A / O sewage treatment device and sewage treatment process

Abstract

The invention discloses an A / O sewage treatment device and a sewage treatment process, belongs to the technical field of sewage treatment, and provides the following scheme that the A / O sewage treatment device comprises an aeration treatment mechanism, the aeration treatment mechanism is connected with a plurality of aeration auxiliary mechanisms, the aeration treatment mechanism comprises a gas transmission assembly, the gas transmission assembly is connected with a plurality of aeration heads, and the aeration heads are connected with the aeration auxiliary mechanisms. The aeration auxiliary mechanism comprises two protection assemblies and two bent cylinders; a first piston is pushed to move through aeration pressure, the first piston drives a second piston to move through hydraulic pressure, a toothed bar and a cleaning assembly are in transmission, stirring blades are kept rotating, the first piston further drives a moving assembly to slide in an oblique arc groove through a piston rod, and a protective cover and a connecting piece are driven to rotate and move through rotation; when the aeration pressure is adjusted, water flow is stirred by the stirring blades, and meanwhile, sewage is disturbed by the protective cover and the connecting piece, so that the aeration uniformity can be improved, oxygen dissolution is promoted, and the aeration effect is more remarkable.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly relates to an A / O sewage treatment device and a sewage treatment process. Background Art

[0002] The A / O process connects the front anoxic section and the rear aerobic section in series. In the anoxic section, heterotrophic bacteria hydrolyze suspended pollutants and soluble organic matters such as starch, fiber, and carbohydrates in the sewage into organic acids, decompose macromolecular organic matters into small-molecular organic matters, and convert insoluble organic matters into soluble organic matters. At the same time, heterotrophic bacteria also ammonify pollutants such as proteins and fats, releasing ammonia (NH3, NH4+). After these products hydrolyzed in the anoxic section enter the aerobic tank, aerobic bacteria use oxygen to oxidize ammonia nitrogen into nitrate nitrogen, improving the biodegradability of the sewage. Subsequently, through reflux control, nitrate nitrogen returns to the anoxic tank. Under anoxic conditions, the denitrification of heterotrophic bacteria reduces nitrate nitrogen to molecular nitrogen (N2), completing the cycle of C, N, and O in the ecosystem and achieving harmless treatment of sewage.

[0003] Currently, in the A / O sewage treatment process, aerobic tanks generally rely on efficient aeration devices to inject air into the sewage to ensure sufficient contact between the sewage in the tank and the air and oxygenation. Although existing aeration devices can flexibly adjust their oxygenation efficiency by regulating the pressure of the pumped air, however, their aeration positions are relatively fixed, making it difficult to effectively disturb the water body, resulting in poor aeration uniformity. More critically, once the aeration heads stop operating, the sludge in the sewage will deposit and adhere to the aeration heads due to gravity, thereby blocking their micropores, which not only seriously weakens the aeration efficiency but also brings many inconveniences in cleaning. Therefore, how to optimize the design of the aeration device and improve its aeration uniformity and anti-blocking performance has become an urgent problem to be solved in the current A / O sewage treatment field. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages that although the common aeration device can adjust the oxygenation capacity of the aeration device by adjusting the pressure of the pumped air during use, its aeration position is fixed, which is not convenient for disturbing the water body, resulting in poor aeration uniformity, and when the aeration head stops, the sludge in the sewage will precipitate and fall on the aeration head, thereby blocking the micropores on the aeration head, affecting the aeration effect and being inconvenient to clean, and to propose an A / O sewage treatment device and a sewage treatment process.

[0005] To achieve the above purpose, the present invention adopts the following technical scheme: An A / O sewage treatment device includes an aeration treatment mechanism, and a plurality of aeration auxiliary mechanisms are connected to the aeration treatment mechanism; The aeration treatment mechanism includes a gas transmission component, and a plurality of aeration heads are connected to the gas transmission component; The aeration auxiliary mechanism includes two protection components and two bent tubes. The bent tubes are connected to the air delivery component. A rotating component is arranged inside the protection component. A protection cover is connected above the rotating component. The protection cover is used to protect the aeration head. A connecting piece is fixedly connected between two adjacent protection covers. The same piston shell is connected above the two protection covers. Two cleaning components are arranged on the piston shell. The lower part of the cleaning component contacts the aeration head, and the cleaning component is in transmission with a toothed rod. One end of the toothed rod is fixedly connected with a second piston. The two second pistons are arranged in the piston shell. Both sides of the piston shell are respectively communicated with the two bent tubes through hoses; A first piston is arranged inside the bent tube. One side of the first piston is connected with a piston resistance adjusting component, and one side of the first piston is fixedly connected with a piston rod. The piston rod passes through the bent tube and is connected with a moving component. The bottom of the moving component slides in an inclined arc groove, an arc groove and a straight groove, and the inclined arc groove, the arc groove and the straight groove are communicated. The inclined arc groove, the arc groove and the straight groove are arranged on the rotating component.

[0006] Preferably, the air delivery component includes an aeration pipe. A connector is installed on the aeration pipe, and a plurality of aeration heads are fixedly installed on the aeration pipe. A plurality of mounting brackets are also arranged on the aeration pipe.

[0007] Preferably, the protection component includes a protection box. The bent tube is installed on the protection box. A soft sealing layer is installed above the protection box, and the soft sealing layer is made of PVC material. One end of the protection cover is embedded in the soft sealing layer.

[0008] Preferably, two air bags are arranged above the piston shell; The groove depth of the straight groove gradually decreases towards the inclined arc groove, so that the groove depth of the straight groove is higher than that of the inclined arc groove.

[0009] Preferably, the rotating component includes a first rotating shaft. The two ends of the first rotating shaft are rotatably installed in two first bearings. The two first bearings are fixedly installed on the protection box. One side of the first bearing is fixedly connected with a torsion spring. One end of the two torsion springs is fixedly connected with the two ends of a rotating cylinder. The rotating cylinder is fixedly connected to the first rotating shaft, and the rotating cylinder is fixedly connected with one end of the protection cover. The inclined arc groove, the arc groove and the straight groove are opened on the rotating cylinder.

[0010] Preferably, the above-mentioned moving component includes a telescopic rod and a second spring. The two ends of the telescopic rod and the second spring are respectively connected with the piston rod and a roller. The roller is located at the connection position of the inclined arc groove and the straight groove at this time.

[0011] Preferably, the cleaning component includes a second rotating shaft, on which a gear is fixedly connected. The gear meshes with a toothed rod. The second rotating shaft is rotatably installed in two second bearings, and the second bearings are installed on the piston housing. Both ends of the second rotating shaft are fixedly connected with stirring blades, and a brush is fixedly connected to the middle of the lower stirring blade. The brush is used for cleaning the aeration head.

[0012] Preferably, the piston resistance adjusting component includes an orifice plate and two adjusting sleeves. The orifice plate is sleeved on the piston rod, and two adjusting rods are fixedly connected to one side of the orifice plate. The adjusting rods are fixed in the adjusting sleeves by bolts, and one ends of the two adjusting rods are fixedly connected with the same connecting ring. The connecting ring is sleeved on the piston rod, and a first spring is fixedly connected between the connecting ring and the first piston.

[0013] Preferably, a retaining ring is fixedly connected inside the bent cylinder, and the retaining ring is lapped with the first piston.

[0014] A sewage treatment process for an A / O sewage treatment device includes the following steps: S1. During aeration in the sewage treatment process, air is supplied into the aeration pipe through an aeration device. The gas is shunted into the bent cylinder, and at the same time, a part of the gas is discharged through the aeration head to perform aeration treatment on the sewage. S2. The gas entering the inside of the bent cylinder controls the movement of the first piston through air pressure. The first piston drives the deformation of the first spring. Since the inner cavity connected to the piston housing through a hose stores liquid in the bent cylinder, the first piston can input the liquid into the piston housing, so that the hydraulic pressure drives the toothed rod to move through the second piston. The toothed rod is in transmission with the gear, so that the gear drives the second rotating shaft and the stirring blades to rotate. The stirring blades disturb the water flow, and at the same time, the brush rotates to clean the aeration head. S3. When the first piston moves, the first piston also drives the piston rod to move. The piston rod drives the moving component to move, so that the roller slides in the inclined arc groove, and the roller presses the rotating cylinder to rotate through the inclined surface of the inclined arc groove. The rotating cylinder drives the deformation of the torsion spring. At the same time, the rotating cylinder drives the protective cover to flip upwards to open the aeration head, so that the aeration head can smoothly perform the aeration operation. S4. After the aeration device is turned off, the first spring and the torsion spring are reset, so that the protective cover flips downwards to protect the aeration head, and at the same time, the brush rotates again to clean the aeration head. S5. When the aeration head is blocked, the air pressure continuously pushes the first piston and the piston rod to move. At the same time, through the hydraulic pressure, the toothed rod is in transmission with the cleaning component for cleaning, and the roller is moved to the node of the inclined arc groove and the arc groove. At this time, the torsion spring is reset, so that the protective cover flips and resets for disturbing flow cleaning, and the roller is moved to the node of the arc groove and the straight groove. S6. Detect the pressure through the pressure sensor equipped on the aeration device. When the aeration head is unclogged and the aeration device stops operating at this time, after the first spring resets, the roller enters the node of the straight groove and the inclined arc groove, and then the aeration device starts operating again for aeration. When it is detected that the pressure is still increasing, stop the aeration device for maintenance.

[0015] Compared with the prior art, the present invention provides an A / O sewage treatment device and a sewage treatment process, having the following beneficial effects: 1. For the A / O sewage treatment device and the sewage treatment process, the movement of the first piston is driven by the aeration pressure, so that the first piston drives the second piston to move through hydraulic pressure, enabling the rack to drive the cleaning component, keeping the stirring blade rotating. Moreover, the first piston also drives the moving component to slide in the inclined arc groove through the piston rod, causing the rotation to drive the protective cover and the connecting piece to rotate. When the aeration pressure is adjusted, the stirring blade agitates the water flow, and at the same time, the protective cover and the connecting piece disturb the sewage, thereby improving the aeration uniformity, promoting oxygen dissolution, and making the aeration effect more significant.

[0016] 2. For the A / O sewage treatment device and the sewage treatment process, when the aeration device stops operating, the rotating component rotates and resets, causing the protective cover to flip downward to protect the aeration head, reducing sludge accumulation on the aeration head. At the same time, the reset of the first spring can drive the rack to retract and reset through hydraulic pressure, enabling the rack to drive the gear, and then the brush rotates to clean the aeration head. Moreover, this method can automatically clean after shutdown and startup, reducing the problem of aeration head blockage, thereby ensuring the aeration effect.

[0017] 3. For the A / O sewage treatment device and the sewage treatment process, when the aeration device starts to supply gas, if the aeration head is blocked, the air pressure continuously drives the movement of the first piston, so that the first piston drives the second piston and the rack to move through hydraulic pressure. The rack drives the cleaning component to clean the aeration head and disturbs the water flow, improving the cleaning effect of the aeration head. At the same time, the first piston drives the moving component to slide in the inclined arc groove through the piston rod, causing the rotating component to drive the protective cover to flip upward. When the moving component moves to the node position of the inclined arc groove and the arc groove, the rotating component resets at this time, and then the protective cover flips downward for flow disturbance operation, which is beneficial to unclog the aeration head. By adopting this method, the cleaning effect can be effectively improved, the aeration head can be automatically unclogged, efficient aeration operation can be maintained, and the oxygen transfer efficiency can be effectively improved, thereby improving the sewage treatment efficiency and reducing the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of an A / O sewage treatment device proposed by the present invention; Figure 2 It is a bottom three-dimensional view of an A / O sewage treatment device proposed by the present invention; Figure 3 Stereoscopic view of an aeration assistance mechanism of an A / O sewage treatment device proposed by the present invention; Figure 4 Stereoscopic view of a protection component of an A / O sewage treatment device proposed by the present invention; Figure 5 Partial stereoscopic view of an aeration pipe of an A / O sewage treatment device proposed by the present invention; Figure 6 Profile stereoscopic view of a protection cover of an A / O sewage treatment device proposed by the present invention; Figure 7 Bottom-up profile stereoscopic view of a protection component of an A / O sewage treatment device proposed by the present invention; Figure 8 Stereoscopic view of the connection between a part of the protection cover and a rotating component of an A / O sewage treatment device proposed by the present invention; Figure 9 Stereoscopic view of a rotating component of an A / O sewage treatment device proposed by the present invention; Figure 10 In the present invention Figure 9 Enlarged view of part A; Figure 11 Profile stereoscopic view of a bent cylinder of an A / O sewage treatment device proposed by the present invention; Figure 12 In the present invention Figure 11 Enlarged view of part B.

[0019] In the figure: 100, aeration treatment mechanism; 101, gas transmission component; 1011, joint; 1012, aeration pipe; 1013, installation bracket; 102, aeration head; 200, aeration assistance mechanism; 201, protection component; 2011, protection box; 2012, soft sealing layer; 202, bent cylinder; 203, first piston; 204, retaining ring; 205, piston rod; 206, piston resistance adjustment component; 2061, first spring; 2062, connecting ring; 2063, adjusting rod; 2064, adjusting sleeve; 2065, orifice plate; 207, moving component; 2071, roller; 2072, second spring; 2073, telescopic rod; 208, rotating component; 2081, rotating cylinder; 2082, first rotating shaft; 2083, torsion spring; 2084, first bearing; 209, cleaning component; 2091, stirring blade; 2092, brush; 2093, second rotating shaft; 2094, gear; 2095, second bearing; 210, hose; 211, second piston; 212, piston housing; 213, toothed rod; 214, linear groove; 215, airbag; 216, protection cover; 217, connecting piece; 218, inclined arc groove; 219, arc groove. Detailed implementation method

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0022] Example 1: Refer to Figures 1-12 , an A / O sewage treatment device, including an aeration treatment mechanism 100, and a plurality of aeration auxiliary mechanisms 200 are connected to the aeration treatment mechanism 100; The aeration treatment mechanism 100 includes an air delivery component 101. The air delivery component 101 includes an aeration pipe 1012. A connector 1011 is installed on the aeration pipe 1012. Through the connector 1011, it can be connected to the pipeline of the aeration equipment, so that the aeration equipment can smoothly deliver air into the aeration pipe 1012. And a plurality of aeration heads 102 are fixedly installed on the aeration pipe 1012. A plurality of mounting brackets 1013 are also provided on the aeration pipe 1012. A plurality of aeration heads 102 are connected to the air delivery component 101; The aeration auxiliary mechanism 200 includes two protective components 201 and two curved cylinders 202. The protective component 201 includes a protective box 2011. The curved cylinder 202 is installed on the protective box 2011. A soft sealing layer 2012 is installed above the protective box 2011. The soft sealing layer 2012 is made of PVC. The protective box 2011 and the soft sealing layer 2012 can seal and protect the internal rotating component 208 and the moving component 207. The soft sealing layer 2012 is soft and stretchable, so that the protective cover 216 can smoothly flip over. One end of the protective cover 216 is embedded in the soft sealing layer 2012. The curved cylinder 202 is connected to the gas delivery component 101. A rotating component 208 is provided in the protective component 201. The rotating component 208 is rotated. A protective cover 216 is connected to the top of the component 208. The protective cover 216 is used to protect the aeration head 102. A connecting piece 217 is fixedly connected between two adjacent protective covers 216. The connecting piece 217 connects the two protective covers 216. The rotation of the protective cover 216 can drive the connecting piece 217 to rotate, thereby increasing the turbulence area and improving the aeration effect. The top of the two protective covers 216 is connected to the same piston shell 212. Two cleaning components 209 are provided on the piston shell 212. The cleaning component 209 includes a second rotating shaft 2093. A gear 2094 is fixedly connected to the second rotating shaft 2093. The gear 2094 is meshed with the gear rod 213. The gear 2094 is transmitted through the gear rod 213 and the gear 2094, thereby realizing power transmission, so that the gear 2 094 drives the second rotating shaft 2093 and the brush 2092 to rotate, so that the brush 2092 can clean the aeration head 102, and the second rotating shaft 2093 also drives the stirring blade 2091 to rotate, so that the stirring blade 2091 can play a role in disturbing the flow. The second rotating shaft 2093 is rotatably installed in the two second bearings 2095. The second rotating shaft 2093 can rotate stably in the second bearings 2095, so that the second rotating shaft 2093 drives the stirring blade 2091 and the brush 2092 to rotate smoothly. The second bearing 2095 is installed on the piston housing 212. Both ends of the second rotating shaft 2093 are fixedly connected to the stirring blade 2091, and the middle part of the stirring blade 2091 below is fixedly connected to the brush 2092. The brush 2092 is soft. The soft bristles make the brush 2092 bend and deform when it is pressed on the aeration head 102, so as to maintain the tightness of the fit and avoid the synchronous rotation of the protective cover 216 and the brush 2092, which causes the problem of the brush 2092 cleaning the aeration head 102. In addition, the liquid storage space of the bent cylinder 202 is larger than the liquid storage space of the piston shell 212, thereby extending the rotation time of the brush 2092, making it convenient for the aeration head 102 to be cleaned after the protective cover 216 is closed and opened. The brush is used to clean the aeration head 102. The bottom of the cleaning component 209 is in contact with the aeration head 102, and the cleaning component 209 is driven by the gear rod 213. One end of the gear rod 213 is fixedly connected to the second piston 211. The two second pistons 211 are arranged in the piston shell 212.Above the piston housing 212, there are two air bags 215. Since the piston housing 212 is kept sealed, the second piston 211 is pushed forward, and the gas can be pressed into the air bags 215 to expand, so that the second piston 211 can move smoothly. Both sides of the piston housing 212 are respectively connected to two bent tubes 202 through hoses 210. The hoses 210 can play the role of transporting liquid, and the hoses 210 can be telescoped and moved, so that the piston housing 212 can follow the protective cover 216 to turn smoothly; Inside the bent cylinder 202, there is a first piston 203. A retaining ring 204 is fixedly connected inside the bent cylinder 202. The retaining ring 204 overlaps with the first piston 203. The retaining ring 204 can provide a support point for the first piston 203, thereby limiting the first piston 203. This can facilitate the subsequent adjustment of the moving resistance of the first piston 203. One side of the first piston 203 is connected with a piston resistance adjustment component 206. The piston resistance adjustment component 206 includes an orifice plate 2065 and two adjusting sleeves 2064. The orifice plate 2065 is sleeved on the piston rod 205. One side of the orifice plate 2065 is fixedly connected with two adjusting rods 2063. The adjusting rods 2063 are fixed in the adjusting sleeves 2064 by bolts. The adjusting rods 2063 can slide in the adjusting sleeves 2064. Since the first piston 203 contacts the retaining ring 204, the adjusting rods 2063 can squeeze the first spring 2061 through the connecting ring 2062, thereby compressing the first spring 2061 to different degrees to adjust the moving resistance of the first piston 203, and further meeting the pressure trigger conditions in different situations. Moreover, the position of the adjusting rods 2063 can be locked by bolts. One end of the two adjusting rods 2063 is fixedly connected with the same connecting ring 2062. The connecting ring 2062 is sleeved on the piston rod 205. A first spring 2061 is fixedly connected between the connecting ring 2062 and the first piston 203. The first spring 2061 can drive the first piston 203 to reset, and further drive the second piston 211 to move through hydraulic pressure. At the same time, the piston rod 205 drives the moving component 207 to complete the reset. One side of the first piston 203 is fixedly connected with a piston rod 205. The piston rod 205 passes through the bent cylinder 202 and is connected with the moving component 207. The bottom of the moving component 207 slides in the inclined arc groove 218, the arc groove 219 and the straight groove 214. The inclined arc groove 218, the arc groove 219 and the straight groove 214 are connected. The groove depth of the straight groove 214 gradually decreases in the direction of the inclined arc groove 218, so that the groove depth of the straight groove 214 is higher than that of the inclined arc groove 218. By the groove depth of the straight groove 214 being higher than that of the inclined arc groove 218, this can prevent the roller 2071 from directly entering the straight groove 214, enabling the roller 2071 to slide smoothly in the inclined arc groove 218, and enabling the roller 2071 to control the rotation of the rotating cylinder 2081. When the roller 2071 moves to the node of the inclined arc groove 218 and the arc groove 219, at this time, the torsion spring 2083 can smoothly drive the rotating cylinder 2081 to reset, and then the roller 2071 rolls to the node position of the arc groove 219 and the straight groove 214. When the aeration equipment stops, the first piston 203 is reset, and then the roller 2071 can squeeze the second spring 2072 to deform as the groove depth of the straight groove 214 decreases. When the pulley enters the inclined arc groove 218, the second spring 2072 drives the roller 2071 to reset and completely enter the inclined arc groove 218. The inclined arc groove 218, the arc groove 219 and the straight groove 214 are arranged on the rotating component 208.

[0023] In this embodiment: Gas is transported through an aeration device, enabling the air pressure to drive the movement of the first piston 203. The first piston 203 drives the movement of the second piston 211 through hydraulic pressure. The second piston 211 drives the movement of the rack 213. The rack 213 is in transmission with the gear 2094 to drive the rotation of the second rotating shaft 2093. The second rotating shaft 2093 drives the rotation of the stirring blade 2091. Moreover, the first piston 203 also drives the movement of the moving component 207 through the piston rod 205, enabling the roller 2071 to slide within the inclined arc groove 218. The roller 2071 drives the rotation of the rotating cylinder 2081 through the inclined surface of the inclined arc groove 218. The rotating cylinder 2081 drives the rotation and movement of the protective cover 216 and the connecting piece 217. When adjusting the aeration pressure of the aeration device, at a relatively large pressure, the first piston 203 continues to advance, while at a relatively small pressure, the first spring 2061 drives the first piston 203 to reset, enabling the stirring blade 2091 to keep rotating during the pressure adjustment, playing a role in agitating the water flow. At the same time, the protective cover 216 and the connecting piece 217 rotate to disturb the sewage, thereby improving the aeration uniformity, promoting oxygen dissolution, and making the aeration effect more significant.

[0024] Embodiment 2: Refer to Figures 9-11 , an A / O sewage treatment device, including a rotating component 208. The rotating component 208 includes a first rotating shaft 2082. Both ends of the first rotating shaft 2082 are rotatably installed in two first bearings 2084. The two first bearings 2084 are fixedly installed on the protective box 2011. The first bearings 2084 can assist the stable rotation of the first rotating shaft 2082, enabling the rotating cylinder 2081 to drive the protective cover 216 to smoothly perform a flipping motion. One side of the first bearing 2084 is fixedly connected with a torsion spring 2083. The torsion force of the torsion spring 2083 can drive the rotating cylinder 2081 to flip downward, enabling the protective cover 216 to play a role in protecting the aeration head 102. One end of the two torsion springs 2083 is fixedly connected to both ends of the rotating cylinder 2081. The rotating cylinder 2081 is fixedly connected to the first rotating shaft 2082, and one end of the rotating cylinder 2081 is fixedly connected to the protective cover 216. The inclined arc groove 218, the arc groove 219, and the straight groove 214 are opened on the rotating cylinder 2081; The moving component 207 includes a telescopic rod 2073 and a second spring 2072. By releasing the restoring force of the second spring 2072, the roller 2071 can smoothly enter the inclined arc groove 218. Both ends of the telescopic rod 2073 and the second spring 2072 are fixedly connected to the piston rod 205 and the roller 2071 respectively. The roller 2071 is located at the connection position of the inclined arc groove 218 and the straight groove 214 at this time; The cleaning component 209 includes a second rotating shaft 2093. A gear 2094 is fixedly connected to the second rotating shaft 2093. The gear 2094 meshes with a toothed rod 213. The second rotating shaft 2093 is rotatably installed in two second bearings 2095. The second bearings 2095 are installed on the piston housing 212. Stirring blades 2091 are fixedly connected to both ends of the second rotating shaft 2093. A brush 2092 is fixedly connected to the middle of the lower stirring blade 2091. The brush 2092 is used to clean the aeration head 102.

[0025] In this embodiment: By stopping the aeration device, the torsion spring 2083 drives the rotating cylinder 2081 to rotate and reset, so that the protective cover 216 flips downward to protect the aeration head 102, reducing the accumulation of sludge on the aeration head 102. At the same time, the first spring 2061 resets and can drive the second piston 211 to reset through hydraulic pressure. The second piston 211 drives the toothed rod 213 to retract and reset, enabling the toothed rod 213 to drive the gear 2094, and further causing the brush 2092 to rotate to clean the aeration head 102. Moreover, this method can automatically clean after shutdown and startup, reducing the problem of blockage of the aeration head 102, thereby ensuring the aeration effect.

[0026] Embodiment 3: Refer to Figures 3-8 and Figure 11 , an A / O sewage treatment device, including an aeration assistance mechanism 200. The aeration assistance mechanism 200 includes two protective components 201 and two bent cylinders 202. The bent cylinders 202 are connected to the air delivery component 101. A rotating component 208 is arranged inside the protective component 201. A protective cover 216 is connected above the rotating component 208. The protective cover 216 is used to protect the aeration head 102. A connecting piece 217 is fixedly connected between two adjacent protective covers 216. The same piston housing 212 is connected above the two protective covers 216. Two cleaning components 209 are arranged on the piston housing 212. The lower part of the cleaning component 209 contacts the aeration head 102. The cleaning component 209 is driven by the toothed rod 213. One end of the toothed rod 213 is fixedly connected to a second piston 211. The two second pistons 211 are arranged in the piston housing 212. Both sides of the piston housing 212 are respectively communicated with the two bent cylinders 202 through hoses 210; A first piston 203 is arranged inside the bent cylinder 202. One side of the first piston 203 is connected to a piston resistance adjustment component 206. A piston rod 205 is fixedly connected to one side of the first piston 203. The piston rod 205 passes through the bent cylinder 202 and is connected to a moving component 207. The bottom of the moving component 207 slides in an inclined arc groove 218, an arc groove 219, and a linear groove 214. The inclined arc groove 218, the arc groove 219, and the linear groove 214 are communicated. The inclined arc groove 218, the arc groove 219, and the linear groove 214 are arranged on the rotating component 208.

[0027] In this embodiment: Gas is transported by starting the aeration equipment. If the aeration head 102 is blocked, the air pressure continuously pushes the first piston 203 to move. The first piston 203 drives the second piston 211 and the rack 213 to move through hydraulic pressure. The rack 213 is in transmission with the cleaning assembly 209, so that the cleaning assembly 209 cleans the aeration head 102 and disturbs the water flow, improving the cleaning effect of the aeration head 102. At the same time, the first piston 203 drives the moving assembly 207 to slide in the inclined arc groove 218 through the piston rod 205, so that the rotating assembly 208 drives the protective cover 216 to flip upward. When the moving assembly 207 moves to the node position of the inclined arc groove 218 and the arc groove 219, at this time the rotating assembly 208 resets, and then the protective cover 216 flips downward for disturbing the flow operation, which is beneficial to dredging the aeration head 102. By adopting this method, the cleaning effect can be effectively improved, it is convenient to automatically dredge the aeration head 102, the operation of efficient aeration can be maintained, and this method can effectively improve the oxygen transfer efficiency, thereby improving the sewage treatment efficiency and reducing the maintenance time at the same time.

[0028] A sewage treatment process of an A / O sewage treatment device includes the following steps: S1. During aeration in the sewage treatment process, gas is transported into the aeration pipe 1012 through the aeration equipment, and the gas is shunted into the bent tube 202. At the same time, a part of the gas is discharged through the aeration head 102 to carry out aeration treatment on the sewage; S2. For the gas entering the interior of the bent tube 202, the movement of the first piston 203 is controlled by air pressure. The first piston 203 drives the first spring 2061 to deform. Since the inner cavity of the bent tube 202 connected to the piston housing 212 through the hose 210 stores liquid, the first piston 203 can input the liquid into the piston housing 212, so that the hydraulic pressure drives the rack 213 to move through the second piston 211. The rack 213 is in transmission with the gear 2094, so that the gear 2094 drives the second rotating shaft 2093 and the stirring blade 2091 to rotate. The stirring blade 2091 disturbs the water flow, and at the same time the brush 2092 rotates to clean the aeration head 102; S3. When the first piston 203 moves, the first piston 203 also drives the piston rod 205 to move. The piston rod 205 drives the moving assembly 207 to move, so that the roller 2071 slides in the inclined arc groove 218, and the roller 2071 squeezes the rotating cylinder 2081 to rotate through the inclined surface of the inclined arc groove 218. The rotating cylinder 2081 drives the torsion spring 2083 to deform. At the same time, the rotating cylinder 2081 drives the protective cover 216 to flip upward to open the aeration head 102, so that the aeration head 102 can smoothly carry out the aeration operation; S4. After the aeration equipment is turned off, the first spring 2061 and the torsion spring 2083 are reset, so that the protective cover 216 flips downward to protect the aeration head 102, and at the same time the brush 2092 rotates again to clean the aeration head 102; S5. When the aeration head 102 is clogged, the air pressure continuously pushes the first piston 203 and the piston rod 205 to move. At the same time, the gear rod 213 and the cleaning assembly 209 are driven by hydraulic pressure to clean the aeration head 102. The gear rod 213 and the cleaning assembly 209 are driven by hydraulic pressure to clean the aeration head 102. The roller 2071 is moved to the node between the oblique arc groove 218 and the arc groove 219. At this time, the torsion spring 2083 is reset, causing the protective cover 216 to flip and reset to clean the turbulent flow, and the roller 2071 is moved to the node between the arc groove 219 and the straight groove 214. S6. The pressure is detected by the pressure sensor equipped with the aeration device. When the aeration head 102 is unblocked, the aeration device is shut down to reset the first spring 2061. The roller 2071 enters the node of the straight groove 214 and the oblique arc groove 218. The aeration device is then restarted to perform the aeration operation. If it is detected that the pressure is still increasing, the aeration device is shut down for maintenance.

[0029] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An A / O sewage treatment device, comprising an aeration treatment mechanism (100), characterized in that, A plurality of aeration auxiliary mechanisms (200) are connected to the aeration treatment mechanism (100); The aeration treatment mechanism (100) includes an air delivery component (101), and a plurality of aeration heads (102) are connected to the air delivery component (101); The aeration auxiliary mechanism (200) includes two protection components (201) and two bent tubes (202). The bent tubes (202) are connected to the air delivery component (101). A rotation component (208) is arranged inside the protection component (201). A protection cover (216) is connected above the rotation component (208). The protection cover (216) is used to protect the aeration heads (102). A connecting piece (217) is fixedly connected between two adjacent protection covers (216). The same piston housing (212) is connected above the two protection covers (216). Two cleaning components (209) are arranged on the piston housing (212). The lower part of the cleaning component (209) contacts the aeration head (102), and the cleaning component (209) is in transmission with a toothed rod (213). One end of the toothed rod (213) is fixedly connected to a second piston (211). The two second pistons (211) are arranged in the piston housing (212). Both sides of the piston housing (212) are respectively communicated with the two bent tubes (202) through hoses (210); A first piston (203) is arranged inside the bent tube (202). One side of the first piston (203) is connected with a piston resistance adjusting component (206), and a piston rod (205) is fixedly connected to one side of the first piston (203). The piston rod (205) penetrates out of the bent tube (202) and is connected to a moving component (207). The bottom of the moving component (207) slides in an inclined arc groove (218), an arc groove (219) and a straight groove (214), and the inclined arc groove (218), the arc groove (219) and the straight groove (214) are communicated. The inclined arc groove (218), the arc groove (219) and the straight groove (214) are arranged on the rotation component (208).

2. The A / O sewage treatment device according to claim 1, characterized in that, The air delivery component (101) includes an aeration pipe (1012). A joint (1011) is installed on the aeration pipe (1012), and a plurality of aeration heads (102) are fixedly installed on the aeration pipe (1012). A plurality of mounting brackets (1013) are also arranged on the aeration pipe (1012).

3. An A / O sewage treatment device according to claim 2, characterized in that, The protection component (201) includes a protection box (2011). The bent tube (202) is installed on the protection box (2011). A soft sealing layer (2012) is installed above the protection box (2011), and the soft sealing layer (2012) is made of pvc material. One end of the protection cover (216) is embedded in the soft sealing layer (2012).

4. An A / O sewage treatment device according to claim 3, characterized in that, Two air bags (215) are arranged above the piston housing (212); The groove depth of the straight groove (214) gradually decreases in the direction of the inclined arc groove (218), so that the groove depth of the straight groove (214) is higher than that of the inclined arc groove (218).

5. An A / O sewage treatment device according to claim 4, characterized in that, The rotating assembly (208) includes a first rotating shaft (2082). Both ends of the first rotating shaft (2082) are rotatably installed in two first bearings (2084). The two first bearings (2084) are fixedly installed on the protective box (2011). One side of the first bearing (2084) is fixedly connected with a torsion spring (2083). One ends of the two torsion springs (2083) are fixedly connected with both ends of the rotating cylinder (2081). The rotating cylinder (2081) is fixedly connected to the first rotating shaft (2082), and the rotating cylinder (2081) is fixedly connected with one end of the protective cover (216). The inclined arc groove (218), the arc groove (219) and the straight groove (214) are formed on the rotating cylinder (2081).

6. An A / O sewage treatment device according to claim 5, characterized in that, The moving assembly (207) includes a telescopic rod (2073) and a second spring (2072). Both ends of the telescopic rod (2073) and the second spring (2072) are fixedly connected with the piston rod (205) and the roller (2071) respectively. The roller (2071) is located at the connection position of the inclined arc groove (218) and the straight groove (214) at this time.

7. An A / O sewage treatment device according to claim 6, characterized in that, The cleaning assembly (209) includes a second rotating shaft (2093). A gear (2094) is fixedly connected to the second rotating shaft (2093). The gear (2094) meshes with the toothed rod (213). The second rotating shaft (2093) is rotatably installed in two second bearings (2095). The second bearings (2095) are installed on the piston housing (212). Both ends of the second rotating shaft (2093) are fixedly connected with stirring blades (2091). And a brush (2092) is fixedly connected to the middle of the lower stirring blade (2091). The brush (2092) is used for cleaning the aeration head (102).

8. An A / O sewage treatment device according to claim 7, characterized in that, The piston resistance adjusting assembly (206) includes an orifice plate (2065) and two adjusting sleeves (2064). The orifice plate (2065) is sleeved on the piston rod (205). And two adjusting rods (2063) are fixedly connected to one side of the orifice plate (2065). The adjusting rods (2063) are fixed in the adjusting sleeves (2064) by bolts. And one ends of the two adjusting rods (2063) are fixedly connected with the same connecting ring (2062). The connecting ring (2062) is sleeved on the piston rod (205). A first spring (2061) is fixedly connected between the connecting ring (2062) and the first piston (203).

9. An A / O sewage treatment device according to claim 8, characterized in that, A retaining ring (204) is fixedly connected inside the bent cylinder (202). The retaining ring (204) is lapped with the first piston (203).

10. The sewage treatment process of an A / O sewage treatment device according to claim 9, characterized in that, Including the following steps: S1. During the aeration process in sewage treatment, air is conveyed into the aeration pipe (1012) through the aeration equipment. The gas is shunted into the bent cylinder (202). At the same time, a part of the gas is discharged through the aeration head (102) to carry out aeration treatment on the sewage; S2. The gas entering the inside of the curved cylinder (202) controls the movement of the first piston (203) through air pressure. The first piston (203) drives the deformation of the first spring (2061). Since the inner cavity of the curved cylinder (202) connected to the piston housing (212) through a hose (210) stores liquid, the first piston (203) can input the liquid into the piston housing (212), enabling the hydraulic pressure to drive the rack (213) to move through the second piston (211). The rack (213) is in transmission with the gear (2094), causing the gear (2094) to drive the second rotating shaft (2093) and the stirring blade (2091) to rotate. The stirring blade (2091) disturbs the water flow, and at the same time, the brush (2092) rotates to clean the aeration head (102). S3. When the first piston (203) moves, the first piston (203) also drives the piston rod (205) to move. The piston rod (205) drives the moving component (207) to move, causing the roller (2071) to slide in the inclined arc groove (218). And the roller (2071) squeezes the rotating cylinder (2081) to rotate through the inclined surface of the inclined arc groove (218). The rotating cylinder (2081) drives the deformation of the torsion spring (2083). At the same time, the rotating cylinder (2081) drives the protective cover (216) to flip upward to open the aeration head (102), thereby enabling the aeration head (102) to smoothly perform the aeration operation. S4. After the aeration device is turned off, the first spring (2061) and the torsion spring (2083) are reset, causing the protective cover (216) to flip downward to protect the aeration head (102). At the same time, the brush (2092) rotates again to clean the aeration head (102). S5. When the aeration head (102) is blocked, the air pressure continuously pushes the first piston (203) and the piston rod (205) to move. At the same time, through the hydraulic pressure, the rack (213) is in transmission with the cleaning component (209) for cleaning. And the roller (2071) moves to the node of the inclined arc groove (218) and the arc groove (219). At this time, the torsion spring (2083) is reset, causing the protective cover (216) to flip and reset for disturbing flow cleaning, and the roller (2071) moves to the node of the arc groove (219) and the straight groove (214). S6. The pressure is detected by the pressure sensor equipped with the aeration device. When the aeration head (102) is unblocked, the aeration device stops running. After the first spring (2061) is reset, the roller (2071) enters the node of the straight groove (214) and the inclined arc groove (218). Then the aeration device starts running again for aeration operation. When it is detected that the pressure is still increasing, the aeration device stops running for maintenance.

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