A sewage treatment sundry blocking treatment tool
By designing a sewage treatment tool with a liftable crossbeam and rake teeth, the problem of difficult-to-clean debris on traditional bar screens has been solved, achieving self-cleaning of the bar screens and efficient debris removal, thus improving water flow efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FENGLENG ENVIRONMENTAL TECH (SHANGHAI) CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-23
AI Technical Summary
Debris adhering to traditional barrier grilles is difficult to clean, affecting transmission components and causing a decrease in water flow efficiency.
A wastewater treatment debris blocking tool was designed, which adopts a liftable beam and rake tooth structure, combined with a ring cleaning blade and lifting rope, to achieve automatic cleaning and debris retrieval of the vertical pole.
It achieves a self-cleaning function for the grille, avoids overall disassembly, and improves water flow efficiency and cleaning efficiency.
Smart Images

Figure CN224388177U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater treatment debris blocking and handling tool. Background Technology
[0002] Wastewater filtration and interception equipment is an important component of wastewater treatment systems, preventing blockages or damage to subsequent treatment equipment.
[0003] Common barrier tools, such as barrier screens, intercept larger suspended and floating objects (such as branches, plastic bags, and cloth) in sewage. Ordinary barrier screens can only intercept impurities and cannot actively clean them. Therefore, a circulation transmission component is added to the screen to drive the rake teeth distributed on it to retrieve the debris blocked by the screen.
[0004] However, traditional bar screens are formed by connecting horizontal and vertical bars. Corrosive substances or sticky impurities adhere to the bar screen, making them difficult to clean. Over time, more debris will accumulate, affecting the transmission components and even causing a decrease in water flow efficiency. Utility Model Content
[0005] (I) Technical Issues
[0006] The present invention aims to at least solve the problem of cleaning debris attached to the barrier grille itself, which exists in the prior art.
[0007] (II) Technical Content
[0008] This solution provides a wastewater treatment debris blocking and treatment tool, which is achieved by the following specific technical means, including a bar screen. The bar screen includes a frame, multiple sets of vertical bars that are fixed horizontally at uniform intervals within the frame, and multiple sets of horizontal beams that are slidably distributed vertically within the frame, and the horizontal beams are slidably sleeved on the multiple sets of vertical bars.
[0009] Multiple sets of rake teeth are fixed on the front side of the bottom set of crossbeams facing the direction of the water flow.
[0010] Preferred technical solution 1: The crossbeam has vertical holes of the same number as the vertical rods, and each set of vertical rods passes through a corresponding set of vertical holes;
[0011] A ring-shaped cleaning blade is fixed around the vertical hole on the upper side of the crossbeam. The blade edge of the ring-shaped cleaning blade is in contact with the side wall of the vertical rod and cleans the vertical rod when the crossbeam moves upward.
[0012] Preferred technical solution 2: A rope is connected between two adjacent sets of crossbeams.
[0013] Preferred technical solution three: A lifting rope is fixed on the lowest set of crossbeams. After passing through the holes opened on the upper set of crossbeams, the lifting rope passes through the holes opened on the top wall of the frame and extends to the top of the frame to connect with the external winch.
[0014] Preferred technical solution four: The frame consists of a U-shaped frame and a crossbar fixed to the top of the U-shaped frame by bolts, and the through holes on the frame are located on the crossbar;
[0015] The bottom of each set of vertical rods is inserted into the groove on the bottom wall of the U-shaped frame through a protrusion, and the top of the rod contacts the bottom wall of the cross frame. The vertical rods are fixed by screws that pass through the threaded holes on the cross frame and are inserted into the top holes of the vertical rods.
[0016] (III) Technical Effects
[0017] The above structure gives this solution the following advantages:
[0018] The vertical bars and horizontal beams on the grille were changed from fixed to movable. The vertical bars were cleaned by raising and lowering the horizontal beams, and the rake teeth were used to retrieve the intercepted debris at the same time.
[0019] It integrates the retrieval of debris and the cleaning of the grille, eliminating the need to lift the entire grille for cleaning. Attached Figure Description
[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0021] Figure 1 The state diagram for this solution is provided;
[0022] Figure 2 This is the filtering state diagram for this solution;
[0023] Figure 3 This is a schematic diagram of the rake teeth in this scheme;
[0024] Figure 4 This is a schematic diagram of the vertical rod structure in this scheme;
[0025] Figure 5 This is a structural schematic diagram of the crossbeam in this design.
[0026] Among them, 1. Grid, 11. Frame, 111. U-shaped frame, 112. Horizontal frame, 12. Vertical bar, 121. Protrusion, 122. Top hole, 2. Crossbeam, 21. Protrusion, 3. Rope, 4. Lifting rope, 5. Circular cleaning knife, 6. Rake teeth. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0028] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 Wastewater treatment debris blocking and treatment tool, including screen 1, when screen 1 is in use, the middle and lower part extends below the liquid surface, while the middle and upper part is located on the liquid surface;
[0029] The screen 1 includes a frame 11, multiple sets of smooth vertical bars 12 installed horizontally and evenly within the frame 11, and multiple sets of horizontal beams 2 distributed vertically within the frame 11. Each set of horizontal beams 2 is slidably fitted onto the multiple sets of vertical bars 12. The horizontal beams 2 slide up and down. Multiple sets of rake teeth 6 are welded to the front side of the bottom set of horizontal beams 2 facing the direction of water flow. Every once in a while, the multiple sets of horizontal beams 2 are pulled out of the water surface. During the upward movement, the rake teeth 6 pick up the debris intercepted by the screen 1 for cleaning. At the same time, during the upward movement of the horizontal beams 2, the debris attached to the vertical bars 12 can also be scraped off, thus cleaning the vertical bars 12. The horizontal beams 2 can be cleaned after being pulled out of the water surface.
[0030] At least two sets of screens 1 can be distributed in the direction of sewage flow, and the cleaning actions of multiple sets of screens 1 are carried out alternately;
[0031] A rope 3 connects the two adjacent sets of crossbeams 2. The weight of the crossbeam 2 is much greater than the buoyancy of the crossbeam 2, ensuring that the crossbeam 2 can remain stable in the water. A lifting rope 4 is fixed on the bottom set of crossbeams 2. The lifting rope 4 passes through the holes opened on the upper sets of crossbeams 2, and then passes through the holes opened on the top wall of the frame 11 and extends to the top of the frame 11.
[0032] Multiple sets of lifting ropes 4 distributed on the lowest set of crossbeams 2 are connected to an external winch. The winch is used to wind up and unwind the lifting ropes 4. The winch can be an electric or hand-cranked winch available on the market.
[0033] Due to the arrangement of the rope 3, the crossbeam 2 can achieve a uniform intermittent distribution of multiple sets of crossbeams 2 when it is lowered. When the lifting rope 4 is wound up, the bottom set of crossbeams 2 will gradually contact and push the multiple sets of crossbeams 2 on the upper side as it moves upward.
[0034] In one embodiment: see [link / reference] Figure 1 , Figure 5The crossbeam 2 has the same number of vertical holes as the vertical rods 12, and each set of vertical rods 12 passes through a corresponding set of vertical holes; a ring-shaped cleaning knife 5 is fixed around the vertical holes on the upper side of the crossbeam 2, and the blade of the ring-shaped cleaning knife 5 is in contact with the side wall of the vertical rod 12 to clean the vertical rod 12 when the crossbeam 2 moves upward;
[0035] The annular cleaning knife 5 is composed of multiple sets of arc-shaped blades. The cutting edge of the annular cleaning knife 5 is blunted to avoid scratching the surface of the vertical rod 12.
[0036] In one embodiment: see [link / reference] Figure 3 , Figure 5 Each set of crossbeams 2 has a protrusion 21 fixed on the upper side. When the lower set of crossbeams 2 moves upward, the protrusion 21 on it will contact the bottom wall of the adjacent upper crossbeam 2. The height of the protrusion 121 is greater than the height of the annular cleaning knife 5, which is used to protect the annular cleaning knife 5 and prevent the annular cleaning knife 5 from colliding with the upper crossbeam 2.
[0037] At the same time, after the liquid surface is removed from multiple sets of crossbeams 2, gaps are formed between the crossbeams 2, which facilitates the inspection of the annular cleaning knife 5 and the cleaning of the crossbeams 2.
[0038] In one embodiment: see [link / reference] Figure 3 , Figure 4 The frame 11 consists of a U-shaped frame 111 and a crossbar 112 fixed to the top of the U-shaped frame 111 by bolts. The through holes on the frame 11 are located on the crossbar 112. The bottom end of each set of vertical rods 12 is inserted into the groove on the bottom wall of the U-shaped frame 111 through the protrusion 121, and the top end contacts the bottom wall of the crossbar 112. The vertical rods 12 are fixed by screws passing through the threaded holes on the crossbar 112 and being inserted into the top holes 122 of the vertical rods 12. The above connection method allows the crossbar 112 to be removed and the deformed vertical rods 12 to be replaced when the vertical rods 12 are deformed.
[0039] This solution uses corrosion-resistant materials throughout and requires routine maintenance of each component according to the specified maintenance plan to ensure its working condition.
[0040] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.
[0041] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wastewater treatment debris interception and treatment tool, comprising a screen (1), characterized in that: The grid (1) includes a frame (11), multiple sets of vertical rods (12) fixed horizontally at uniform intervals within the frame (11), and multiple sets of horizontal beams (2) distributed vertically within the frame (11). The horizontal beams (2) are slidably sleeved on the multiple sets of vertical rods (12), and ropes (3) are connected between two adjacent sets of horizontal beams (2). Multiple sets of rake teeth (6) are fixed on the bottom set of crossbeams (2).
2. A sewage treatment debris barrier treatment tool according to claim 1, wherein: The crossbeam (2) has a vertical hole through which the vertical rod (12) passes; Furthermore, a lifting rope (4) is fixed on the bottommost set of crossbeams (2). The lifting rope (4) passes through the holes opened on the upper set of crossbeams (2), and then passes through the holes opened on the top wall of the frame (11) and extends to the top of the frame (11).
3. A sewage treatment debris barrier treatment tool according to claim 2, wherein: A ring-shaped cleaning knife (5) is fixed around the vertical hole on the upper side of the crossbeam (2), and the cutting edge of the ring-shaped cleaning knife (5) is in contact with the vertical rod (12).
4. A sewage treatment debris barrier treatment tool according to claim 3, wherein: The annular cleaning blade (5) is composed of multiple sets of arc-shaped blades.
5. A sewage treatment debris barrier treatment tool according to claim 3, wherein: A protrusion (21) is fixed on the upper side of each set of crossbeams (2); The height of the protrusion (21) is greater than the height of the annular cleaning blade (5).
6. A sewage treatment debris barrier treatment tool according to claim 1, wherein: The weight of the beam (2) is greater than the buoyancy force acting on the beam (2).
7. A sewage treatment debris barrier treatment tool according to claim 1 or 5 wherein: The frame (11) consists of a U-shaped frame (111) and a crossbar (112) fixed to the top of the U-shaped frame (111) by bolts; The bottom end of each set of vertical rods (12) is inserted into the groove on the bottom wall of the U-shaped frame (111) through the protrusion (121), and the top is in contact with the bottom wall of the cross frame (112) and fixed by screws.