SBR (Sequencing Batch Reactor) sewage treatment equipment

Abstract

The utility model discloses SBR (Sequencing Batch Reactor) sewage treatment equipment, which particularly relates to the technical field of sewage treatment and comprises a box body, an aeration disc is arranged at the bottom in the box body, a top cover is arranged at the top of the box body, a water inlet pipe is fixed at the top of the top cover, and a blow-off pipe is further arranged on one side of the bottom of the box body. A blow-off pipe is arranged in the box body, a blow-off pump is connected to the end part of the blow-off pipe, a sewage suction plate is arranged in the box body, an inlet is formed in one side of the sewage suction plate, an air blowing pipe is further arranged on one side, opposite to the sewage suction plate, in the box body, and an air outlet is formed in one side of the air blowing pipe. By inputting gas into the air blowing pipe and discharging the gas from the outlet in one side of the air blowing pipe, the floating objects on the top of the water surface can be blown to move, the floating objects on the surface of clear water can be sucked out conveniently, the problem that the floating objects enter the water decanting tank to block the water decanting tank is avoided, and continuous use of the water decanting mechanism is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an SBR wastewater treatment device. Background Technology

[0002] SBR wastewater treatment technology is an advanced biological treatment process widely used in various wastewater treatment fields, especially in treating small-scale, intermittently discharged wastewater. The core of SBR wastewater treatment technology is the SBR reactor, which integrates equalization, primary sedimentation, biodegradation, and secondary sedimentation into one tank, without a sludge return system. The SBR process achieves efficient wastewater treatment by controlling the five basic steps of influent, aeration, sedimentation, effluent discharge, and standby in a time sequence.

[0003] After the wastewater enters the tank of the SBR wastewater treatment device, it undergoes aeration and sedimentation. Floating matter accumulates on the surface of the clarified liquid. The clean water is discharged from the tank through the decanter inside the tank. During the process of the clean water flowing into the decanter, floating matter is carried into the decanter, resulting in the accumulation of dirt inside the decanter. Since the decanter is located inside the tank, the dirt inside the decanter is difficult to clean. After long-term use, the decanter is prone to blockage, affecting the discharge of clean water. Utility Model Content

[0004] The purpose of this invention is to provide an SBR wastewater treatment device to address the aforementioned shortcomings in the technology.

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

[0006] An SBR wastewater treatment device includes a tank. An aeration disc is installed at the bottom of the tank. A top cover is installed on the top of the tank, and an inlet pipe is fixed to the top of the top cover. A drain pipe is also installed on one side of the bottom of the tank, and a drain pump is connected to the end of the drain pipe. A suction plate is installed inside the tank, with an inlet on one side of the suction plate. An air blowing pipe is also installed inside the tank on the side opposite to the suction plate, with an air outlet on one side of the air blowing pipe. The air outlet and the inlet are at the same horizontal plane. A suction pipe is connected to the top of the suction plate, and a suction pump is connected to the extension end of the suction pipe. An air inlet pipe is connected to the end of the air blowing pipe, and a second air pump is connected to the end of the air inlet pipe. A decanting mechanism is installed on one side of the air blowing pipe.

[0007] Preferably, the decanting mechanism includes a guide rail disposed inside the box body, a decanting tank slidably disposed on one side of the guide rail, decanting conduits disposed at both ends of the decanting tank, a clean water pipe connected to the top of the decanting tank, the end of the clean water pipe extending to the outside of the box body and connected to a water pump, and a clean water pool disposed below the water pump.

[0008] Preferably, the decanting mechanism further includes a hollow plate fixed to the top of the decanting tank, a counterweight is provided at the bottom of the hollow plate, a float is fixed to one side of the counterweight, a connecting pipe is connected to the top of the float, the top of the connecting pipe is connected to the bottom of the hollow plate, and a slip ring is fixed to the outer wall of the decanting tank, the slip ring being sleeved on the outside of the guide rail.

[0009] Preferably, the top of the hollow plate is also connected to an air supply pipe, which extends upward and passes through the top cover, and the extended end of the air supply pipe is connected to a first air pump.

[0010] Preferably, a sewage pump is connected to the end of the inlet pipe, and a sewage collection tank is provided on one side of the sewage pump.

[0011] Preferably, an aeration pipe is provided at the bottom of the aeration disc, an air pressure pipe is connected to the end of the aeration pipe, and an aeration pump is connected to the end of the air pressure pipe.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] With its air-blowing pipe and suction plate, the air-blowing pipe and suction plate are positioned at the same level inside the tank. Before decanting, air is introduced into the air-blowing pipe, which then exits from an outlet on one side and blows towards the top of the water surface in the tank. This helps to move floating debris on the surface of the water. The floating debris moves to the inlet side of the suction plate and finally enters the suction plate, making it easier to suck out the floating debris from the surface of the clean water. This avoids the problem of floating debris entering the decanting tank and clogging it, reducing the failure rate and ensuring the continuous use of the decanting mechanism. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the top cover of this utility model after it is opened;

[0017] Figure 3 This is a perspective view of the aeration device and decanting mechanism of this utility model;

[0018] Figure 4 This is an exploded view of the decanting mechanism of this utility model;

[0019] Figure 5 for Figure 4 Enlarged view of section A in the middle;

[0020] Figure 6 This is a schematic diagram of the structure of the suction plate and suction pipe of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Top cover; 2. Tank body; 3. Sewage pump; 4. Sewage collection tank; 5. Inlet pipe; 6. Water pump; 7. Clean water pipe; 8. Clean water tank;

[0023] 9. Suction pipe; 10. Air pressure pipe; 101. Aeration pump;

[0024] 11. First air pump; 12. Air supply pipe; 13. Second air pump; 14. Air inlet pipe; 15. Sewage discharge pipe; 16. Sewage pump; 17. Suction plate; 171. Inlet; 18. Hollow plate; 19. Sewage suction pump; 20. Aeration disc;

[0025] 21. Air blowing pipe; 22. Aeration pipe; 23. Decanting pipe; 24. Decanting tank; 25. Guide rail; 26. Slip ring; 27. Float; 28. Counterweight; 29. ​​Connecting pipe. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1 - Figure 6 The SBR wastewater treatment equipment shown includes a tank 2. An aeration disc 20 is installed at the bottom of the tank 2. A top cover 1 is installed on the top of the tank 2, and an inlet pipe 5 is fixed to the top of the top cover 1. A drain pipe 15 is also installed on one side of the bottom of the tank 2. A drain pump 16 is connected to the end of the drain pipe 15. After starting the drain pump 16, the drain pump 16 can extract sludge and impurities from the bottom of the tank 2 to the outside of the tank 2. A suction plate 17 is installed inside the tank 2. An inlet 171 is provided on one side of the 7. An air blowing pipe 21 is also provided inside the box body 2 relative to the side of the suction plate 17. An air outlet is provided on one side of the air blowing pipe 21. The air outlet and the inlet 171 are at the same level. A suction pipe 9 is connected to the top of the suction plate 17. A suction pump 19 is connected to the extension end of the suction pipe 9. An air inlet pipe 14 is connected to the end of the air blowing pipe 21. A second air pump 13 is connected to the end of the air inlet pipe 14. A decanting mechanism is provided on one side of the air blowing pipe 21.

[0028] In this embodiment, specifically, before drainage, the air blowing pipe 21 floats on the water surface (the decanting mechanism has not descended, the air blowing pipe 21 is fixed to one side of the decanting mechanism and can descend with the decanting mechanism). The second air pump 13 is started, the second air pump 13 draws air and inputs air into the air inlet pipe 14 and the air blowing pipe 21. The air is discharged from the air outlet on one side of the air blowing pipe 21 and blown towards the water surface. The floating objects on the water surface move towards the suction plate 17 and eventually move into the inlet 171 of the suction plate 17. After the suction pump 19 is started, the dirt in the suction plate 17 is discharged outward through the suction pipe 9.

[0029] like Figure 1 - Figure 6 As shown, specifically, the decanting mechanism includes a guide rail 25 set inside the box 2, a decanting tank 24 slidably set on one side of the guide rail 25, decanting conduits 23 set at both ends of the decanting tank 24, a clean water pipe 7 connected to the top of the decanting tank 24, the end of the clean water pipe 7 extending to the outside of the box 2 and connected to a water pump 6, and a clean water pool 8 set below the water pump 6.

[0030] The decanting mechanism also includes a hollow plate 18 fixed to the top of the decanting tank 24. A counterweight 28 is provided at the bottom of the hollow plate 18. A float 27 is fixed to one side of the counterweight 28. A connecting pipe 29 is connected to the top of the float 27. The top of the connecting pipe 29 is connected to the bottom of the hollow plate 18. A slip ring 26 is fixed to the outer wall of the decanting tank 24. The slip ring 26 is sleeved on the outside of the guide rail 25.

[0031] The top of the hollow plate 18 is also connected to an air supply pipe 12. The air supply pipe 12 extends upward and passes through the top cover 1, and the extended end of the air supply pipe 12 is connected to a first air pump 11. Specifically, when the first air pump 11 is started, the first air pump 11 draws air into the air supply pipe 12. After the air enters the hollow plate 18 through the air supply pipe 12, the hollow plate 18 is filled with air. Finally, the air is input into the connecting pipe 29 and the gas is filled into the float 27. The float 27 supports the decanting tank 24 to ensure that the decanting tank 24 can float on the water.

[0032] It should be noted that during the decanting process, the first air pump 11 is activated to extract the air from the float 27. Without buoyancy, the float 27 cannot support the decanting tank 24. The decanting tank 24 moves downward due to its own weight and the weight of the counterweight 28. During the downward movement, the decanting pipe 23 is inserted into the clarified liquid, and the liquid enters the decanting tank 24. After the water pump 6 is activated, the water pump 6 extracts the clarified liquid and transports it from the clear water pipe 7 to the clear water pool 8.

[0033] Specifically, during the descent of the decanting tank 24, the portions of the air inlet pipe 14, the air supply pipe 12, and the clean water pipe 7 located inside the tank body 2 are all retractable hoses. The descent of the decanting tank 24 pulls the retractable portions of the air supply pipe 12 and the clean water pipe 7 to extend in order to meet the descent requirements of the decanting tank 24.

[0034] like Figure 1 - Figure 6 As shown, a sewage pump 3 is connected to the end of the inlet pipe 5, and a sewage collection tank 4 is provided on one side of the sewage pump 3. Specifically, an external sewage pipe (not shown in the figure) is also connected to the sewage collection tank 4. External sewage enters the sewage collection tank 4 through this pipe, and then the sewage pump 3 is started to draw the sewage in the sewage collection tank 4 into the tank 2.

[0035] like Figure 1 - Figure 6 As shown, an aeration pipe 22 is provided at the bottom of the aeration disc 20, and an air pressure pipe 10 is connected to the end of the aeration pipe 22. An aeration pump 101 is connected to the end of the air pressure pipe 10.

[0036] Specifically, the SBR wastewater treatment equipment of this application is divided into multiple stages in the wastewater treatment process:

[0037] (1) Water intake stage: In this stage, sewage 4 is collected from the external pipe into the sewage collection tank 4. After the sewage pump 3 is started, the sewage is drawn by the sewage pump 3 to the water inlet pipe 5 and input into the interior of the tank 2. The sewage is continuously added into the tank 2.

[0038] (2) Reaction stage: During the reaction stage, water intake and drainage are stopped, and the biochemical reaction of microorganisms begins. This stage is the main period for pollutant degradation. At the same time, an injection pipe is set on the top of the top cover 1, and a sealing cover is set on the injection pipe. The sealing cover can be opened to add the reactant into the tank 2. Microorganisms use the organic matter in the water for metabolism, thereby purifying the sewage. Depending on the treatment needs, continuous aeration or intermittent aeration can be selected. During the aeration stage, the aeration pump 101 is started. The aeration pump 101 draws air into the air pressure pipe 10 and then delivers it to the aeration pipe 22. The air is discharged from the aeration disc 20 to achieve the purpose of aeration. If the goal is to remove carbon sources, continuous aeration is used; if it is to remove nitrogen and phosphorus, intermittent aeration is used.

[0039] (3) Sedimentation stage: During the sedimentation stage, aeration is stopped, and the mixed liquor is allowed to remain still, so that the mud and water are separated. Since the entire system is completely still, the sedimentation effect is good, and the sludge flocs and supernatant can be effectively separated. This stage is usually controlled by time, and the sedimentation time is generally between 0.5 and 2 hours to ensure sufficient mud and water separation efficiency.

[0040] (4) Drainage stage: The purpose of the drainage stage is to discharge the treated supernatant while retaining the activated sludge at the bottom as inoculation sludge for the next cycle. The decanting mechanism plays a key role in this stage, as it can discharge the clarified water from the static surface of the pool without disturbing the settled sludge layer.

[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An SBR wastewater treatment device, comprising a housing (2), characterized in that: An aeration disc (20) is provided at the bottom of the box (2), and a top cover (1) is provided at the top of the box (2). A water inlet pipe (5) is fixed to the top of the top cover (1). A sewage pipe (15) is also provided on one side of the bottom of the box (2). A sewage pump (16) is connected to the end of the sewage pipe (15). A suction plate (17) is provided inside the box (2). An inlet (171) is opened on one side of the suction plate (17). The interior of the box (2) is relative to the suction plate (17). A blower pipe (21) is also provided on one side of the 17), and an air outlet is provided on one side of the blower pipe (21). The air outlet and the inlet (171) are on the same horizontal plane. A suction pipe (9) is connected to the top of the suction plate (17). A suction pump (19) is connected to the extension end of the suction pipe (9). An air inlet pipe (14) is connected to the end of the blower pipe (21). A second air pump (13) is connected to the end of the air inlet pipe (14). A decanting mechanism is provided on one side of the blower pipe (21).

2. The SBR wastewater treatment equipment according to claim 1, characterized in that: The decanting mechanism includes a guide rail (25) installed inside the housing (2). A decanting tank (24) is slidably installed on one side of the guide rail (25). Decanting conduits (23) are installed at both ends of the decanting tank (24). A clean water pipe (7) is connected to the top of the decanting tank (24). The end of the clean water pipe (7) extends to the outside of the housing (2) and is connected to a water pump (6). A clean water pool (8) is installed below the water pump (6).

3. The SBR wastewater treatment equipment according to claim 2, characterized in that: The decanting mechanism also includes a hollow plate (18) fixed to the top of the decanting tank (24). A counterweight (28) is provided at the bottom of the hollow plate (18). A float (27) is fixed on one side of the counterweight (28). A connecting pipe (29) is connected to the top of the float (27). The top of the connecting pipe (29) is connected to the bottom of the hollow plate (18). A slip ring (26) is fixed to the outer wall of the decanting tank (24). The slip ring (26) is sleeved on the outside of the guide rail (25).

4. The SBR wastewater treatment equipment according to claim 3, characterized in that: The top of the hollow plate (18) is also connected to an air supply pipe (12), which extends upward and passes through the top cover (1), and the extended end of the air supply pipe (12) is connected to a first air pump (11).

5. The SBR wastewater treatment equipment according to claim 1, characterized in that: The end of the water inlet pipe (5) is connected to a sewage pump (3), and a sewage collection tank (4) is provided on one side of the sewage pump (3).

6. The SBR wastewater treatment equipment according to claim 1, characterized in that: The bottom of the aeration disc (20) is provided with an aeration pipe (22), the end of the aeration pipe (22) is connected to an air pressure pipe (10), and the end of the air pressure pipe (10) is connected to an aeration pump (101).

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