A foam driving device for a sewage treatment tank

Abstract

The utility model discloses a kind of foam driving devices for sewage treatment tank, it is related to sewage treatment technical field.The utility model includes: scraper, the scraper is hollow cavity and its both ends are open structure, the inside surface of the scraper is connected with fixed rod at equal intervals, the end of the fixed rod is fixed with connecting ring, the back of the scraper is provided with floating bladder;L-shaped plate, slidingly inserted in the both ends of the scraper, one end of two L-shaped plates in the inside of scraper is connected by spring, the side plate of the L-shaped plate is fixed with U-shaped pull rope, the U-shaped pull rope is sleeved on the surface of fixed rod on the side away from L-shaped plate;The utility model realizes length free adjustment by traction rope and L-shaped plate linkage, break through traditional screw length limit, suitable for different size sewage treatment tank, in addition telescopic scraper length adjustable, meet small to large sewage treatment tank demand, solve the problem that traditional screw driving device is limited to pool size.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment technology, specifically to a foam-repelling device for sewage treatment ponds. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. During wastewater treatment, a large amount of foam will be generated above the surface of the liquid in the wastewater treatment tank.

[0003] Chinese utility model patent CN222795227U discloses a foam-repelling device for a sewage treatment tank, including a displacement mechanism disposed on the upper part of the sewage treatment tank. The displacement mechanism includes a mounting base bolted to one side of the outer wall of the sewage treatment tank, two adjusting motors bolted to one side of the outer wall of the mounting base, two adjusting screws connected to one end of the output shaft of the adjusting motors by couplings, and adjusting seats bolted to the outer walls of the two adjusting screws. The adjusting seats are provided with support components on both sides, and adjusting components are provided on the adjusting seats.

[0004] The aforementioned device uses a motor-driven screw to drive a scraper to remove foam from a wastewater tank. However, this method has limitations. First, the screw's length is finite, restricting its effective range and making it unsuitable for wastewater treatment tanks of varying sizes, especially large ones, where it cannot effectively remove foam from the entire surface. Second, the scraper's size is fixed, preventing flexible adjustments based on the specific conditions of the wastewater tank and the amount of foam generated. This results in poor foam removal under different operating conditions, failing to meet diverse wastewater treatment needs. Therefore, we propose a foam removal device for wastewater treatment tanks to address these issues. Utility Model Content

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A foam-repelling device for a wastewater treatment pond, comprising:

[0007] The scraper is a hollow cavity with open ends. Fixed rods are connected at equal intervals on the inner side of the scraper. A connecting ring is fixed at the end of the fixed rod. A float is provided on the back of the scraper.

[0008] L-shaped plates are slidably inserted into both ends of the scraper. The two L-shaped plates are connected by a spring at one end inside the scraper. A U-shaped pull rope is fixed to the side plate of the L-shaped plate. The side of the U-shaped pull rope away from the L-shaped plate is sleeved on the surface of the fixing rod.

[0009] A movable base, wherein traction ropes are provided on both sides of the top of the movable base, and a self-locking buckle is connected to the end of the traction rope away from the movable base, and the self-locking buckle is adapted to the connecting ring;

[0010] A winding mechanism is located at the top center of the movable base, and the winding mechanism is used to wind up the traction rope.

[0011] Furthermore, the scraper has fixing rings connected to both sides of its back side, and the float is embedded inside the fixing rings at both ends.

[0012] Furthermore, the movable base includes a mounting groove, with support rods fixed at the four corners of the top of the mounting groove, a bearing plate fixed at the top of the support rods, a scraper adapted to the size of the mounting groove, and a rectangular hole formed in the center of the interior of the mounting groove.

[0013] Furthermore, rollers are installed at the four corners of the bottom surface of the mounting groove, and the rollers are self-locking omnidirectional wheels.

[0014] Furthermore, the winding mechanism includes a U-shaped plate fixed to the top of the movable base, a dual-axis motor is installed inside the U-shaped plate, the two output shafts of the dual-axis motor are connected to mounting rods, a winding reel is provided at the end of the mounting rods, and one end of the traction rope is wound inside the winding reel.

[0015] Furthermore, a square plate is slidably inserted at the end of the mounting rod away from the dual-axis motor, the winding reel is fixed at the end of the square plate away from the mounting rod, a strip-shaped hole is constructed on the side of the mounting rod near the winding reel, and a screw is fixed on the side wall of the end of the square plate located inside the mounting rod, the screw is slidably inserted in the strip-shaped hole, and a locking nut is threaded to its end.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model achieves free length adjustment by linking the traction rope with the L-shaped plate, breaking through the traditional screw length limitation and is suitable for sewage treatment tanks of different sizes. In addition, the length of the telescopic scraper is adjustable to meet the needs of small to large sewage treatment tanks, solving the problem that traditional screw drive devices are limited by the size of the tank. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the movable base of this utility model;

[0020] Figure 3 This is a utility model Figure 2 Enlarged structural diagram of section A;

[0021] Figure 4 This is a schematic diagram of the scraper structure of this utility model.

[0022] Reference numerals: 1. Scraper; 101. Fixing ring; 2. Fixing rod; 3. Connecting ring; 4. Float; 5. L-shaped plate; 6. U-shaped pull rope; 7. Movable base; 701. Mounting groove; 7011. Rectangular hole; 702. Support rod; 703. Bearing plate; 704. Roller; 8. Traction rope; 801. Self-locking buckle; 9. Winding mechanism; 901. C-shaped plate; 902. Dual-axis motor; 903. Mounting rod; 9031. Strip hole; 904. Winding reel; 905. Square plate; 906. Screw; 907. Locking nut. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] This application provides a foam removal device for sewage treatment ponds, mainly addressing the following issues in existing technologies: First, the limited length of the screw restricts its effective range, making it difficult to adapt to sewage treatment ponds of different sizes, especially large ones, where it cannot effectively remove foam from the entire surface. Second, the fixed size of the scraper prevents flexible adjustment based on the specific conditions of the sewage treatment pond and the amount of foam generated, resulting in poor foam removal under different operating conditions and failing to meet diverse sewage treatment needs. The application provides the following technical solution, which will be discussed in conjunction with... Figures 1-4 Please provide a detailed explanation:

[0025] A foam-repelling device for a wastewater treatment pond, comprising:

[0026] Scraper 1, which is a hollow cavity with open ends, has fixed rods 2 connected at equal intervals on its inner side, and a connecting ring 3 fixed at the end of the fixed rods 2. A float 4 is provided on the back of the scraper 1.

[0027] L-shaped plates 5 are slidably inserted at both ends of scraper 1. The two L-shaped plates 5 are connected by a spring at one end inside scraper 1. A U-shaped pull rope 6 is fixed on the side plate of L-shaped plate 5. The side of U-shaped pull rope 6 away from L-shaped plate 5 is sleeved on the surface of fixed rod 2.

[0028] The mobile base 7 has traction ropes 8 on both sides of its top. The end of the traction rope 8 away from the mobile base 7 is connected to a self-locking buckle 801, which is adapted to the connecting ring 3.

[0029] The winding mechanism 9 is located at the top center of the movable base 7 and is used to wind up the traction rope 8.

[0030] Workflow Description:

[0031] Step 1, Installation and Initial Adjustment:

[0032] Move the movable base 7 to one edge of the sewage treatment tank using the rollers 704, and adjust the length of the scraper 1 according to the width of the tank. The specific operation is as follows:

[0033] Manually stretch or compress the L-shaped plates 5 on both sides. The springs automatically adapt to the lateral expansion and contraction of the scraper 1. The L-shaped plates 5 are fixed by the sleeve relationship between the U-shaped pull rope 6 and the fixed rod 2, forming a coverage area that matches the width of the pool. Then, move the scraper 1 to the other side of the sewage treatment pool. Then, start the dual-shaft motor 902 to drive the winding reel 904 to rotate, releasing the traction rope 8. Then, pull the traction rope 8 to the other side of the sewage treatment pool. After fastening the self-locking buckle 801 of the traction rope 8 to the appropriate connecting ring 3, the scraper 1 is dropped into the sewage treatment pool. The scraper 1 floats on the liquid surface under the buoyancy of the float 4.

[0034] The second step is to remove the foam:

[0035] The dual-axis motor 902 is controlled to reverse the winding of the traction rope 8, which drives the scraper 1 to move towards the moving base 7. During the movement, the scraper 1 pushes the foam on the liquid surface to gather in the designated area. At the same time, the float 4 maintains the balance of the scraper 1 to prevent it from overturning. (It should be noted that the U-shaped pull rope 6 and the fixing rod 2 can help to puncture the foam during the movement to prevent the foam from gathering.)

[0036] The foam-driving device for sewage treatment tanks achieves free length adjustment through the linkage of the traction rope 8 and the L-shaped plate 5, breaking through the length limitation of the traditional screw 906 and making it suitable for sewage treatment tanks of different sizes. In addition, the length of the telescopic scraper 1 is adjustable to meet the needs of sewage treatment tanks from small to large, solving the problem that the traditional screw 906 drive device is limited by the size of the tank.

[0037] like Figure 4 As shown, in some embodiments, fixing rings 101 are connected to both sides of the back of the scraper 1, and the two ends of the float 4 are embedded inside the fixing rings 101. More specifically, the float 4 is a hollow and sealed bladder made of highly elastic rubber or flexible plastic, filled with air or inert gas to provide buoyancy, so that the scraper 1 floats stably on the surface of the sewage tank, while supporting the weight of the scraper 1. The fixing rings restrict the displacement of the float 4 to prevent foam accumulation or water flow impact from causing the float 4 to shift, ensuring that the scraper 1 always adheres to the liquid surface. The float 4 adopts a modular design. If air leakage or damage occurs, the float 4 can be replaced simply by pulling it out of the fixing rings 101 without disassembling the main body of the scraper 1.

[0038] like Figure 2As shown, in some embodiments, the movable base 7 includes a mounting groove 701, with support rods 702 fixed at the four corners of the top of the mounting groove 701, and a bearing plate 703 fixed at the top of the support rods 702. The scraper 1 is adapted to the size of the mounting groove 701, and a rectangular hole 7011 is constructed in the middle of the interior of the mounting groove 701. More specifically, after use, the scraper 1 is slowly lowered along the edge of the mounting groove 701 so that it is completely embedded in the groove. The rectangular hole 7011 is a reserved hole for the support rod 702 and the connecting ring 3. When the equipment is moved, the scraper 1 is stored in the mounting groove 701, reducing the overall volume and facilitating transportation.

[0039] like Figure 2 As shown, in some embodiments, rollers 704 are installed at the four corners of the bottom surface of the mounting groove 701. The rollers 704 are self-locking casters. More specifically, the multi-directional rotation of the casters allows the equipment to quickly adjust its position, such as moving closer to the edge of the sewage tank or avoiding obstacles, thereby improving work efficiency. The self-locking function ensures that the equipment remains stable during operation, preventing displacement caused by external forces (such as water flow impact or personnel collision), and ensuring that the scraper 1 accurately drives away foam.

[0040] like Figure 2 As shown, in some embodiments, the winding mechanism 9 includes a U-shaped plate 901 fixed to the top of the movable base 7. A dual-axis motor 902 is installed inside the U-shaped plate 901. The two output shafts of the dual-axis motor 902 are connected to mounting rods 903. A winding reel 904 is provided at the end of the mounting rod 903. One end of the traction rope 8 is wound inside the winding reel 904. More specifically, when the dual-axis motor 902 is started to rotate forward, the winding reels 904 on both sides simultaneously wind the traction rope 8. When the dual-axis motor 902 is started to rotate in reverse, the winding reels 904 rotate in the opposite direction and release the traction rope 8. Through the coordinated design of the U-shaped plate 901, the dual-axis motor 902, the mounting rod 903 and the winding reel 904, the winding mechanism 9 achieves efficient synchronous winding and unwinding of the traction rope 8, solving the length limitation problem of the traditional screw 906 drive device.

[0041] like Figure 3As shown, in some embodiments, a square plate 905 is slidably inserted at the end of the mounting rod 903 away from the dual-axis motor 902, and a winding reel 904 is fixed at the end of the square plate 905 away from the mounting rod 903. A strip-shaped hole 9031 is constructed on the side of the mounting rod 903 near the winding reel 904. A screw 906 is fixed on the side wall of the square plate 905 located inside the mounting rod 903. The screw 906 is slidably inserted in the strip-shaped hole 9031, and its end is threadedly connected to a locking nut 907. More specifically, in order to ensure that the traction rope 8 pulls the scraper 1 more stably, the connecting ring 3 connected to the traction rope 8 needs to change when the L-shaped plate 5 protrudes out of the scraper at different lengths. By moving the square plate 905 to change its length protruding out of the mounting rod 903, and rotating the locking nut 907 to fix the square plate 905, the position of the winding reel 904 can be changed with the change of the connecting ring 3. In this way, the winding mechanism 9 can more stably wind and release the traction rope 8.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A foam-repelling device for sewage treatment ponds, characterized in that, include: Scraper (1), the scraper (1) is a hollow cavity with open structure at both ends, the inner side of the scraper (1) is connected with fixed rods (2) at equal intervals, the end of the fixed rod (2) is fixed with a connecting ring (3), and the back of the scraper (1) is provided with a float (4). L-shaped plates (5) are slidably inserted into both ends of the scraper (1). The two L-shaped plates (5) are connected by a spring at one end inside the scraper (1). A U-shaped pull rope (6) is fixed on the side plate of the L-shaped plate (5). The side of the U-shaped pull rope (6) away from the L-shaped plate (5) is sleeved on the surface of the fixing rod (2). A movable base (7) is provided with traction ropes (8) on both sides of the top of the movable base (7). A self-locking buckle (801) is connected to one end of the traction rope (8) away from the movable base (7). The self-locking buckle (801) is adapted to the connecting ring (3). A winding mechanism (9) is located at the top center of the movable base (7) and is used to wind up the traction rope (8).

2. The foam-repelling device for a sewage treatment pond according to claim 1, characterized in that, The scraper (1) has a fixing ring (101) on both sides of its back side, and the float (4) is embedded in the fixing ring (101) at both ends.

3. A foam-repelling device for a sewage treatment pond according to claim 1, characterized in that, The movable base (7) includes a mounting groove (701), and a support rod (702) is fixed at the four corners of the top of the mounting groove (701). A bearing plate (703) is fixed at the top of the support rod (702). The scraper (1) is adapted to the size of the mounting groove (701). A rectangular hole (7011) is constructed in the middle of the interior of the mounting groove (701).

4. A foam-repelling device for a sewage treatment pond according to claim 3, characterized in that, Rollers (704) are installed at the four corners of the bottom surface of the mounting groove (701), and the rollers (704) are self-locking casters.

5. A foam-repelling device for a sewage treatment pond according to claim 1, characterized in that, The winding mechanism (9) includes a U-shaped plate (901) fixed on the top of the movable base (7). A dual-axis motor (902) is installed inside the U-shaped plate (901). The two output shafts of the dual-axis motor (902) are connected to a mounting rod (903). A winding reel (904) is provided at the end of the mounting rod (903). One end of the traction rope (8) is wound inside the winding reel (904).

6. A foam-repelling device for a sewage treatment pond according to claim 5, characterized in that, A square plate (905) is slidably inserted at the end of the mounting rod (903) away from the dual-axis motor (902). The winding reel (904) is fixed at the end of the square plate (905) away from the mounting rod (903). A strip hole (9031) is constructed on the side of the mounting rod (903) near the winding reel (904). A screw (906) is fixed on the side wall of the square plate (905) inside the mounting rod (903). The screw (906) is slidably inserted in the strip hole (9031), and a locking nut (907) is threaded to its end.

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