Scum removing device for sewage treatment

Abstract

The utility model relates to the field of sewage treatment and discloses a scum removal device for sewage treatment, which comprises a sewage treatment tank, a cleaning frame is arranged in the sewage treatment tank, an inclined filter floating plate is fixedly mounted in the cleaning frame, a plurality of filter holes are formed in one side of the inclined filter floating plate at equal intervals in an array manner, and the filter holes are communicated with the cleaning frame. A movable adjusting mechanism connected with the cleaning frame body is arranged on the side of the sewage treatment tank, a connecting circular pipe is fixedly mounted on the top surface of the sewage treatment tank, and a plurality of straight nozzles are mounted on the outer surface, close to the bottom, of the connecting circular pipe at equal intervals in an array manner; a plurality of inclined nozzles are fixedly mounted on the outer surface of the connecting round pipe and located on the side of the straight nozzle, a liquid supply mechanism connected with the connecting round pipe is arranged on one side of the sewage treatment pond, multi-angle flushing of the nozzles is matched with guiding and deslagging of the inclined structures, the problem that scum is difficult to push out thoroughly is solved, and the device is simple in structure, convenient to operate and high in practicability. The scum removing operation efficiency is improved, and residues are reduced.

Description

Technical Field

[0001] This application belongs to the field of wastewater treatment technology, specifically a scum removal device for wastewater treatment. Background Technology

[0002] Wastewater treatment involves using physical, chemical, and biological methods to remove pollutants from wastewater, ensuring it meets prescribed water quality standards and enabling water resource recycling or safe discharge. During wastewater treatment, scum is generated. This scum mainly consists of suspended solids, foam, and some non-degradable organic matter. The reasons for removing scum are as follows: First, scum can affect the normal operation of wastewater treatment facilities, such as clogging pipes and affecting aeration. Second, pollutants in the scum may cause secondary pollution to the environment; if not removed in time, they may be discharged into the environment with the treated water. Third, the presence of scum affects the effectiveness of wastewater treatment, reducing the degree of water purification and hindering subsequent treatment processes. Therefore, to ensure the efficient and stable operation of the wastewater treatment system and improve wastewater treatment quality, specialized scum removal devices are needed to remove the scum.

[0003] For example, the utility model patent with announcement number CN218491531U discloses a scum removal device for a sewage treatment tank, which includes a sewage treatment tank. Two scum removal structures are fixedly installed on the side wall surface of the sewage treatment tank by screws. In this utility model, the sewage continues to flow away through the filter holes at the bottom of a hollow cylinder, while the scum remains in the inner cavity of the hollow cylinder. The hollow cylinder in one of the scum removal structures is lifted upward under the traction of the second slider and the first slider. After the hollow cylinder is lifted, the sewage carried in the scum will be discharged along the filter holes on the hollow cylinder, which also achieves the function of draining the scum. The push plate pushes the scum in the lifted hollow cylinder out of the hollow cylinder, thereby achieving the effect of draining and discharging the scum.

[0004] However, during actual use, it was found that when the pusher plate pushes the scum inside the hollow cylinder out from one end opening, the scum easily clogs the filter holes at the bottom of the hollow cylinder during movement, preventing sewage from flowing smoothly through the filter holes and affecting the efficiency of subsequent scum removal operations. In addition, due to the adhesiveness of the scum, it easily adheres to the inner wall of the hollow cylinder during the pusher plate operation, making it difficult to completely remove the scum. This not only increases the difficulty of cleaning but may also result in some scum remaining. Therefore, a scum removal device for sewage treatment is provided. Utility Model Content

[0005] The purpose of this application is to provide a scum removal device for wastewater treatment in order to solve the problems mentioned above.

[0006] The technical solution adopted in this application is as follows: A scum removal device for sewage treatment includes a sewage treatment tank. A cleaning frame is provided inside the sewage treatment tank. An inclined filter float is fixedly installed inside the cleaning frame. Multiple filter holes are arranged in an evenly spaced array on one side of the inclined filter float. A movable adjustment mechanism connected to the cleaning frame is provided on the side of the sewage treatment tank. A connecting round pipe is fixedly installed on the top surface of the sewage treatment tank. Multiple direct nozzles are arranged in an evenly spaced array near the bottom outer surface of the connecting round pipe. Multiple inclined nozzles are fixedly installed on the outer surface of the connecting round pipe next to the direct nozzles. A liquid supply mechanism connected to the connecting round pipe is provided on one side of the sewage treatment tank.

[0007] In a preferred embodiment, the liquid supply mechanism includes a liquid storage tank, a liquid supply pump, and a flexible connecting delivery pipe. The liquid storage tank is fixedly installed at the front end of the sewage treatment tank, and the liquid supply pump is fixedly installed on the top surface of the liquid storage tank. The inlet end of the liquid supply pump extends into the interior of the liquid storage tank, and the outlet end of the liquid supply pump is fixedly installed with a flexible connecting delivery pipe. The end of the flexible connecting delivery pipe away from the liquid supply pump is welded to the outer surface of the connecting round pipe.

[0008] In a preferred embodiment, the movable adjustment mechanism includes a fixed base, a lead screw, a threaded slide, a limiting hole, an electric push rod, and an L-shaped connecting plate. Fixed bases are fixedly installed on the left and right sides of the sewage treatment tank, respectively. The lead screw is rotatably connected to the inside of the fixed base through a bearing. One end of the lead screw extends to the outside of the fixed base and is connected to the drive mechanism. The outer surface of the lead screw is threadedly connected to the threaded slide. A limiting hole is formed on the top surface of the fixed base. The top end of the threaded slide passes through the inside of the limiting hole. An electric push rod is fixedly installed on the top end of the threaded slide. An L-shaped connecting plate is fixedly installed on the telescopic end of the electric push rod. The end of the L-shaped connecting plate away from the electric push rod is fixed to the top surface of the cleaning frame.

[0009] In a preferred embodiment, a scum discharge pipe is fixedly installed on one side of the cleaning frame, and the end of the scum discharge pipe away from the cleaning frame extends to the outside of the sewage treatment tank. An electrically controlled valve is fixedly installed on the outer surface of the end of the scum discharge pipe extending to the outside of the sewage treatment tank.

[0010] In a preferred embodiment, an arc-shaped baffle is fixedly installed on the inner bottom surface of the cleaning frame in front of the inclined filter plate.

[0011] In a preferred embodiment, a transparent window for observing the liquid level is fixedly installed on the front side of the liquid storage tank, and an injection pipe is fixedly installed on the top surface of the liquid storage tank.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0013] 1. In this application, due to the adoption of the above-mentioned scheme, the liquid supply pump delivers the surfactant solution in the storage tank to the connecting round pipe through the flexible connection conveying pipe, and then sprays it out by the straight nozzle and the inclined nozzle to thoroughly wash the scum on the inner wall, bottom and inclined filter plate of the cleaning frame. This can not only prevent the filter holes from clogging, but also dilute and disperse the scum. The thoroughly washed scum flows from the high point of the cleaning frame to the scum discharge pipe at the low point. At this time, the electric control valve is opened, and the scum is discharged from the sewage treatment tank under the action of the flushing liquid. This device solves the problem of scum being difficult to completely remove by using multi-angle flushing nozzles and inclined structure to guide the discharge of scum, improves the efficiency of scum removal, reduces residue and reduces cleaning difficulty. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the cleaning frame structure of this application;

[0016] Figure 3 This is a schematic diagram of the inclined filter float structure of this application;

[0017] Figure 4 This is a schematic diagram of the scum discharge pipeline structure in this application;

[0018] Figure 5 This is a schematic diagram of the threaded slide structure of this application.

[0019] The diagram shows: 1. Wastewater treatment tank; 2. Cleaning frame; 3. Inclined filter float; 4. Filter holes; 5. Moving adjustment mechanism; 501. Fixed base; 502. Screw rod; 503. Threaded slide; 504. Limiting hole; 505. Electric push rod; 506. L-shaped connecting plate; 6. Connecting round pipe; 7. Straight nozzle; 8. Inclined nozzle; 9. Liquid supply mechanism; 901. Liquid storage tank; 902. Liquid supply pump; 903. Flexible connection conveying pipe; 10. Scum discharge pipe; 11. Arc-shaped baffle; 12. Liquid level observation transparent window. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] refer to Figures 1-5As shown, a scum removal device for sewage treatment includes a sewage treatment tank 1. A cleaning frame 2 is installed inside the sewage treatment tank 1. An inclined filter float 3 is fixedly installed inside the cleaning frame 2. Multiple filter holes 4 are evenly spaced on one side of the inclined filter float 3. An arc-shaped baffle 11 is fixedly installed on the bottom surface of the cleaning frame 2 in front of the inclined filter float 3. A movable adjustment mechanism 5 connected to the cleaning frame 2 is provided on the side of the sewage treatment tank 1. Through the cooperation of the inclined filter float 3 and the filter holes 4, floating scum generated during sewage treatment can be filtered and intercepted, while allowing sewage to continue to be treated through the filter holes 4, ensuring the continuity of sewage treatment. The arc-shaped baffle 11 prevents scum from moving randomly within the cleaning frame 2, facilitating the centralized collection of scum and improving cleaning efficiency.

[0022] refer to Figures 1-5 As shown, the movable adjustment mechanism 5 includes a fixed base 501, a lead screw 502, a threaded slide 503, a limiting hole 504, an electric push rod 505, and an L-shaped connecting plate 506. Fixed bases 501 are fixedly installed on the left and right sides of the sewage treatment tank 1, respectively. The lead screw 502 is rotatably connected to the inside of the fixed base 501 through a bearing. One end of the lead screw 502 extends to the outside of the fixed base 501 and is connected to the drive mechanism. The drive mechanism consists of a motor, a synchronous pulley, and a synchronous belt, which can drive the two lead screws 502 to rotate simultaneously. The drive mechanism drives the lead screws 502 to rotate, which, in conjunction with the threaded slide 503, facilitates the subsequent horizontal movement and adjustment of the cleaning frame 2. The position of the cleaning frame 2 can be flexibly adjusted to adapt to the scum cleaning needs of different positions, thereby improving the applicability of the device.

[0023] refer to Figures 1-5 As shown, a threaded slide block 503 is threadedly connected to the outer surface of the lead screw 502. A limiting hole 504 is opened on the top surface of the fixed seat 501. The top end of the threaded slide block 503 passes through the interior of the limiting hole 504. An electric push rod 505 is fixedly installed on the top end of the threaded slide block 503. An L-shaped connecting plate 506 is fixedly installed on the telescopic end of the electric push rod 505. The end of the L-shaped connecting plate 506 away from the electric push rod 505 is fixed to the top surface of the cleaning frame 2. The height of the cleaning frame 2 can be adjusted by the electric push rod 505. Combined with the horizontal movement function, the cleaning frame 2 can move flexibly in three-dimensional space, which is convenient for precise cleaning of scum at different depths and in different areas. The limiting hole 504 plays a limiting and guiding role for the threaded slide block 503, ensuring the stability of the movement.

[0024] refer to Figures 1-5As shown, a connecting circular pipe 6 is fixedly installed on the top surface of the sewage treatment tank 1. Multiple direct nozzles 7 are evenly arrayed near the bottom outer surface of the connecting circular pipe 6. Multiple inclined nozzles 8 are fixedly installed on the outer surface of the connecting circular pipe 6 on the side of the direct nozzles 7. A liquid supply mechanism 9 connected to the connecting circular pipe 6 is provided on one side of the sewage treatment tank 1. The liquid supply mechanism 9 facilitates the delivery of liquid to the connecting circular pipe 6, which is then sprayed out through the direct nozzles 7 and inclined nozzles 8. This can wash away the scum on the inner wall and bottom of the cleaning frame 2. On the one hand, it can help clean the scum attached to the inclined filter plate 3 and prevent the filter holes 4 from clogging. On the other hand, it can dilute and disperse the scum, making it easier to collect and discharge it later.

[0025] refer to Figures 1-5 As shown, the liquid supply mechanism 9 includes a liquid storage tank 901, a liquid supply pump 902, and a flexible connecting delivery pipe 903. The liquid storage tank 901 is fixedly installed at the front end of the sewage treatment tank 1. A liquid level observation transparent window 12 is fixedly installed on the front side of the liquid storage tank 901, and an injection pipe is fixedly installed on the top surface of the liquid storage tank 901. The liquid storage tank 901 can store an active agent solution. The active agent solution can reduce the surface tension of water, making it easier for water to wet the surface of scum, enhancing penetration and emulsification, and making it easier for scum to be washed away. At the same time, it can emulsify the organic components such as oil in the scum, dispersing them in the water. The liquid level observation transparent window 12 allows operators to monitor the liquid level in real time and replenish the liquid in a timely manner. The injection pipe facilitates the addition of different types of flushing liquids to meet diverse cleaning needs.

[0026] refer to Figures 1-5 As shown, a liquid supply pump 902 is fixedly installed on the top surface of the liquid storage tank 901. The inlet end of the liquid supply pump 902 extends into the interior of the liquid storage tank 901, and a flexible connecting delivery pipe 903 is fixedly installed on the outlet end of the liquid supply pump 902. The end of the flexible connecting delivery pipe 903 away from the liquid supply pump 902 is welded to the outer surface of the connecting round pipe 6. The liquid supply pump 902 provides power for the delivery of the surfactant solution, ensuring that the rinsing liquid can be stably and continuously delivered to the nozzle. The flexible connecting delivery pipe 903 has a certain degree of flexibility and can adapt to the relative position changes between the connecting round pipe 6 and the liquid storage tank 901, ensuring the reliability of liquid delivery.

[0027] refer to Figures 1-5As shown, a scum discharge pipe 10 is fixedly installed on one side of the cleaning frame 2. The end of the scum discharge pipe 10 away from the cleaning frame 2 extends to the outside of the sewage treatment tank 1. An electrically controlled valve is fixedly installed on the outer surface of the end of the scum discharge pipe 10 extending to the outside of the sewage treatment tank 1. The side of the cleaning frame 2 closest to the scum discharge pipe 10 is lower, while the other side is higher, so that the scum after rinsing can be discharged through the scum discharge pipe 10. The electrically controlled valve can precisely control the opening and closing of the scum discharge pipe 10. When the scum in the cleaning frame 2 reaches a certain amount, the valve is opened, so that the scum is pushed by the rinsing liquid and discharged from the sewage treatment tank 1 through the scum discharge pipe 10, realizing automated scum discharge and reducing manual labor intensity. The scum discharge pipe 10 can be a stainless steel flexible hose.

[0028] The implementation principle of the scum removal device for sewage treatment in this application is as follows: During the sewage treatment process, scum floats into the sewage treatment tank 1. At this time, the drive mechanism in the moving adjustment mechanism 5 drives the lead screw 502 to rotate, so that the threaded slide 503 moves on the lead screw 502. At the same time, the electric push rod 505 adjusts the height of the cleaning frame 2, so that the cleaning frame 2 enters the sewage treatment tank 1 and moves flexibly. When the cleaning frame 2 moves, the scum floating on the upper layer in the sewage treatment tank 1 is intercepted in the cleaning frame 2 through the cooperation of the inclined filter plate 3 and the filter hole 4. The sewage flows out through the filter hole 4 to complete the separation.

[0029] When it is necessary to clean the scum inside the frame 2, the liquid supply pump 902 in the liquid supply mechanism 9 sends the surfactant solution in the storage tank 901 to the connecting round pipe 6 through the flexible connection delivery pipe 903, and then sprays it out by the straight nozzle 7 and the inclined nozzle 8 to thoroughly wash the scum on the inner side wall, bottom and inclined filter plate 3 of the cleaning frame 2. This can prevent the filter holes 4 from clogging and dilute and disperse the scum. The thoroughly washed scum flows from the high point of the cleaning frame 2 to the low point of the scum discharge pipe 10. At this time, the electric control valve is opened, and the scum is discharged from the sewage treatment tank 1 under the action of the flushing liquid. This device solves the problem of scum being difficult to completely remove by using multi-angle flushing nozzles and inclined structure to guide the discharge of scum, improves the efficiency of scum removal, reduces residue, reduces cleaning difficulty, and eliminates the need for frequent manual auxiliary treatment, thus achieving efficient and automated scum cleaning.

[0030] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A scum removal device for sewage treatment, comprising a sewage treatment tank (1), characterized in that: The sewage treatment tank (1) is equipped with a cleaning frame (2) inside. An inclined filter float (3) is fixedly installed inside the cleaning frame (2). Multiple filter holes (4) are arranged in an evenly spaced array on one side of the inclined filter float (3). A movable adjustment mechanism (5) connected to the cleaning frame (2) is provided on the side of the sewage treatment tank (1). A connecting round pipe (6) is fixedly installed on the top surface of the sewage treatment tank (1). Multiple direct nozzles (7) are arranged in an evenly spaced array near the bottom outer surface of the connecting round pipe (6). Multiple inclined nozzles (8) are fixedly installed on the outer surface of the connecting round pipe (6) on the side of the direct nozzles (7). A liquid supply mechanism (9) connected to the connecting round pipe (6) is provided on one side of the sewage treatment tank (1).

2. A scum removal device for sewage treatment as claimed in claim 1, characterized in that: The liquid supply mechanism (9) includes a liquid storage tank (901), a liquid supply pump (902), and a flexible connecting pipe (903). The liquid storage tank (901) is fixedly installed at the front end of the sewage treatment tank (1). The liquid supply pump (902) is fixedly installed on the top surface of the liquid storage tank (901). The inlet end of the liquid supply pump (902) extends into the interior of the liquid storage tank (901). The outlet end of the liquid supply pump (902) is fixedly installed with a flexible connecting pipe (903). The end of the flexible connecting pipe (903) away from the liquid supply pump (902) is welded to the outer surface of the connecting round pipe (6).

3. The scum removal device for sewage treatment according to claim 1, characterized by: The movable adjustment mechanism (5) includes a fixed seat (501), a lead screw (502), a threaded slide (503), a limiting hole (504), an electric push rod (505), and an L-shaped connecting plate (506). Fixed seats (501) are fixedly installed on the left and right sides of the sewage treatment tank (1). The lead screw (502) is rotatably connected to the inside of the fixed seat (501) via a bearing. One end of the lead screw (502) extends to the outside of the fixed seat (501) and is connected to the drive mechanism. A threaded slide (503) is threaded onto the outer surface of the lead screw (502). A limiting hole (504) is opened on the top surface of the fixed seat (501). The top end of the threaded slide (503) passes through the limiting hole (504). An electric push rod (505) is fixedly installed on the top end of the threaded slide (503). An L-shaped connecting plate (506) is fixedly installed on the telescopic end of the electric push rod (505). The end of the connecting plate (506) away from the electric push rod (505) is fixed to the top surface of the cleaning frame (2).

4. The scum removal device for sewage treatment according to claim 1, characterized by: A scum discharge pipe (10) is fixedly installed on one side of the cleaning frame (2). The end of the scum discharge pipe (10) away from the cleaning frame (2) extends to the outside of the sewage treatment tank (1). An electric control valve is fixedly installed on the outer surface of the end of the scum discharge pipe (10) extending to the outside of the sewage treatment tank (1).

5. The scum removal device for sewage treatment according to claim 1, characterized by: An arc-shaped baffle (11) is fixedly installed on the inner bottom surface of the cleaning frame (2) in front of the inclined filter float (3).

6. A scum removal device for sewage treatment as defined in claim 2, characterized in that: The front side of the liquid storage tank (901) is fixedly provided with a liquid level observation transparent window (12), and the top surface of the liquid storage tank (901) is fixedly provided with a liquid filling pipeline.

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