 708, the rake teeth 68 can also be backwashed, thereby reducing the probability of the solid impurities in the cleaning machine entering the sewage again, and improving the sewage impurity removal efficiency; The outer end of the rotating connection of the corresponding connecting rod 66 of the grille box 61 is installed with a straightening rod 67 that abuts against the frame 2. The outer sleeve of the straightening rod 67 is connected with a coil spring. The straightening rod 67 is connected to the inner wall of the rotating connection perforation on the grille box 61 through the other end of the coil spring. When passing through the semicircular structure on the slide rail 14, the ball rod 65 drives the coil spring to compress, thereby forming a stable transmission of the interception component 6 on the slide rail 14. After moving out of the semicircular structure on the slide rail 14, the coil spring resets and continues to drive the ball rod 65 to form a stable movement through the straightening rod 67. In this process, the tooth groove 13 on the driving wheel 9 is always meshed with the corresponding gear rod 69 for transmission; In summary: during the operation of the rake teeth 68, the rotary screen cleaner realizes multi-directional impurity removal of the rake teeth 68 during the rotation process by setting the short brush 706 and the long brush 708 that rotate in the opposite direction and in an undirected manner, avoiding the problem of suspended solid impurities not being removed by only using a rubber brush that rotates in a single direction in the opposite direction to remove solid suspended matter, and simultaneously provides a backwashing effect, reducing the phenomenon that solid suspended matter re-enters the sewage and thus "blocks" the normal operation of the sewage impurity removal process.

[0021] Embodiment 2: This embodiment is combined with Embodiment 1 to solve the technical problem that the entire rotary screen dirt remover is arranged perpendicular to the water flow direction, resulting in a limited flow rate of sewage; Reference Figure 1-Figure 3 and Figure 5 As shown, a pair of water guide plates 3 are installed on the inner walls of the water diversion channel 1 near the water inlet side, the inner end of the water guide plate 3 is connected to a connecting plate 4 connected to the frame 2, and the lower end of the connecting plate 4 is installed with a bottom sealing plate 12 matching the bottom of the front frame 2, and a stop plate 5 connected to the rear frame 2 is installed at one end of the water diversion channel 1 near the water discharge side. Notches are opened on both sides of the water diversion channel 1 corresponding to the sewage remover, so that the sewage can be diverted after being intercepted; The sewage trough 10 is a trough body with a hook-shaped cross section. The height of the sewage trough 10 near the water inlet side is higher than the height of the water discharge side. The sewage trough 10 is connected to the sewage collection tank. When the screen dirt remover is set, the dirt remover is set parallel to the water inlet direction of the water diversion channel 1. When the sewage enters, it is first intercepted by the continuously rotating interception components 6 on both sides. After the sewage is discharged through the gaps on both sides, the suspended solid impurities in it are intercepted, and the sewage is discharged through the two sides. The purpose of this setting is to increase the sewage flow rate in the single sewage impurity removal process, thereby improving the sewage treatment efficiency; In combination with Example 1, after the suspended solid impurities are intercepted, they are suspended on the rake teeth 68 and lifted to the top, and fall downward into the drain trough 10 under the action of gravity, and flow to the sewage collection tank in the inclined drain trough 10. The suspended solid impurities that have not fallen are cleared by the opposite rotation of the short brush 706 and the long brush 708 in the cleaning component 7, and can also fall into the drain trough 10 below. Not only that, the backwashing of the short brush 706 and the long brush 708 by the medium water sprayed by the nozzle 82 can also flush the adhered suspended solid impurities into the drain trough 10. At this point, the joint collection of suspended solid impurities under the triple impurity removal effect is completed.

[0022] Example 3: Reference Figure 1-Figure 12 As shown, this embodiment combines the technical contents of the first and second embodiments to form the following control scheme: Step 1: When sewage enters, it is first intercepted by the continuously rotating interception components 6 on both sides. After the sewage is discharged through the gaps on both sides, the suspended solid impurities in it are intercepted, and the sewage is discharged through the two sides; Step 2: When solid impurities are trapped on the filter screen 62 on the interception component 6, the grille box 61 continuously rotates to move the solid impurities to the other side of the dirt remover, and the direction of the rake teeth 68 changes, so that the solid impurities fall under the action of gravity. When the solid impurities cannot be completely removed, the motor 1 703 and the motor 2 704 are started, and the motor 1 703 and the motor 2 704 respectively drive the long brush 708 and the short brush 706 to swing and rotate; Step 3: In step 2, the motor 2 704 drives the short brush 706 to rotate axially through the sleeve rod 705. At this time, the short brush 706 overlaps and contacts with the vertically falling rake teeth 68. The synchronous motor 1 703 drives the long brush 708 to swing bidirectionally on the sleeve rod 705 through the reverse rod 707. The swinging trajectory of the long brush 708 is complementary to the swinging trajectory of the sleeve rod 705. That is, during the rotation of the sleeve rod 705, the long brush 708 always rotates in the perforation of the sleeve rod 705. Finally, the staggered short brushes 706 and long brushes 708 jointly scrape off all the solid impurities that cannot be removed on the rake teeth 68. Step 4: After the suspended solid impurities are intercepted, they are suspended on the rake teeth 68 and lifted to the top, and fall downward into the drain trough 10 under the action of gravity, and flow to the sewage collection tank in the inclined drain trough 10. The suspended solid impurities that have not fallen are cleared by the opposite rotation of the short brush 706 and the long brush 708 in the cleaning component 7, and can also fall into the drain trough 10 below. Not only that, the backwashing of the short brush 706 and the long brush 708 by the medium water sprayed by the nozzle 82 can also flush the adhered suspended solid impurities into the drain trough 10. At this point, the joint collection of suspended solid impurities under the triple impurity removal effect is completed.

[0023] In summary, in combination with the contents of the above-mentioned embodiments 1, 2 and 3, the short brush 706 and the long brush 708 that are matched with the reverse rotation and the non-directional rotation can be used to realize the multi-directional impurity removal of the rake teeth 68 during the rotation process, thereby avoiding the phenomenon that the suspended solid impurities cannot be removed by only using the rubber brush that relies on the reverse rotation of one direction to remove the suspended solids, and simultaneously providing the backwashing effect, thereby reducing the phenomenon that the suspended solids re-enter the sewage and thus "block" the normal operation of the sewage impurity removal process; The sewage can also be discharged through the gaps on both sides by setting the sewage remover parallel to the water inlet direction of the water diversion channel 1, so that the sewage is intercepted by the continuously rotating interception components 6 on both sides. The purpose of this setting is to increase the sewage flow rate in a single sewage removal process, thereby improving the sewage treatment efficiency. The mutual use of the two can effectively realize the sewage removal flow rate per unit time, and avoid the phenomenon of incomplete impurity removal by the solid suspended matter removal method coordinated with reverse rotation and non-directional rotation, thereby comprehensively improving the sewage treatment efficiency.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods.

Claims

1. A rotary screen dirt remover for sewage cleaning with debris interception, comprising a pair of frames (2) arranged in a water diversion channel (1), characterized in that: The racks (2) are arranged at intervals in the water inlet direction, and a plurality of interception components (6) are evenly installed between the racks (2); The interception assembly (6) comprises a filter screen (62) arranged at one end of a grille box (61); a blocking rod (64) is installed on the inner side of the grille box (61) corresponding to the filter screen (62); two groups of rake teeth (68) are installed at intervals on the side of the grille box (61) away from the blocking rod (64); and a cleaning assembly (7) for cleaning the rake teeth (68) is installed on the inner side of the frame (2) above the water diversion channel (1); The cleaning component (7) comprises a sleeve rod (705) and a reverse rod (707) which are rotatably connected to each other; short brushes (706) arranged at intervals are installed on the outer side of the outer end of the sleeve rod (705); the reverse rod (707) extends outside the sleeve rod (705) and has long brushes (708) arranged in an interlaced manner with the short brushes (706); a flushing component (8) for backwashing the cleaning component (7) is arranged on the outer side of the frame (2) corresponding to the cleaning component (7); the flushing component (8) comprises a water inlet pipe (81) connected to the output end of a water pump; a plurality of spray pipes (82) are connected to the inner side of the water inlet pipe (81); A sewage trough (10) arranged parallel to the water inlet pipe (81) is installed on the inner side of the frame (2).

2. The rotary screen dirt remover for sewage cleaning with debris interception according to claim 1 is characterized in that: A pair of water guide plates (3) are installed on the inner walls of both sides of the water diversion channel (1) close to the water inlet side, the inner ends of the water guide plates (3) are connected to a connecting plate (4) connected to the frame (2), the lower ends of the connecting plates (4) are installed with a bottom sealing plate (12) matching the bottom of the front frame (2), and the end of the water diversion channel (1) close to the water discharge side is installed with a stop plate (5) connected to the rear frame (2).

3. The rotary screen dirt remover for sewage cleaning with debris interception according to claim 1, characterized in that: A pair of the frames (2) are each provided with a slide rail (14) installed on their adjacent inner sides; a ball rod (65) matching the slide rail (14) is installed at the corner of each grille box (61) via a connecting rod (66); and a straightening rod (67) abutting against the frame (2) is installed at the outer end of the rotation connection of the grille box (61) corresponding to the connecting rod (66).

4. The rotary screen dirt remover for sewage cleaning with debris interception according to claim 2, characterized in that: A driving wheel (9) connected to a driving mechanism is mounted on the inner top of the frame (2), the driving mechanism comprising a driving motor and a reducer connected to the driving wheel (9) at the output end, a gear rod (69) is mounted transversely in the middle of the outer side of each filter screen (62), and a tooth groove (13) meshing with the gear rod (69) is formed on the driving wheel (9).

5. The rotary screen dirt remover for sewage cleaning with debris interception according to claim 1, characterized in that: The cleaning assembly (7) further comprises a bearing ring (710) connected to the inner side of the frame (2); rotating plates (709) rotatably connected to the bearing ring (710) are mounted at both ends of the sleeve assembly rod (705); and a rotating hole matching the long brush (708) is provided on the sleeve assembly rod (705).

6. The rotary screen dirt remover for sewage cleaning with debris interception according to claim 5, characterized in that: A hollow cylinder (711) is installed outside the rotating plate (709); a second bottom plate (702) is installed on the outer end of one side of the frame (2) corresponding to the hollow cylinder (711); a second motor (704) whose output end is connected to the hollow cylinder (711) is installed on the second bottom plate (702); a first bottom plate (701) is installed on the other end of the frame (2) corresponding to the second bottom plate (702); a first motor (703) whose output end is connected to a reverse rod (707) is installed on the first bottom plate (701).

7. The rotary screen dirt remover for sewage cleaning with debris interception according to claim 6, characterized in that: The short brush (706) and the long brush (708) both overlap with the rake teeth (68) during the swinging process, and the motor 1 (703) and the motor 2 (704) are both forward and reverse servo motors.

8. The rotary screen dirt remover for sewage cleaning with debris interception according to claim 1, characterized in that: A plurality of grid plates (63) are vertically installed at intervals on the inner side of the grid box (61) corresponding to the filter screen (62); the blocking rod (64) is horizontally passed through the grid plates (63) and connected to the inner wall of the grid box (61) at both ends; and an elastic band (11) is installed between the ends of adjacent grid boxes (61).

9. The rotary screen dirt remover for sewage cleaning with debris interception according to claim 1, characterized in that: The sewage trough (10) is a trough body with a hook-shaped cross section. The height of one end of the sewage trough (10) close to the water inlet side is higher than the height of one end of the water discharge side. The sewage trough (10) is connected to the sewage collecting tank.

10. The rotary screen dirt remover for sewage cleaning with debris interception according to claim 3, characterized in that: The straightening rod (67) is sleeved with a coil spring on its exterior, and the straightening rod (67) is connected to the inner wall of the rotationally connected through hole on the grille box (61) via the other end of the coil spring.

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