Foreign matter cleaning device for secondary sedimentation tank of sewage treatment plant

Abstract

The utility model provides a sewage treatment plant secondary sedimentation tank foreign matter cleaning device which comprises a rotating frame rotating on a secondary sedimentation tank, a movable slag suction device arranged below the rotating frame and used for collecting floating objects on the secondary sedimentation tank, and an algae removal device arranged below the end of the rotating frame and used for removing algae on the secondary sedimentation tank. A first brush and a second brush which move relatively are arranged on the two sides of a fixing frame in the algae removal device, and the first brush and the second brush abut against the two sides of the overflow weir respectively. Automatic cleaning of foreign matters in the secondary sedimentation tank is realized, the requirement of manual operation is reduced, the labor intensity is reduced, and the working efficiency is improved. Due to the automatic cleaning process, human errors are reduced, and more consistent cleaning quality and frequency are ensured.

Description

Technical Field

[0001] The utility model relates to the field of ecological protection technologies, and particularly relates to a foreign matter cleaning device for a secondary sedimentation tank of a sewage treatment plant. Background Technique

[0002] At present, most of the secondary sedimentation tanks in sewage treatment plants are circular and are set outdoors. After the sewage is treated in the previous stage, it still contains certain nitrogen and phosphorus components. In summer or when the temperature is relatively high, aquatic algae are likely to grow on the surface of the secondary sedimentation tank, the overflow weir, and the triangular weir area, and moss will form and adhere to the surface of the tank body. The excessive growth of moss and algae will affect the normal operation of the outlet weir and the triangular weir, and even block their inlet and outlet channels. Therefore, it is crucial to clean and regularly maintain these facilities. The existing conventional treatment method is to set a scraping plate on the sludge scraper, add sodium hypochlorite to the outlet trough of the secondary sedimentation tank, and supplement it with manual cleaning 1-2 times a week. However, when the sludge scraper operates, the algae will gather around the sludge scraper along with the scraping plate, resulting in the scraping plate on the sludge scraper being unable to effectively remove the floating objects on the water surface. At the same time, because these facilities are usually large in scale and difficult to clean, a large number of workers are required for cleaning, which consumes a lot of manpower and time. During the cleaning work, workers need to go into the water or climb, which is prone to safety accidents. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a foreign matter cleaning device for a secondary sedimentation tank of a sewage treatment plant to solve the problems in the above background technique.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: it includes a rotating frame rotating on the secondary sedimentation tank. A moving slag suction device is arranged below the rotating frame for collecting the floating objects on the secondary sedimentation tank. An algae removal device is arranged below the end of the rotating frame. On both sides of the fixed frame in the algae removal device, a first brush and a second brush that move relative to each other are arranged, and the first brush and the second brush respectively abut against both sides of the overflow weir.

[0005] Preferably, a track is fixedly arranged below the rotating frame, and the end of the slag suction device abuts against the track and moves through a traveling mechanism. A negative pressure adsorption port is arranged at the bottom of the slag suction device, and the negative pressure adsorption port is flush with the liquid level.

[0006] Preferably, the fixed seat in the algae removal device is fixed at the bottom of the rotating frame, and a plurality of top pushing mechanisms are arranged between the fixed frame and the fixed seat.

[0007] Preferably, a bidirectional lead screw and a guide post are fixedly arranged between both sides of the fixed frame, and the ends of the first brush and the second brush are connected to the bidirectional lead screw and the guide post.

[0008] Preferably, both ends of the bidirectional lead screw are provided with left - hand and right - hand threads, the ends of the first brush and the second brush are threadedly connected to the bidirectional lead screw through a silk sleeve, and the ends of the first brush and the second brush abut against the guide post and slide through a sliding sleeve.

[0009] Preferably, a motor is fixedly installed on the fixing frame, and the motor drives the bidirectional lead screw to rotate through a sprocket and a chain.

[0010] Preferably, a water outlet is provided on the outside of the secondary sedimentation tank, overflow weirs are arranged on both sides of the water outlet, a triangular weir plate is fixedly installed on one side of the overflow weir, the first brush abuts against the triangular weir plate, and the second brush abuts against the triangular weir plate and the overflow weir.

[0011] The utility model provides a device for cleaning foreign matters in the secondary sedimentation tank of a sewage treatment plant, and the beneficial effects are as follows:

[0012] 1. Automatic cleaning ability: The device realizes the automatic cleaning of foreign matters in the secondary sedimentation tank, reduces the need for manual operation, reduces the labor intensity, and improves the work efficiency. The automatic cleaning process reduces human errors and ensures more consistent cleaning quality and frequency.

[0013] 2. Comprehensive coverage and flexibility: The combined use of the rotating frame and the traveling mechanism ensures that the slag suction device can cover the entire surface of the secondary sedimentation tank, effectively cleaning floating objects and algae. The flexible moving design of the algae removal device, through the cooperation of the pushing mechanism and the bidirectional lead screw, ensures the comprehensive cleaning of the triangular weir plate and the overflow weir.

[0014] 3. High cleaning efficiency: The negative pressure adsorption system of the slag suction device can quickly collect and separate impurities on the water surface, discharge clean water after filtration, and reduce the impact on the subsequent treatment stage. The precise movement of the first brush and the second brush, combined with the drive of the motor and the sprocket chain, realizes the effective removal of moss and dirt on the triangular weir plate and the overflow weir. Description of the Drawings

[0015] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0016] Figure 1 is the front view of the overall structure of the present utility model;

[0017] Figure 2 is the front view of the algae removal device of the present utility model;

[0018] In the figure: secondary sedimentation tank 1; water outlet 101; baffle 102; overflow weir 103; triangular weir plate 104; rotating frame 2; track 3; traveling mechanism 4; slag suction device 5; algae removal device 6; fixed seat 601; pushing mechanism 602; fixing frame 603; bidirectional lead screw 604; first brush 605; second brush 606; motor 607; chain 608; guide post 609. Detailed Embodiments

[0019] As Figures 1-2As shown in the figure, a foreign object cleaning device for the secondary sedimentation tank of a sewage treatment plant includes a rotating frame 2 rotating on the secondary sedimentation tank 1. A moving slag suction device 5 is arranged below the rotating frame 2 for collecting floating substances on the secondary sedimentation tank 1. A algae removal device 6 is arranged below the end of the rotating frame 2. On both sides of the fixed frame 603 in the algae removal device 6, a first brush 605 and a second brush 606 move relatively. The first brush 605 and the second brush 606 respectively abut against both sides of the overflow weir 103. There is a water outlet 101 outside the secondary sedimentation tank 1. Overflow weirs 103 are arranged on both sides of the water outlet 101. A triangular weir plate 104 is fixedly arranged outside the overflow weir 103. Moss will be generated when overflowing on the triangular weir plate 104 and the overflow weir 103, and at the same time, algae will be generated on the water surface of the secondary sedimentation tank 1. Therefore, when the rotating frame 2 rotates, the moving slag suction device 5 is used to clean the algae on the water surface, and at the same time, the first brush 605 and the second brush 606 in the algae removal device 6 can abut against the overflow weir 103 and the triangular weir plate 104 to clean the moss.

[0020] The rotating frame 2 is installed above the secondary sedimentation tank and can rotate around an axis to ensure covering the entire surface of the secondary sedimentation tank.

[0021] The moving slag suction device 5 is installed below the rotating frame and moves as the rotating frame rotates. Its function is to collect and remove floating substances and algae on the surface of the secondary sedimentation tank. This process involves a suction system that can suck in impurities and transport them through pipes to a collection container or a further treatment system.

[0022] The algae removal device 6 is installed below the end of the rotating frame. The first brush and the second brush are designed to move relatively on both sides of the overflow weir 103 for removing moss attached to the overflow weir and the triangular weir plate 104.

[0023] Preferably, a track 3 is fixedly arranged below the rotating frame 2. The end of the slag suction device 5 abuts against the track 3 through a traveling mechanism 4 and moves. A negative pressure adsorption port is arranged at the bottom of the slag suction device 5, and the negative pressure adsorption port is flush with the liquid level. The traveling mechanism 4 can drive the slag suction device 5 to move on the track 3. Through the rotation of the rotating frame 2, the slag suction device 5 can cover the entire secondary sedimentation tank 1. The slag suction device 5 is connected to a negative pressure adsorption system and can suck the algae on the liquid surface and filter them to achieve the purpose of cleaning.

[0024] The track is fixed below the rotating frame 2, providing a fixed path for the traveling mechanism 4 to ensure that the slag suction device 5 can move smoothly and accurately on the surface of the secondary sedimentation tank 1.

[0025] The traveling mechanism is connected to the end of the slag suction device 5 and moves by abutting against the track 3.

[0026] This mechanism can drive the slag suction device 5 to move forward or backward along the track 3. Combining with the rotational movement of the rotating frame 2, the slag suction device 5 can cover the entire surface of the secondary sedimentation tank 1.

[0027] The bottom of the slag suction device 5 is provided with a negative pressure suction port flush with the liquid level. When the slag suction device 5 moves to the position where the floating objects or algae are located, the negative pressure suction port is activated to generate suction to suck these substances in.

[0028] The slag suction device 5 is connected to the negative pressure suction system. The inhaled algae and impurities will be intercepted by the filtration system, and the cleaned water will be released back into the secondary sedimentation tank 1, while the impurities will be collected for subsequent treatment or disposal.

[0029] Preferably, the fixed seat 601 in the algae removal device 6 is fixed to the bottom of the rotating frame 2, and a plurality of top-pushing mechanisms 602 are provided between the fixed frame 603 and the fixed seat 601. The top-pushing mechanism 602 is an electric push rod, which can drive the fixed frame 603 to move, so as to drive the first brush 605 and the second brush 606 to move and abut against the triangular weir plate 104 and the overflow weir 103.

[0030] The fixed seat is directly installed at the bottom of the rotating frame 2, serving as the basic structure of the algae removal device, providing support and positioning points. The fixed frame is installed on the fixed seat 601, used to carry and guide the first brush 605 and the second brush 606. The position of the fixed frame can be adjusted by the top-pushing mechanism 602 as needed.

[0031] When the rotating frame 2 rotates to a specific position, the electric push rod is activated to push the fixed frame 603 to move towards or away from the triangular weir plate 104 and the overflow weir 103, so as to adjust the positions of the first brush 605 and the second brush 606 to ensure that they can effectively contact and clean these areas.

[0032] The two groups of brushes are respectively designed to abut against both sides of the triangular weir plate 104 and the overflow weir 103. When the fixed frame 603 is pushed by the top-pushing mechanism 602, the brushes are pressed against the weir plate and the weir wall, and the attached algae and dirt are removed by the brushing action.

[0033] Preferably, a bidirectional lead screw 604 and a guide post 609 are fixedly arranged between both sides of the fixed frame 603, and the ends of the first brush 605 and the second brush 606 are connected to the bidirectional lead screw 604 and the guide post 609. Rotating the bidirectional lead screw 604 can drive the two groups of first brushes 605 and second brushes 606 at both ends to move relatively, and the guide post 609 can ensure the smooth movement thereof.

[0034] The thread of the bidirectional lead screw is divided into two parts with opposite directions at the midpoint. When the bidirectional lead screw rotates, the two sliders installed on it will move in opposite directions. In this device, the ends of the first brush 605 and the second brush 606 are connected to the bidirectional lead screw 604, so when the bidirectional lead screw rotates, the two groups of brushes will move in opposite directions and abut against both sides of the triangular weir plate 104 and the overflow weir 103 respectively for effective brushing.

[0035] The main function of the guide post is to provide linear guidance, ensuring that the brush remains straight during movement and preventing it from deviating or swinging during movement. This helps to improve the cleaning effect and extend the service life of the brush. In this device, the guide post 609 is also connected to the ends of the first brush 605 and the second brush 606, and they play a guiding and supporting role when the brush moves, ensuring the smooth movement of the brush and avoiding unnecessary friction or resistance.

[0036] When the pushing mechanism 602 drives the fixed frame 603 to approach the triangular weir plate 104 and the overflow weir 103, the first brush 605 and the second brush 606 also approach the cleaning target accordingly.

[0037] Subsequently, the bidirectional lead screw 604 starts to rotate. Through the threaded connection between the lead screw and the brush, the first brush 605 and the second brush 606 move in opposite directions along the guide post 609 respectively, realizing the brushing of the weir plate and the weir wall.

[0038] The guide post 609 ensures the smoothness and linearity of this process, preventing the brush from vibrating or deviating unnecessarily during the cleaning process, thereby improving the cleaning efficiency and effect.

[0039] Both ends of the bidirectional lead screw 604 are provided with left - hand and right - hand threads. The ends of the first brush 605 and the second brush 606 are threadedly connected to the bidirectional lead screw 604 through silk sleeves, and the ends of the first brush 605 and the second brush 606 slide against the guide post 609 through sliding sleeves.

[0040] Preferably, a motor 607 is fixedly installed on the fixed frame 603, and the motor 607 drives the bidirectional lead screw 604 to rotate through a sprocket and a chain 608.

[0041] Preferably, a water outlet 101 is provided outside the secondary sedimentation tank 1, the overflow weir 103 is arranged on both sides of the water outlet 101, a triangular weir plate 104 is fixedly installed on one side of the overflow weir 103, the first brush 605 abuts against the triangular weir plate 104, and the second brush 606 abuts against the triangular weir plate 104 and the overflow weir 103.

[0042] Further preferably, a filter screen is provided at the water outlet 101 for blocking the cleaned moss or foreign objects. After the cleaning operation is completed, the filter screen can be fished up for cleaning to complete the cleaning operation.

[0043] The above - mentioned embodiments are only the preferred technical solutions of the present utility model and should not be regarded as limitations on the present utility model. The protection scope of the present utility model should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present utility model.

Claims

1. A foreign body cleaning device for a secondary sedimentation tank in a sewage treatment plant, comprising a rotating frame (2) rotating on the secondary sedimentation tank (1), characterized in that: A movable slag suction device (5) is provided below the rotating frame (2) for collecting floating objects on the secondary sedimentation tank (1). An algae removal device (6) is provided below the end of the rotating frame (2). A first brush (605) and a second brush (606) that can move relatively are provided on both sides of a fixed frame (603) in the algae removal device (6). The first brush (605) and the second brush (606) are respectively pressed against both sides of an overflow weir (103).

2. According to claim 1, a foreign body cleaning device for a secondary sedimentation tank of a sewage treatment plant is characterized by: A track (3) is fixedly provided below the rotating frame (2), and the end of the slag suction device (5) moves against the track (3) via a walking mechanism (4). A negative pressure adsorption port is provided at the bottom of the slag suction device (5), and the negative pressure adsorption port is flush with the liquid surface.

3. According to claim 1, a foreign body cleaning device for a secondary sedimentation tank of a sewage treatment plant is characterized by: The fixed seat (601) in the algae removal device (6) is fixed to the bottom of the rotating frame (2), and the fixed frame (603) and the fixed seat (601) are provided with a plurality of pushing mechanisms (602).

4. According to claim 1, a foreign body cleaning device for a secondary sedimentation tank of a sewage treatment plant is characterized by: A bidirectional screw rod (604) and a guide column (609) are fixedly arranged between the two sides of the fixing frame (603), and the ends of the first brush (605) and the second brush (606) are connected to the bidirectional screw rod (604) and the guide column (609).

5. According to claim 4, a foreign body cleaning device for a secondary sedimentation tank of a sewage treatment plant is characterized in that: Both ends of the bidirectional screw rod (604) are provided with forward and reverse threads, the ends of the first brush (605) and the second brush (606) are threadedly connected to the bidirectional screw rod (604) via a thread sleeve, and the ends of the first brush (605) and the second brush (606) slide against the guide column (609) via a sliding sleeve.

6. According to claim 4, a foreign body cleaning device for a secondary sedimentation tank of a sewage treatment plant is characterized by: A motor (607) is fixedly mounted on the fixed frame (603), and the motor (607) is connected via a sprocket and a chain (608) to drive the bidirectional screw rod (604) to rotate.

7. According to claim 1, a foreign body cleaning device for a secondary sedimentation tank of a sewage treatment plant is characterized by: A water outlet (101) is provided on the outside of the secondary sedimentation tank (1), an overflow weir (103) is provided on both sides of the water outlet (101), a triangular weir plate (104) is fixedly provided on one side of the overflow weir (103), a first brush (605) abuts against the triangular weir plate (104), and a second brush (606) abuts against the triangular weir plate (104) and the overflow weir (103).

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