SBR (Sequencing Batch Reactor) aeration device

Abstract

The utility model relates to the technical field of sewage treatment devices, in particular to an SBR (Sequencing Batch Reactor) aeration device which comprises a central rod, the lower end of the central rod is connected with a chassis seat through a butt joint mechanism, the outer side of the central rod is symmetrically and rotationally sleeved with a rotating shell, and a gas dispersion cavity and a water dispersion cavity are arranged between the central rod and the rotating shell; a connecting mechanism is arranged on the side wall of the center rod and arranged in the rotating shell through a mounting mechanism, and a sweeping mechanism is arranged on the side wall of the rotating shell. Through the rotating shell and the drain pipe, the exhaust pipe and the brush which are distributed in the circumferential direction, gas and water are horizontally sprayed to form power for driving the rotating shell to rotate, so that the brush is driven to synchronously rotate for sweeping, and through the gas dispersing cavity and the water dispersing cavity, respective supply and flow control of the water and the gas are conveniently achieved; the drainage pipe, the exhaust pipe and the brush are all of a detachable splicing structure, so that the spraying coverage area of water and gas and the cleaning area of the brush are changed.

Description

Technical Field

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

[0002] The main purpose of SBR aeration units is to provide oxygen in the SBR wastewater treatment process to support the growth and reproduction of microorganisms and promote the oxidative decomposition of organic matter. Through periodic aeration and sedimentation processes, SBR aeration units can decompose organic matter in wastewater into harmless carbon dioxide, water, and microbial residues, thereby achieving wastewater purification.

[0003] According to a patent with publication number CN215559315U, an SBR aeration device solves the technical problem of poor mixing and aeration effect by optimizing the nozzle angle in the aeration component. By setting up double-layer nozzles facing horizontally and double-layer nozzles facing obliquely downward, jets are formed in two directions, simultaneously mixing the bottom and body of the tank, avoiding sludge deposition at the bottom, thus achieving efficient mixing at the bottom of the tank. At the same time, the aeration component and the central fixing component are detachably connected, which can easily adjust the number and distribution of the aeration component, solving the problem of inconvenient adjustment and installation of the aeration component in the tank, and realizing the effect of conveniently adjusting the distribution of the aeration device according to the wastewater quality.

[0004] However, since the position and direction of the nozzle are fixed in this technical solution, the areas impacted and disturbed by the jets in the two directions are also fixed. As a result, local differences in agitation of the bottom and body of the tank are likely to occur. Moreover, due to the presence of water in the reaction tank, the impact force of the water jet from the nozzle is limited, and it is impossible to effectively remove the debris adsorbed on the bottom surface of the tank.

[0005] Based on this, an SBR aeration device is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] To address the aforementioned issues, an SBR aeration device is provided, which solves the problems of poor mixing effect at the bottom of the tank and cleaning of debris on the bottom surface by using a drain pipe, an exhaust pipe, and a brush.

[0007] To address the problems of existing technologies, this utility model provides an SBR aeration device, including a central rod. The lower end of the central rod is connected to a chassis base via a docking mechanism. A rotating housing is symmetrically rotatably sleeved on the outer side of the central rod. A gas dispersion chamber and a water dispersion chamber are provided between the central rod and the rotating housing. A connecting mechanism is provided on the side wall of the central rod. The connecting mechanism is installed inside the rotating housing via an installation mechanism. A cleaning mechanism is provided on the side wall of the rotating housing.

[0008] Preferably, the connecting mechanism includes a lower plate, an upper plate, and a partition plate. The upper plate is provided on the top side wall of the central rod, the partition plate is provided on the middle side wall of the central rod, and the lower plate is provided on the bottom side wall of the central rod. A concave upper annular cavity is formed between the lower plate and the partition plate, and a concave lower annular cavity is formed between the lower plate and the partition plate. An air inlet pipe and a water inlet pipe are symmetrically provided through the upper plate. One end of the air inlet pipe passes through the upper plate and connects to the gas dispersion cavity, and one end of the water inlet pipe passes through the upper plate and the partition plate and connects to the water dispersion cavity.

[0009] Preferably, the lower plate, upper plate, and separator plate have the same outer diameter.

[0010] Preferably, the mounting mechanism includes a first rolling bearing, an upper annular disc, a separating annular disc, a lower annular disc, an air diffuser, a water diffuser, a lug, a first bearing semi-groove, a second bearing semi-groove, and a second rolling bearing. The upper annular disc is located on the inner wall of the top of the rotating housing; the separating annular disc is located on the inner wall of the middle of the central rod; and the lower annular disc is located on the inner wall of the bottom of the rotating housing. The lower annular disc has a first bearing semi-groove, and the upper annular disc has a second bearing semi-groove. Several air diffusers are located between the upper annular disc and the separating annular disc where the side wall of the central rod is located, and several air diffusers are located between the separating annular disc and the lower annular disc where the side wall of the rotating housing is located. The diffuser and the air diffuser are both connected to the exhaust pipe and the drain pipe via a sleeve mechanism. Several exhaust pipes and drain pipes are installed on the side wall of the central rod. A first rolling bearing is embedded in the semi-embedded groove of the second bearing. The inner ring of the first rolling bearing is sleeved on the outer circular surface of the upper plate body, and the bottom and top end faces of the inner ring are positioned by retaining rings. A second rolling bearing is embedded in the semi-embedded groove of the first bearing. The inner ring of the second rolling bearing is sleeved on the outer circular surface of the lower plate body, and the bottom end face of the inner ring is positioned by a shoulder, and the top end face is positioned by a retaining ring. Several locking lugs are provided on the side wall of the rotating housing. Sealing strips are provided on the surfaces of the rotating housings that are in contact with each other.

[0011] Preferably, the docking mechanism includes a boss and a screw, the lower end of the central rod is provided with a screw, the rotating housing is provided with a boss near the end of the screw, and the boss is provided with a thread that mates with the screw.

[0012] Preferably, the cleaning mechanism includes a mounting plate and brushes, the mounting plate is provided with a plurality of brushes, and the bottom sidewall of the rotating housing is provided with a plurality of mounting plates.

[0013] Preferably, the sleeve mechanism includes an external thread section and an internal thread section. One end of the exhaust pipe and the drain pipe is provided with an external thread section, and the other end of the exhaust pipe and the drain pipe is provided with an internal thread section. The air outlet and the water outlet are provided with threads that mate with the external thread section or the internal thread section. The sidewalls of the exhaust pipe and the drain pipe are each provided with a plurality of dispersion holes. The end of the exhaust pipe and the drain pipe away from the rotating housing is provided with a sealing cap.

[0014] The advantages of this utility model compared to the prior art are:

[0015] 1. This utility model features a rotatable housing with circumferentially distributed drain pipes, exhaust pipes, and brushes. Gas and water are horizontally sprayed to generate the power to drive the housing to rotate, which in turn drives the brushes to rotate synchronously to clean the bottom of the equipment, preventing sludge from accumulating and achieving thorough and efficient mixing at the bottom of the equipment.

[0016] 2. This utility model features a rotatable housing on the outside of the central rod. The rotatable housing and the central rod form isolated gas dispersion chambers and water dispersion chambers, facilitating separate supply and flow control of water and gas. The jetting airflow and water flow drive the rotatable housing to rotate, while the exhaust pipe and drain pipe rotate synchronously. This ensures that the jetting airflow and water flow fully cover the rotating plane, allowing for more uniform gas distribution and more thorough mixing of the jetting water with the water at the bottom, thereby improving the stirring effect.

[0017] 3. This utility model adopts a detachable splicing structure for the drain pipe, exhaust pipe and brush, which facilitates the adjustment of the overall length, thereby changing the spray coverage area of ​​water and gas as well as the cleaning area of ​​the brush, so as to adapt to the reaction requirements of different specifications. Attached Figure Description

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an SBR aeration device. Figure 1 .

[0019] Figure 2 A schematic diagram of the three-dimensional structure of an SBR aeration device. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the disassembled three-dimensional structure of an SBR aeration device.

[0021] Figure 4 This is a three-dimensional structural diagram of the sleeve mechanism of an SBR aeration device.

[0022] Figure 5 This is a side view of an SBR aeration device.

[0023] Figure 6 This is a schematic diagram of the AA cross-section of an SBR aeration device.

[0024] Figure 7 This is a three-dimensional structural diagram of the installation mechanism of an SBR aeration device.

[0025] Figure 8 It is an SBR aeration device Figure 3 A magnified three-dimensional structural diagram of part A.

[0026] The diagram is labeled as follows: 101, chassis base; 102, center rod; 103, rotating housing; 104, gas dispersion chamber; 105, water dispersion chamber; 106, air inlet pipe; 107, water inlet pipe; 108, exhaust pipe; 109, drain pipe; 200, connecting mechanism; 201, lower plate; 202, upper plate; 203, separating plate; 300, mounting mechanism; 301, first rolling bearing; 302, upper annular plate; 303, separating annular plate; 3 04. Lower annular disc; 305. Air diffuser; 306. Water diffuser; 307. Lug; 308. First bearing semi-groove; 309. Second bearing semi-groove; 310. Second rolling bearing; 400. Cleaning mechanism; 401. Mounting plate; 402. Brush; 500. Connecting mechanism; 501. External thread section; 502. Internal thread section; 503. Sealing cap; 504. Dispersion hole; 600. Connecting mechanism; 601. Boss; 602. Screw. Detailed Implementation

[0027] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0028] Reference Figures 1-8 An SBR aeration device includes a central rod 102, the lower end of which is connected to a base 101 via a docking mechanism 600. A rotating housing 103 is symmetrically rotatably sleeved on the outer side of the central rod 102. A gas dispersion chamber 104 and a water dispersion chamber 105 are provided between the central rod 102 and the rotating housing 103. A connecting mechanism 200 is provided on the side wall of the central rod 102. The connecting mechanism 200 is installed inside the rotating housing 103 via an installation mechanism 300. A cleaning mechanism 400 is provided on the side wall of the rotating housing 103.

[0029] A rotatable housing 103 is provided, and a circumferentially distributed drain pipe 109, exhaust pipe 108, and brush 402 are provided on the housing 103. Gas and water are sprayed horizontally to generate the power to drive the rotation of the housing 103, thereby driving the cleaning mechanism 400 to clean the bottom of the equipment and prevent the accumulation of sludge at the bottom of the equipment. The chassis 101 has a disc-shaped structure with several screw connection holes, so that the chassis 101 can be fastened to the center of the inner bottom surface of the equipment by screws to avoid damage to the structure of the equipment itself. Alternatively, the chassis 101 can be fixed in the equipment by vacuum suction cup adsorption, magnetic adsorption, adhesive bonding, or other connection methods.

[0030] Reference Figures 2-3 The connecting mechanism 200 includes a lower plate 201, an upper plate 202, and a separating plate 203. The upper plate 202 is provided on the top side wall of the central rod 102, the separating plate 203 is provided on the middle side wall of the central rod 102, and the lower plate 201 is provided on the bottom side wall of the central rod 102. An inwardly concave upper annular cavity is formed between the lower plate 201 and the separating plate 203, and an inwardly concave lower annular cavity is formed between the lower plate 201 and the separating plate 203. An air inlet pipe 106 and a water inlet pipe 107 are symmetrically arranged through the upper plate 202. One end of the air inlet pipe 106 passes through the upper plate 202 and connects to the gas dispersion chamber 104. One end of the water inlet pipe 107 passes through the upper plate 202 and the separating plate 203 and connects to the water dispersion chamber 105.

[0031] The arrangement of the lower plate 201, upper plate 202, and partition plate 203 forms a gas dispersion chamber 104 and a water dispersion chamber 105, facilitating separate supply and flow control of water and gas. The jetting airflow and water flow drive the rotating housing 103 to rotate, while the exhaust pipe 108 and drain pipe 109 rotate synchronously. This allows the jetting airflow and water flow to fully cover the rotating plane, enabling more uniform gas distribution and more thorough mixing of the jetting water with the water at the bottom, thereby improving the stirring effect.

[0032] Reference Figure 3 The lower plate 201, upper plate 202 and partition plate 203 have the same outer diameter.

[0033] The lower plate 201, the upper plate 202 and the partition plate 203 are integrally formed structures with the same outer diameter, which facilitates the formation of the gas dispersion chamber 104 and the water dispersion chamber 105.

[0034] Reference Figures 5-7The mounting mechanism 300 includes a first rolling bearing 301, an upper annular disc 302, a separating annular disc 303, a lower annular disc 304, an air diffuser 305, a water diffuser 306, a lug 307, a first bearing semi-groove 308, a second bearing semi-groove 309, and a second rolling bearing 310. The upper annular disc 302 is located on the inner wall of the top of the rotating housing 103, and the separating annular disc 304 is located on the inner wall of the middle of the central rod 102. 03. A lower annular disc 304 is provided on the inner wall of the bottom end of the rotating housing 103. The lower annular disc 304 is provided with a first bearing semi-embedded groove 308, and the upper annular disc 302 is provided with a second bearing semi-embedded groove 309. A plurality of air vents 305 are provided between the upper annular disc 302 where the side wall of the central rod 102 is located and the separating annular disc 303. The separating annular disc 303 where the side wall of the rotating housing 103 is located and the lower annular disc Several water outlets 306 are provided between the bodies 304. The air outlets 305 and water outlets 306 are connected to the exhaust pipe 108 and the drain pipe 109 through the sleeve mechanism 500. Several exhaust pipes 108 and drain pipes 109 are installed on the side wall of the central rod 102. The first rolling bearing 301 is embedded in the second bearing semi-embedded groove 309. The inner ring of the first rolling bearing 301 is sleeved on the outer circular surface of the upper plate body 202, and the bottom end face and the top end face of the inner ring are positioned by retaining rings. The second rolling bearing 310 is embedded in the first bearing semi-embedded groove 308. The inner ring of the second rolling bearing 310 is sleeved on the outer circular surface of the lower plate body 201, and the bottom end face of the inner ring is positioned by a shaft shoulder, and the top end face is positioned by a retaining ring. Several locking lugs 307 are provided on the side wall of the rotating housing 103. Sealing strips are provided on the surfaces of the rotating housings 103 that are in contact with each other.

[0035] Through the rolling connection of two bearings, the rotating housing 103 can rotate smoothly outside the central rod 102. Because the inner wall of the upper annular disc 302 slides against the outer wall of the upper disc 202, the inner wall of the separating annular disc 303 slides against the outer wall of the separating disc 203, and the inner wall of the lower annular disc 304 slides against the outer wall of the lower disc 201, the two rolling bearings are in a relatively sealed state, minimizing contact between the rolling bearings and water, thus ensuring the normal use and service life of the rolling bearings. For ease of use... The connection between the two rotating housings 103 is fixed and sealed. Several connecting lugs 307 are integrally provided on the outer circular sidewall edge of the rotating housing 103. Sealing strips are provided on the vertical side planes on both sides of the rotating housing 103. The connecting lugs 307 on the two rotating housings 103 are paired and fixedly connected by bolts. After the connection is fixed, the sealing strips seal the joint of the two rotating housings 103 to prevent water entering the water dispersion chamber 105 and gas entering the gas dispersion chamber 104 from overflowing from the joint.

[0036] Reference Figure 8 The docking mechanism 600 includes a boss 601 and a screw 602. The screw 602 is provided at the lower end of the central rod 102. The boss 601 is provided at one end of the rotating housing 103 near the screw 602. The boss 601 is provided with a thread that mates with the screw 602.

[0037] The boss 601 and the thread are used to connect and install the center rod 102 to the boss 601.

[0038] Reference Figures 2-3 The cleaning mechanism 400 includes a mounting plate 401 and brushes 402. The mounting plate 401 is provided with a plurality of brushes 402, and the rotating housing 103 is provided with a plurality of mounting plates 401 on the bottom side wall.

[0039] The mounting plate 401 drives the brush 402 to rotate. The brush 402 is used to clean the bottom of the equipment to prevent sludge from accumulating at the bottom of the equipment and to achieve full and efficient mixing at the bottom of the equipment.

[0040] Reference Figure 4 The sleeve mechanism 500 includes an external thread section 501 and an internal thread section 502. One end of the exhaust pipe 108 and the drain pipe 109 is provided with an external thread section 501, and the other end of the exhaust pipe 108 and the drain pipe 109 is provided with an internal thread section 502. The air outlet 305 and the water outlet 306 are provided with threads that mate with the external thread section 501 or the internal thread section 502. The sidewalls of the exhaust pipe 108 and the drain pipe 109 are each provided with a plurality of dispersion holes 504. The end of the exhaust pipe 108 and the drain pipe 109 away from the rotating housing 103 is provided with a sealing cap 503.

[0041] The external thread section 501 and the internal thread section 502 are used to install and connect the exhaust pipe 108 and the drain pipe 109 and connect them to the air outlet 305 and the water outlet 306 to achieve quick disassembly and installation.

[0042] Working principle: The sewage pump and blower operate. The sewage pump draws water from the upper part of the reaction tank and sends it into the water dispersion chamber 105. The water entering the water dispersion chamber 105 simultaneously enters the four drain pipes 109 through four diffuser outlets 306, and then is ejected at high speed through the dispersion holes 504. The ejected water flow creates a backlash with the water in the reaction tank, driving the rotating housing 103 to rotate continuously in a fixed direction. The ejected water flow is uniformly mixed with the water at the bottom of the reaction tank. At the same time, the blower sends external oxygen or air into the gas dispersion chamber 104. The gas entering the gas dispersion chamber 104 simultaneously enters the two exhaust outlets through two gas outlets 305. Inside the pipe, the airflow is then ejected at high speed through the dispersion hole 504. The jetting airflow creates a backlash with the water in the reaction tank, and pushes the rotating shell 103 to rotate continuously in a fixed direction in the same direction as the jetting water flow. The jetting airflow forms a fully covered dispersion bubble in the water at the bottom of the reaction tank. As the bubble rises, it fully contacts the liquid, thereby supplying oxygen to the liquid. During the rotation of the rotating shell 103, the brush 402 rotates synchronously. The bristles at the bottom of the brush clean the bottom surface of the equipment to prevent sludge from depositing and adhering at the bottom. At the same time, the side of the brush 401 can also agitate the water at the bottom, further stirring the water.

[0043] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. An SBR aeration device, characterized in that, The device includes a central rod (102), the lower end of which is connected to a chassis base (101) via a docking mechanism (600). A rotating housing (103) is symmetrically rotatably sleeved on the outer side of the central rod (102). A gas dispersion chamber (104) and a water dispersion chamber (105) are provided between the central rod (102) and the rotating housing (103). A connecting mechanism (200) is provided on the side wall of the central rod (102). The connecting mechanism (200) is installed inside the rotating housing (103) via an installation mechanism (300). A cleaning mechanism (400) is provided on the side wall of the rotating housing (103).

2. The SBR aeration device according to claim 1, characterized in that, The connecting mechanism (200) includes a lower plate (201), an upper plate (202), and a partition plate (203). The upper plate (202) is provided on the top side wall of the central rod (102), the partition plate (203) is provided on the middle side wall of the central rod (102), and the lower plate (201) is provided on the bottom side wall of the central rod (102). A concave upper annular shape is formed between the lower plate (201) and the partition plate (203). The cavity is formed by the lower plate (201) and the partition plate (203) forming a concave lower annular cavity. The upper plate (202) is symmetrically provided with an air inlet pipe (106) and a water inlet pipe (107). One end of the air inlet pipe (106) passes through the upper plate (202) and connects to the gas dispersion cavity (104). One end of the water inlet pipe (107) passes through the upper plate (202) and the partition plate (203) and connects to the water dispersion cavity (105).

3. The SBR aeration device according to claim 2, characterized in that, The lower plate (201), upper plate (202), and separator plate (203) have the same outer diameter.

4. The SBR aeration device according to claim 1, characterized in that, The mounting mechanism (300) includes a first rolling bearing (301), an upper annular disc (302), a separating annular disc (303), a lower annular disc (304), an air diffuser (305), a water diffuser (306), a lug (307), a first bearing half-groove (308), a second bearing half-groove (309), and a second rolling bearing (310). The upper annular disc (302) is provided on the inner wall of the top of the rotating housing (103), and a separating annular disc is provided on the inner wall of the middle of the central rod (102). The rotating housing (103) has a lower annular disc (304) on its inner bottom wall, a first bearing half-groove (308) on the lower annular disc (304), and a second bearing half-groove (309) on the upper annular disc (302). Several air vents (305) are provided between the upper annular disc (302) where the side wall of the central rod (102) is located and the separating annular disc (303). A plurality of water outlets (306) are provided between the upper and lower annular discs (304). The air outlets (305) and water outlets (306) are connected to the exhaust pipe (108) and the drain pipe (109) through a sleeve mechanism (500). A plurality of exhaust pipes (108) and drain pipes (109) are provided and installed on the side wall of the central rod (102). The second bearing semi-embedded groove (309) is fitted with a first rolling bearing (301). The inner ring of the first rolling bearing (301) is sleeved on the upper disc (20). 2) The outer circular surface and the bottom and top end faces of the inner ring are positioned by retaining rings. The first bearing half-groove (308) is fitted with a second rolling bearing (310). The inner ring of the second rolling bearing (310) is sleeved on the outer circular surface of the lower plate (201). The bottom end face of the inner ring is positioned by a shoulder and the top end face is positioned by a retaining ring. The side wall of the rotating housing (103) is provided with several locking lugs (307). The surfaces of the rotating housings (103) that are in contact with each other are provided with sealing strips.

5. An SBR aeration device according to claim 1, characterized in that, The docking mechanism (600) includes a boss (601) and a screw (602). The screw (602) is provided at the lower end of the central rod (102). The rotating housing (103) is provided with a boss (601) near the end of the screw (602). The boss (601) is provided with a thread that mates with the screw (602).

6. An SBR aeration device according to claim 1, characterized in that, The cleaning mechanism (400) includes a mounting plate (401) and a brush (402). The mounting plate (401) is provided with a plurality of brushes (402), and the rotating housing (103) is provided with a plurality of mounting plates (401) on the bottom side wall.

7. An SBR aeration device according to claim 4, characterized in that, The socketing mechanism (500) includes an external thread section (501) and an internal thread section (502). One end of the exhaust pipe (108) and the drain pipe (109) is provided with an external thread section (501), and the other end of the exhaust pipe (108) and the drain pipe (109) is provided with an internal thread section (502). The air outlet (305) and the water outlet (306) are provided with threads that mate with the external thread section (501) or the internal thread section (502). The sidewalls of the exhaust pipe (108) and the drain pipe (109) are each provided with a plurality of dispersion holes (504). The end of the exhaust pipe (108) and the drain pipe (109) away from the rotating housing (103) is provided with a sealing cap (503).

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