Water resource recycling sewage treatment device

Abstract

The application discloses a water resource recycling sewage treatment device, which comprises a rotating disc arranged in a circular aeration tank, the rotating disc comprising a scraper arm, the scraper arm being provided with an inclined scraping surface arranged in the rotating direction of the rotating disc; each inclined scraping surface is provided with a linear array arranged sludge scattering unit and an aeration unit; the sludge scattering unit comprises at least two sludge scattering impellers arranged along the inclined surface of the inclined scraping surface; the aeration unit comprises an aeration platform symmetrically arranged relative to the two sludge scattering impellers, the aeration platform being provided with a gas outlet narrow opening arranged towards the sludge scattering impeller, so that the sludge scattering impeller is driven to rotate. The sewage treatment device provided by the application is rotated by the rotating disc to scrape the activated sludge on the bottom of the circular aeration tank by the inclined scraping surface, and then the sludge scattering impeller is driven to rotate by the gas outlet narrow opening on the aeration platform, so that the sludge scattering impeller rotates to stir the sludge, and the aeration platform moves along the inclined scraping surface to uniformly aerate the gas outlet narrow opening.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a water resource recycling sewage treatment device. BACKGROUND

[0002] Sewage treatment includes physical treatment, chemical treatment and biological treatment, and common steps of sewage treatment include filtration, sedimentation, coagulation, oxidation, activated carbon adsorption and disinfection, which can effectively reduce the concentration of pollutants, so that the sewage can safely return to the natural environment to realize the recycling of water resources. For the aeration treatment in sewage treatment, air is generally forced into the sewage to make the sewage in the tank contact with the air to be oxygenated and to stir the liquid, thereby accelerating the absorption of oxygen in the liquid, preventing the sinking of suspended objects in the tank, and strengthening the oxidation and decomposition of organic matter in the sewage in the tank. The common aeration tank generally has aeration discs staggered distributed at the bottom of the tank, and the aeration discs are provided with gas outlets to make the gas bubbles float along the bottom of the tank and drive the liquid to surge, thereby driving the dispersion of activated sludge in the tank to accelerate the contact with the water body.

[0003] According to the patent number CN212050769U, published (announced) on December 1, 2020, an aeration disc is disclosed, which comprises: an air inlet pipe, a gas guide ring and an air outlet nozzle; the air inlet pipe is connected with the gas guide ring for transmitting external gas into the gas guide ring, the gas guide ring is uniformly distributed with air outlets along its circumferential direction; the air outlet nozzle is fixed on the air outlet, the air outlet nozzle further comprises an air outlet base, a steel ball and an air outlet cover; the air outlet base is connected with the air outlet, the top of the air outlet base is provided with a spherical surface for placing the steel ball, the air outlet cover is screwed on the air outlet base, and the air outlet cover is provided with an aeration hole.

[0004] The aeration disc includes the above-mentioned patent and the aeration disc in the prior art, and the conventional arrangement of the aeration disc at the bottom of the tank, some sludge cannot be driven to surge by aeration due to long-term settlement at the bottom of the tank, thereby greatly reducing the utilization rate of activated sludge, and the activated sludge deposited at the bottom of the tank for a long time is easy to be caked, and the gas outlets on the general aeration disc are mostly directed to the tank mouth, which is difficult to drive the activated sludge attached to the bottom of the tank, thereby failing to fully utilize the activated sludge. SUMMARY

[0005] The purpose of the present application is to provide a water resource recycling sewage treatment device, which can improve the utilization rate of activated sludge and enhance the biological reaction efficiency of the aeration tank.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a water resource recycling sewage treatment device, comprising a rotating disc arranged in a circular aeration tank, the rotating disc comprising a scraper arm, the scraper arm having an inclined scraping surface arranged in the rotating direction of the rotating disc;

[0007] Each of the inclined scraping surfaces is provided with a linear array of sludge-distributing units and an aeration unit;

[0008] The sludge-distributing units comprise at least two sludge-distributing impellers arranged along the inclined scraping surface;

[0009] The aeration unit comprises an aeration platform symmetrically arranged relative to the two sludge-distributing impellers, the aeration platform being provided with air outlets arranged towards the sludge-distributing impellers to drive the rotation of the sludge-distributing impellers.

[0010] Preferably, the aeration platform is provided with a drainage groove at the top thereof, the drainage groove being arranged obliquely and forming an acute angle with the air outlets.

[0011] Preferably, the aeration platform is provided with a wide cavity at the air outlets, the wide cavity having a cross section larger than that of the air outlets, and the joint between the wide cavity and the air outlets being tapered.

[0012] Preferably, the sludge-distributing units comprise guide seats arranged in a linear array along the inclined scraping surface, the guide seats comprising guide platforms for assembling the sludge-distributing impellers, each of the guide platforms being provided with a guide slope at each end thereof, and the guide slopes of the two guide platforms being arranged adjacently.

[0013] Preferably, the scraping arm further comprises a sleeve and a support seat arranged perpendicularly, the sleeve being rotatably provided with a paddle, and the support seat being axially rotatably provided with an auxiliary impeller, the scraping arm comprising a horizontal surface arranged adjacently to the inclined scraping surface, and the sleeve being fixed to the horizontal surface, the auxiliary impeller being parallel to the shaft of the sludge-distributing impeller.

[0014] Preferably, the scraping arm further comprises a driving mechanism for driving the paddle and the auxiliary impeller to rotate synchronously.

[0015] Preferably, the driving mechanism is used for driving the rotating disc to rotate.

[0016] Preferably, the scraping arm further comprises Z-shaped rods arranged in a circular array on the inner wall of the circular aeration tank, the Z-shaped rods being hingedly provided with a toggle lever, and the toggle lever being driven to reciprocally deflect from the horizontal to one side of the scraping arm.

[0017] Preferably, the rotating disc comprises a plurality of stirring rods arranged relative to the scraping arm, the Z-shaped rods being slidably provided with vertically movable slide rods, and the stirring rods being cooperated with the slide rods during the rotation of the stirring rods to deflect the toggle lever.

[0018] Preferably, the first end of the stirring rod is provided with a scraping rod tangent to the inner wall of the circular aeration tank.

[0019] In the above technical solution, the water resource recycling sewage treatment device has the following beneficial effects: the rotating disc is rotated to scrape the activated sludge at the bottom of the circular aeration tank by the inclined scraping surface, and then the gas outlet nozzle on the aeration table is directed to the sludge scattering impeller, so that the sludge is stirred and rolled by the rotation of the sludge scattering impeller, and the gas impact can also scatter the sludge, so that the sludge is more fully mixed with the water body, and further, since the gas outlet nozzle is directed to the sludge scattering impeller, the gas is scattered when impacting the sludge scattering impeller, so that the oxygen in the gas is more fully absorbed by the water body, and since the aeration table of the aeration unit is arranged on the inclined scraping surface, the aeration table can move with the inclined scraping surface, so that the gas of the gas outlet nozzle is more uniformly distributed in the circular aeration tank. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 The overall structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0022] Figure 2 The overall structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0023] Figure 3 The scraping arm cross-sectional structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0024] Figure 4 The scraping arm cross-sectional structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0025] Figure 5 The support rod seat cross-sectional structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0026] Figure 6 The A enlarged structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0027] Figure 7 The B enlarged structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0028] Figure 8 The C enlarged structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0029] Figure 9 The D enlarged structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0030] Explanation of reference signs:

[0031] 1. Rotating cylinder; 2. Sleeve; 3. Auxiliary impeller; 4. Aeration platform; 5. Guide platform; 6. Aeration blower; 7. Paddle blade; 8. Z-shaped rod; 9. Main motor; 11. Scraper arm; 12. Inclined scraper surface; 13. First connecting cavity; 14. Second connecting cavity; 15. Stirring rod; 16. Curved platform; 17. Connecting channel; 18. Scraper; 21. Support rod seat; 31. Connecting shaft; 32. Second monorail pulley; 33. First monorail pulley; 34. Extension shaft; 35. Fourth wedge gear; 36. Third wedge gear 41. Gear; 42. Drainage groove; 43. Wide cavity; 44. Narrow outlet; 51. Guide slope; 52. Mud-dispersing impeller; 53. Arc groove; 71. Auxiliary shaft; 72. Double-rail pulley; 73. Second wedge gear; 74. First wedge gear; 81. Slide rod; 82. Actuating rod; 83. Main torsion spring; 84. Slide shaft; 85. Waist groove; 91. Third single-rail pulley; 92. Drive gear; 93. Drive shaft; 94. Gear disc; 95. Fourth single-rail pulley; 96. Main shaft; 97. Three-rail pulley assembly. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like Figures 1-9 As shown, a wastewater treatment device for water resource reuse includes a rotating disc installed in a circular aeration tank, which includes a scraper arm 11, the scraper arm 11 having an inclined scraping surface 12 arranged in the direction of rotation of the rotating disc.

[0034] Each inclined scraper surface 12 is equipped with a sludge-loosening unit and an aeration unit arranged in a linear array.

[0035] The sludge-dispersing unit includes at least two sludge-dispersing impellers 52 arranged along the inclined scraping surface 12;

[0036] The aeration unit includes an aeration platform 4 symmetrically arranged about two mud impellers 52. The aeration platform 4 has a narrow air outlet 43 facing the mud impellers 52 so that the mud impellers 52 are agitated and rotated.

[0037] Specifically, the rotating disc includes a rotating cylinder 1, and scraper arms 11 are arranged in a circular array on the outer wall of the rotating cylinder 1. The scraper arms 11 are provided with a connecting channel 17 that connects the air outlet 43 and the rotating cylinder 1. An aeration blower 6 is fixedly installed inside the rotating cylinder 1. The two air outlets 43 respectively blow air onto the adjacent mud-loosening impeller 52, thereby driving the mud-loosening impeller 52 to rotate and agitate the water flow. By using the air blower 6, the air is blown along the connecting channel 17 to the air outlet 43, and then the air blown by the air outlet 43 drives the mud-loosening impeller 52 to rotate.

[0038] Furthermore, the guide table 5 is symmetrically arranged on the inclined scraping surface 12, and the arc-shaped grooves 53 are respectively arranged on the guide table 5, and the mud scattering impellers 52 are respectively arranged in the arc-shaped grooves 53 in the axial direction, and the arc-shaped grooves 53 include low positions and high positions, and the two arc-shaped grooves 53 are symmetrically arranged, and the high positions of the two arc-shaped grooves 53 are adjacent to each other, and the air outlet narrow openings 43 are respectively arranged at the low positions of the arc-shaped grooves 53, and when the air is blown at the air outlet narrow openings 43, the air is blown along the low positions of the arc-shaped grooves 53, so as to drive the mud scattering impellers 52 in the arc-shaped grooves 53 to rotate, and the air blown at the air outlet narrow openings 43 moves along the low positions of the arc-shaped grooves 53 to the high positions of the arc-shaped grooves 53, and since the two high positions are adjacent to each other, the air blown at the two air outlet narrow openings 43 is mixed and impacted at the high positions of the arc-shaped grooves 53 along with the water flow, so as to further impact and scatter the activated sludge, and since the low positions and the high positions of the arc-shaped grooves 53 are arranged, the air blown at the air outlet narrow openings 43 is guided to move along the low positions to the high positions, so as to drive the activated sludge to surge to the pool opening, and the activated sludge is more uniformly scattered in the circular aeration tank.

[0039] Further, the inclined scraping surface 12 is arranged on the scraping arm 11, and when the rotating cylinder 1 is driven to rotate, the inclined scraping surface 12 is arranged on the side of the rotating direction, and the activated sludge at the bottom of the circular aeration tank is scraped by the inclined scraping surface 12 and moved to the inclined scraping surface 12 along with the water flow, and then part of the sludge is driven to be rolled into the mud scattering impeller 52 under the impact of the air outlet narrow opening 43, and the activated sludge is rolled towards the pool opening under the cooperation of the two mud scattering impellers 52, and part of the sludge is rolled to be distributed in the circular aeration tank along with the scraping of the inclined scraping surface 12 and the water flow driven by the mud scattering impeller 52.

[0040] Further, the inclined scraping surface 12 is arranged on the scraping arm 11, and when the rotating cylinder 1 is driven to rotate, the inclined scraping surface 12 is arranged on the side of the rotating direction, and the activated sludge at the bottom of the circular aeration tank is scraped by the inclined scraping surface 12 and moved to the inclined scraping surface 12 along with the water flow, and then part of the sludge is driven to be rolled into the mud scattering impeller 52 under the impact of the air outlet narrow opening 43, and the activated sludge is rolled towards the pool opening under the cooperation of the two mud scattering impellers 52, and part of the sludge is rolled to be distributed in the circular aeration tank along with the scraping of the inclined scraping surface 12 and the water flow driven by the mud scattering impeller 52.

[0041] The driven rotating mode of the rotating cylinder 1 can be that the rotating cylinder 1 is driven to rotate by a motor, or the rotating cylinder 1 is driven to rotate by a gear, a shaft and a corresponding impeller under the impact of the water flow, or any other mode known to those skilled in the art.

[0042] Further, considering the corrosion resistance and structural strength of the rotating cylinder 1, the rotating cylinder 1 is a corrosion-resistant stainless steel cylinder.

[0043] In addition, the sludge-distributing impeller 52 is arranged on the same axis as the aeration platform 4.

[0044] In the above-mentioned technology, the rotating disc rotates to scrape the activated sludge on the bottom of the circular aeration tank by the inclined scraping surface 12, and then the air outlet nozzle 43 on the aeration platform 4 faces the sludge-distributing impeller 52, so that the sludge is stirred by the rotation of the sludge-distributing impeller 52, and the air impact can also scatter the sludge, so as to make the sludge mix with the water more fully. Further, since the air outlet nozzle 43 faces the sludge-distributing impeller 52, the air is scattered when it impacts the sludge-distributing impeller 52, so that the oxygen in the air is more fully absorbed by the water. In addition, the aeration platform 4 of the aeration unit is arranged on the inclined scraping surface 12, so that the aeration platform 4 can move with the inclined scraping surface 12, so that the air of the air outlet nozzle 43 is more evenly distributed in the circular aeration tank.

[0045] As a further embodiment of the present application, a drainage groove 41 is formed on the top of the aeration platform 4 and communicates with the air outlet nozzle 43. The drainage groove 41 is arranged obliquely and forms an acute angle with the air outlet nozzle 43.

[0046] Specifically, by Figure 7 As shown in the figure, the drainage groove 41 is inclined to one side of the inclined surface part of the aeration platform 4. When the activated sludge is scooped up by the inclined scraping surface 12, the activated sludge moves along the inclined scraping surface 12 to the inclined surface part of the aeration platform 4 and to the side of the drainage groove 41. The drainage groove 41 forms an acute angle with the air outlet nozzle 43, and the drainage groove 41 communicates with the air outlet nozzle 43. According to Bernoulli's law, that is, in water flow or air flow, if the speed is small, the pressure is large, and if the speed is large, the pressure is small. It can be seen that when the air is blown out of the air outlet nozzle 43, the flow rate in the air outlet nozzle 43 is large at this time, so the pressure in the air outlet nozzle 43 is small, and thus the activated sludge scooped up by the inclined scraping surface 12 will be sucked into the air outlet nozzle 43 when it moves to the slot of the drainage groove 41, so as to realize the mixing of gas and liquid. Through the mixing of gas and liquid, not only the liquid can impact the sludge-distributing impeller 52, but also the activated sludge sucked can be broken, so as to enhance the dispersion effect of the activated sludge. The aeration platform 4 is fixedly installed on the inclined surface of the inclined scraping surface 12.

[0047] As another embodiment of the present application, a wide cavity 42 is formed on the aeration platform 4 and communicates with the air outlet nozzle 43. The cross section of the wide cavity 42 is larger than that of the air outlet nozzle 43, and the joint part is a tapered structure.

[0048] Specifically, by Figure 7As shown, the cross section of the wide cavity 42 is larger than that of the air outlet narrow mouth 43, and the air flow passage inner diameter of the wide cavity 42 is larger than that of the air outlet narrow mouth 43, thus realizing the Venturi effect. The effect is that the flow rate of the fluid increases when the flow is restricted through the reduced flow section, and the flow rate is inversely proportional to the flow section, i.e. the flow rate increases when the gas flows from the wide cavity to the narrow cavity. The gas flow passage cross section of the air outlet narrow mouth 43 is smaller than that of the wide cavity 42, so that the flow rate of the gas increases when the air flows along the wide cavity 42 to the air outlet narrow mouth 43. In turn, the flow rate of the gas is accelerated to enhance the impact force on the sludge scattering impeller 52.

[0049] Further, the first and second communication cavities 13 and 14 are arranged on the scraper arm 11, the first ends of the first and second communication cavities 13 and 14 are respectively communicated with the two wide cavities 42, and the second ends of the first and second communication cavities 13 and 14 are respectively communicated with the communication channels 17 arranged on the scraper arm 11. When the air blower 6 is used to blow air into the rotating drum 1, the air flows along the communication channels 17 on the scraper arms 11 to the first and second communication cavities 13 and 14, and then flows to the wide cavities 42 and is accelerated at the air outlet narrow mouths 43. The activated sludge scraped by the inclined scraping surface 12 is moved to the notch of the flow guide groove 41, and then is sucked into the air outlet narrow mouth 43 through the flow guide groove 41, so as to realize the mixing of the air and the liquid. The air along the low position of the arc-shaped groove 53 impacts the low position, so as to drive the sludge scattering impeller 52 in the arc-shaped groove 53 to rotate. The air of the air outlet narrow mouth 43 moves along the low position to the high position of the arc-shaped groove 53, and the air of the two air outlet narrow mouths 43 impacts and mixes at the high position of the arc-shaped groove 53, so as to further scatter the activated sludge. The low and high positions of the arc-shaped groove 53 are arranged to guide the air of the air outlet narrow mouth 43 to move from the low position to the high position, so as to drive the activated sludge to overflow to the pool opening, and the activated sludge is more uniformly scattered in the circular aeration tank.

[0050] As another embodiment of the present application, the sludge scattering unit comprises guide seat members arranged in a linear array along the inclined scraping surface 12, and the guide seat members comprise guide platforms 5 for assembling the sludge scattering impellers 52. The left and right ends of the guide platform 5 are respectively provided with a guide inclined surface 51, and the guide inclined surfaces 51 of the two guide platforms 5 are arranged adjacent to each other.

[0051] Specifically, as shown in FIG. 6, the guide seat members are arranged in a linear array along the inclined scraping surface 12, and the guide seat members comprise guide platforms 5 for assembling the sludge scattering impellers 52. The left and right ends of the guide platform 5 are respectively provided with a guide inclined surface 51, and the guide inclined surfaces 51 of the two guide platforms 5 are arranged adjacent to each other. Figure 6 and Figure 7As shown, when the two sludge-distributing impellers 52 are flipped over in the direction of the aeration platforms 4 on both sides under the air-blowing impact of the air outlet narrow opening 43, and then the activated sludge on the arc-shaped groove 53 is rolled and surged toward the pool opening under the combined flipping of the two sludge-distributing impellers 52, due to the high flow speed of the water flow between the two sludge-distributing impellers 52, according to Bernoulli's law, in the water flow or air flow, if the speed is small, the pressure is large, and if the speed is large, the pressure is small. Therefore, the pressure between the two guide platforms 5 is larger than the pressure between the two sludge-distributing impellers 52, and then the water flow between the guide platforms 5 flows to the water flow between the two sludge-distributing impellers 52, and due to the fact that the left and right ends of the guide platforms 5 are both provided with a guide slope 51, and the guide slopes 51 of the two guide platforms 5 are adjacently arranged to form a "V" shape, the activated sludge scooped up by the inclined scraping surface 12 between every two guide seat members is filled in the water flow between the sludge-distributing impellers 52 under the pressure difference between the water flow between the guide platforms 5 and the water flow between the sludge-distributing impellers 52, and then is filled in the guide platforms 5, and flows to the water flow between the sludge-distributing impellers 52 and is driven by the water flow of the sludge-distributing impellers 52 to surge toward the pool opening, and the activated sludge scooped up by the inclined scraping surface 12 flows to the aeration platforms 4 and is sucked into the air outlet narrow opening 43 by the guide groove 41, and is punched into the sludge-distributing impellers 52 by the air blowing, and flows into the inclined scraping surface 12 between the guide seat members and flows to the guide platforms 5, respectively, so that the activated sludge scooped up by the inclined scraping surface 12 is more comprehensively driven to surge, so as to be fully mixed with the water in the circular aeration tank.

[0052] As the most preferred embodiment of the present application, the sleeve 2 and the support rod seat 21 are arranged in a vertical relationship, the paddle 7 is rotatably arranged on the sleeve 2, the auxiliary impeller 3 is axially rotatably arranged on the support rod seat 21, the scraper arm 11 comprises a horizontal surface adjacent to the inclined scraping surface 12, the sleeve 2 is fixed on the horizontal surface, and the auxiliary impeller 3 is parallel to the shaft of the sludge-distributing impeller 52.

[0053] Specifically, the sleeve 2 is fixedly installed on the horizontal surface of the scraper arm 11, the paddle 7 is rotatably arranged on the sleeve 2, and the auxiliary impeller 3 is rotatably arranged on the support rod seat 21, and the auxiliary impeller 3 is rotatably arranged on the support rod seat 21. Figure 3 and Figure 6 As can be seen, the auxiliary impeller 3 is rotatably arranged above the two sludge-distributing impellers 52, and the paddle 7 is rotatably arranged on the top of the sleeve 2. Therefore, when the air blowing machine 6 blows air into the rotating cylinder 1, at this time, the air flows along the communication channels 17 on the plurality of scraper arms 11 to the first communication cavity 13 and the second communication cavity 14, respectively, and then flows to the wide cavity 42 and is accelerated at the air outlet narrow opening 43, and then the activated sludge scooped up by the inclined scraping surface 12 is moved to the slot of the guide groove 41.

[0054] At this time, the gas is sucked into the air outlet 43 through the drainage groove 41, so as to realize the mixing of gas and liquid. At this time, the gas impacts along the low position of the arc-shaped groove 53, so as to drive the rotation of the scattering sludge impeller 52 in the arc-shaped groove 53. At this time, the gas in the air outlet 43 moves along the low position of the arc-shaped groove 53 to the high position of the arc-shaped groove 53, so that the gas in the two air outlets 43 is mixed and impacted at the high position of the arc-shaped groove 53, so as to further impact and scatter the activated sludge.

[0055] Due to the low position and the high position of the arc-shaped groove 53, the gas in the air outlet 43 is guided to move along the low position to the high position, so as to drive the activated sludge to overflow to the pool opening. At the same time, due to the high flow rate of the water flow between the two scattering sludge impellers 52, according to Bernoulli's law, the pressure in the gap between the two guide bases 5 is greater than the pressure between the two scattering sludge impellers 52, so that the water flow between the guide bases 5 flows to the water flow between the two scattering sludge impellers 52. The activated sludge scraped by the inclined scraping surface 12 is filled in the water flow between the two scattering sludge impellers 52 by the pressure difference, so that the activated sludge scraped by the inclined scraping surface 12 between every two guide seats flows into the "V"-shaped entrance formed by the two guide inclined surfaces 51 respectively, and then fills in the gap between the guide bases 5, and flows to the water flow between the two scattering sludge impellers 52 along the water flow between the guide bases 5, and is driven by the water flow of the scattering sludge impeller 52 to overflow to the pool opening. The activated sludge scraped by the inclined scraping surface 12 flows to the aeration platform 4 and is sucked into the air outlet 43 by the drainage groove 41, and is impacted into the scattering sludge impeller 52 by the gas, and flows to the inclined scraping surface 12 between the guide seats respectively, so that the activated sludge scraped by the inclined scraping surface 12 is more comprehensively driven to overflow, so as to be fully mixed with the water in the circular aeration tank. The auxiliary impeller 3 is driven to rotate on the support rod seat 21, and the paddle 7 is driven to rotate on the sleeve 2, so that the activated sludge rotated and overflowed by the scattering sludge impeller 52 is further rotated and overflowed by the auxiliary impeller 3 and the paddle 7, so as to be further accelerated to overflow to the pool opening, so that the activated sludge is more fully scattered and mixed in the aeration tank.

[0056] For the driven rotation of the auxiliary impeller 3 and the paddle 7, the driven rotation mode can be that two motors respectively drive the auxiliary impeller 3 and the paddle 7 to rotate, or that the auxiliary impeller 3 and the paddle 7 are simultaneously driven to rotate by gears, shafts and motors, or other modes known to those skilled in the art.

[0057] As another embodiment of the present application, a driving mechanism for driving the paddle 7 and the auxiliary impeller 3 to rotate synchronously is further included.

[0058] Specifically, the driving mechanism comprises a main shaft 96 arranged in the rotating cylinder 1 in the vertical direction, a three-track wheel 97 is fixedly installed on the top of the main shaft 96, an auxiliary shaft 71 is arranged in the sleeve 2 on each scraping arm 11 in the axial direction, and the paddle 7 is fixedly installed on the top of the auxiliary shaft 71, an extension shaft 34 is arranged in the axial direction in the support rod seat 21, a first bevel gear 74 is fixedly installed on the first end of the extension shaft 34, and the second bevel gear 73 fixedly installed on the outer wall of the auxiliary shaft 71 is engaged with the first bevel gear 74, a first single-track wheel 33 is fixedly installed on the second end of the extension shaft 34, a connecting shaft 31 is rotatably arranged in the support rod seat 21, a second single-track wheel 32 is fixedly installed on the first end of the connecting shaft 31, and the second single-track wheel 32 and the first single-track wheel 33 are belt-driven, a third bevel gear 36 is fixedly installed on the second end of the connecting shaft 31, and the fourth bevel gear 35 fixedly installed on the first end of the auxiliary impeller 3 is engaged with the third bevel gear 36.

[0059] As shown in Figure 3 , Figure 4 and Figure 9 , the bottom of the auxiliary shaft 71 is fixedly installed with a double-track wheel 72, every two double-track wheels 72 in the scraping arm 11 are belt-driven, and the double-track wheels 72 close to the main shaft 96 in the scraping arm 11 are belt-driven with the three-track wheel 97, so that Figure 3 , Figure 4 and Figure 9 can be known that when the main shaft 96 is driven to rotate, the main shaft 96 drives the double-track wheels 72 close to the three-track wheel 97 to rotate at this time, and then the double-track wheels 72 are belt-driven to drive multiple double-track wheels 72 to rotate with the main shaft 96 at the same time, at this time the auxiliary shaft 71 rotates in the sleeve 2, and the paddle 7 is rotatably arranged on the top of the sleeve 2, because the auxiliary shaft 71 rotates, the second bevel gear 73 and the first bevel gear 74 are engaged at this time, and the auxiliary shaft 71 drives the extension shaft 34 to rotate, when the extension shaft 34 rotates, the second single-track wheel 32 and the first single-track wheel 33 are belt-driven at this time, and the extension shaft 34 drives the connecting shaft 31 to rotate, when the connecting shaft 31 rotates, the third bevel gear 36 and the fourth bevel gear 35 are engaged at this time, and the connecting shaft 31 drives the auxiliary impeller 3 to rotate on the support rod seat 21, and the main shaft 96 drives multiple paddles 7 to rotate on the top of the sleeve 2 at the same time, and drives multiple auxiliary impellers 3 to rotate on the support rod seat 21 at the same time.

[0060] For the driven rotation of the main shaft 96, the driven rotation mode can be motor-driven rotation, or the main shaft 96 can be driven to rotate by the potential energy of the water flow and the corresponding gear of the impeller, or the driven rotation mode of the main shaft 96 known to those skilled in the art.

[0061] As another embodiment provided by the present application, the driving mechanism is used to drive the rotating disc to rotate.

[0062] Specifically, the driving mechanism further comprises a main motor 9 and a driving shaft rod 93 fixedly installed at the output end of the main motor 9, a third single-track wheel 91 fixedly installed on the outer wall of the driving shaft rod 93, and a driving gear 92 fixedly installed at the first end of the driving shaft rod 93. The outer wall of the rotating cylinder 1 is fixedly installed with a gear disc 94, and the driving gear 92 and the gear disc 94 are in meshing transmission. The bottom of the main shaft rod 96 is fixedly installed with a fourth single-track wheel 95, and the fourth single-track wheel 95 and the third single-track wheel 91 are in belt transmission. For the installation of the circular aeration tank and the main motor 9, a concrete base can be provided, and an installation groove is formed in the concrete base. The main motor 9 is fixedly installed in the installation groove of the concrete base. The circular tank wall is stacked on the concrete base. The corresponding sealing metal plate is covered in the installation groove to seal the main motor 9, and the rotating cylinder 1 is rotatably arranged on the sealing metal plate.

[0063] When the main motor 9 is turned on, the driving shaft rod 93 rotates under the driving of the main motor 9 to make the driving gear 92 and the gear disc 94 in meshing transmission, and the fourth single-track wheel 95 and the third single-track wheel 91 in belt transmission, so that the rotating cylinder 1 is rotatably arranged at the bottom of the circular aeration tank, and the main shaft rod 96 is rotatably arranged in the rotating cylinder 1. At this time, the main shaft rod 96 rotates to drive the double-track wheels 72 close to the three-track wheel 97 to rotate, respectively. Then, the double-track wheels 72 are in belt transmission to simultaneously drive multiple double-track wheels 72 to rotate by the main shaft rod 96. At this time, the auxiliary shaft rod 71 is rotatably arranged in the sleeve 2, so that the paddle 7 is rotatably arranged at the top of the sleeve 2. Since the auxiliary shaft rod 71 rotates, the second bevel gear 73 and the first bevel gear 74 are in meshing transmission, so that the auxiliary shaft rod 71 drives the extension shaft rod 34 to rotate, respectively. When the extension shaft rod 34 rotates, the second single-track wheel 32 and the first single-track wheel 33 are in belt transmission, so that the extension shaft rod 34 drives the connecting shaft rod 31 to rotate. When the connecting shaft rod 31 rotates, the third bevel gear 36 and the fourth bevel gear 35 are in meshing transmission, so that the connecting shaft rod 31 drives the auxiliary impeller 3 to rotate on the support rod seat 21. Then, the main shaft rod 96 rotates to simultaneously drive multiple paddles 7 to rotatably arranged at the top of the sleeve 2, and simultaneously drive multiple auxiliary impellers 3 to rotatably arranged on the support rod seat 21. Figure 3 and Figure 5As shown, when the auxiliary impeller 3 rotates, the auxiliary impeller 3 rotates towards the side of the paddle 7 at this time, and the paddle 7 rotates to drive the water flow and the activated sludge to surge towards the pool opening. Through the rotation of the auxiliary impeller 3, not only the activated sludge between the scattered sludge impellers 52 is accelerated to be upturned, but also part of the activated sludge is upturned to the lower side of the paddle 7, and then under the rotation of the paddle 7, the part of the activated sludge upturned by the auxiliary impeller 3 is further accelerated to upsurge.

[0064] As further provided by the present application, another embodiment also includes a Z-shaped rod 8 arranged in a circular array on the inner wall of the circular aeration tank, and a poking rod 82 is hingedly arranged on the Z-shaped rod 8, and the poking rod 82 is driven to reciprocally deflect from the horizontal to the side of the scraper arm 11.

[0065] Specifically, as shown in the figure, Figure 2 The rotating cylinder 1 is arranged vertically perpendicular to the bottom of the circular aeration tank, and the stirring rods 15 are vertically distributed on the outer wall of the rotating cylinder 1, and are fixedly installed on the inner wall of the circular aeration tank through the Z-shaped rod 8, and the poking rod 82 is hingedly arranged on the Z-shaped rod 8, and when the poking rod 82 is in the initial position, it is parallel to the stirring rod 15 to be distributed in the horizontal direction, and the poking rod 82 is driven to deflect from the horizontal to the side of the scraper arm 11, and then is driven again to reset from the deflection direction to the side of the scraper arm 11 to the horizontal, so as to reciprocally stir the water body by the poking rod 82, thereby enhancing the flowability of the activated sludge in the water body.

[0066] For the poking rod 82 driven to reciprocally stir the water body, the driven reciprocating turning mode can be a motor and gear cooperation connecting rod to reciprocally pull the poking rod 82 to turn, or an electric push rod to reciprocally pull and push the poking rod 82 to turn, or any other known way to reciprocally turn the poking rod 82 by those skilled in the art.

[0067] As further provided by the present application, the rotating disc includes a plurality of stirring rods 15 arranged opposite to the scraper arm 11, and a vertically movable sliding rod 81 is slidingly arranged on the Z-shaped rod 8, and the stirring rod 15 cooperates with the sliding rod 81 during rotation to deflect the poking rod 82.

[0068] Specifically, as shown in the figure, Figure 8As shown, the toggle lever 82 is provided with a waist groove 85, and the slide rod 81 slidingly arranged on the Z-shaped rod 8 is fixedly installed with a slide shaft 84, which is slidingly arranged in the waist groove 85. The hinge shaft of the toggle lever 82 is sleeved with a main torsional spring 83, the first end of which is fixedly installed on the toggle lever 82, and the second end of which is fixedly installed on the Z-shaped rod 8. The bottom of the stirring rod 15 is provided with a curved table 16, and the top of the slide rod 81 is located on the movement path of the curved table 16. The main torsional spring 83 is used to drive the toggle lever 82 to adhere to the Z-shaped rod 8 to maintain a horizontal state. When the rotating cylinder 1 is driven to rotate, the stirring rod 15 is rotatingly arranged in the circular aeration tank at this time, and the water in the aeration tank is stirred. When the stirring rod 15 moves above the Z-shaped rod 8, the curved table 16 provided at the bottom of the stirring rod 15 at this time drives the top of the slide rod 81, and then the slide rod 81 slides downward on the Z-shaped rod 8. At this time, the slide rod 81 slides downward to slidingly arrange the slide shaft 84 in the waist groove 85, and then drives the toggle lever 82 to flip from horizontal to one side of the scraping arm 11. When the stirring rod 15 is separated from the Z-shaped rod 8, the main torsional spring 83 drives the toggle lever 82 to reset and flip and adhere to the Z-shaped rod 8 to maintain a horizontal state. The rotating cylinder 1 outer wall is provided with a plurality of stirring rods 15, which continuously pass through the Z-shaped rod 8, so that the slide rod 81 is continuously driven, so that the toggle lever 82 can reciprocatingly flip to drive the water.

[0069] As a further provided optimal embodiment of the present application, the first end of the stirring rod 15 is provided with a scraping rod 18 tangent to the inner wall of the circular aeration tank.

[0070] Specifically, when the main motor 9 is turned on, the driving shaft 93 is rotated under the driving of the main motor 9 to drive the gear 92 and the gear disc 94 to mesh and transmit, and the fourth single-track pulley 95 and the third single-track pulley 91 are transmitted by the belt, so that the rotating cylinder 1 is rotated and arranged at the bottom of the circular aeration tank. When the rotating cylinder 1 is rotated and arranged at the bottom of the circular aeration tank, the inclined scraping surface 12 is arranged on the side of the rotating direction, and the inclined scraping surface 12 is used to shovel the activated sludge at the bottom of the circular aeration tank and move to the inclined scraping surface 12 with the water flow, and the main shaft 96 is rotated and arranged in the rotating cylinder 1. At this time, the main shaft 96 is rotated to drive the double-track pulley 72 close to the three-track pulley 97, and then the double-track pulley 72 is transmitted by the belt to drive the plurality of double-track pulleys 72 to rotate by the main shaft 96. At this time, the auxiliary shaft 71 is rotated in the sleeve 2, and the paddle 7 is rotated and arranged at the top of the sleeve 2. Because the auxiliary shaft 71 is rotated, the second bevel gear 73 and the first bevel gear 74 are meshed, and the auxiliary shaft 71 drives the extension shaft 34 to rotate. When the extension shaft 34 is rotated, the second single-track pulley 32 and the first single-track pulley 33 are transmitted by the belt, and the extension shaft 34 drives the connecting shaft 31 to rotate. When the connecting shaft 31 is rotated, the third bevel gear 36 and the fourth bevel gear 35 are meshed, and the connecting shaft 31 drives the auxiliary impeller 3 to rotate on the support rod seat 21. The main shaft 96 is rotated to drive the plurality of paddles 7 to rotate and be arranged at the top of the sleeve 2, and the plurality of auxiliary impellers 3 are rotated on the support rod seat 21. The rotating cylinder 1 is rotated to drive the stirring rod 15 to rotate and be arranged in the circular aeration tank with the rotating cylinder 1, so as to further stir the water in the aeration tank. When the stirring rod 15 moves to the upper side of the Z-shaped rod 8, the curved table 16 arranged at the bottom of the stirring rod 15 pushes the top of the slide rod 81, so as to make the slide rod 81 slide on the Z-shaped rod 8. At this time, the slide rod 81 slides in the waist groove 85, so as to drive the push rod 82 to flip down. When the stirring rod 15 is separated from the Z-shaped rod 8, the main torsional spring 83 drives the push rod 82 to reset and flip to adhere to the Z-shaped rod 8 to keep the horizontal state. The plurality of stirring rods 15 continuously pass through the Z-shaped rod 8, so as to continuously push the slide rod 81, thereby driving the push rod 82 to reciprocatingly flip to push the water and stir the water, so as to enhance the flowability of the activated sludge in the water. When the stirring rod 15 rotates in the water, the scraper 18 arranged at the first end of the stirring rod 15 is tangent to the inner wall of the circular aeration tank, so as to scrape the activated sludge attached to the inner wall of the circular aeration tank, and make the scraped activated sludge mix in the aeration tank again.

[0071] At this time, the aeration blower 6 is turned on, and the aeration blower 6 blows air into the rotating drum 1. The air flows along the communication channels 17 on the plurality of scraper arms 11 to the first communication cavity 13 and the second communication cavity 14, respectively, and then flows to the wide cavity 42 and is accelerated at the air outlet narrow opening 43. The activated sludge scooped up by the inclined scraper surface 12 is moved to the slot of the flow guide groove 41, and then is sucked into the air outlet narrow opening 43 through the flow guide groove 41, thereby realizing the mixing of gas and liquid. The air along the low position of the arc-shaped groove 53 impacts, thereby driving the scattered sludge impeller 52 in the arc-shaped groove 53 to rotate. The air of the air outlet narrow opening 43 moves along the low position of the arc-shaped groove 53 to the high position of the arc-shaped groove 53. Since the two high positions are on the adjacent side, the air of the two air outlet narrow openings 43 is mixed and impacted at the high position of the arc-shaped groove 53, thereby further impacting and scattering the activated sludge. Since the low position and the high position of the arc-shaped groove 53 are arranged to guide the air of the air outlet narrow opening 43 to move along the low position to the high position, the activated sludge is driven to overflow to the pool opening. Since the flow speed between the two scattered sludge impellers 52 is large, according to Bernoulli's law, the pressure in the gap between the two guide tables 5 is greater than the pressure between the two scattered sludge impellers 52. The water flow between the two guide tables 5 flows between the two scattered sludge impellers 52. The activated sludge scooped up by the inclined scraper surface 12 is subjected to the pressure difference between the water flow between the two scattered sludge impellers 52 and the water flow between the two guide tables 5, so that the activated sludge scooped up by the inclined scraper surface 12 between every two guide seats flows into the "V"-shaped entrance formed by the two guide inclined surfaces 51, and then fills between the two guide tables 5 and flows between the two scattered sludge impellers 52 with the water flow between the two guide tables 5, and is driven by the water flow of the scattered sludge impeller 52 to overflow to the pool opening. The activated sludge scooped up by the inclined scraper surface 12 flows to the aeration table 4 and is sucked into the air outlet narrow opening 43 by the flow guide groove 41, and is driven to overflow to the pool opening, so that the activated sludge scooped up by the inclined scraper surface 12 is more fully driven to overflow, so that it is fully mixed with the water in the circular aeration tank.

[0072] As shown in Figure 3 and Figure 5 When the auxiliary impeller 3 rotates, the auxiliary impeller 3 rotates towards the paddle 7 side, and the paddle 7 rotates to drive the water flow and the activated sludge to overflow to the pool opening. The rotation of the auxiliary impeller 3 not only accelerates the upward overflow of the activated sludge between the scattered sludge impellers 52, but also part of the activated sludge is overflowed below the paddle 7, and then is further accelerated to overflow by the rotation of the paddle 7. The rotation of the paddle 7 itself can also enhance the upward overflow power of the water body, and then cooperate with the air blowing and aeration of the aeration blower 6 to enhance the fluidity of the water body.

[0073] The foregoing merely illustrates some exemplary embodiments of the application, and it will be appreciated that those skilled in the art will be able to devise various modifications without departing from the spirit and scope of the application. The appended drawings and description are illustrative only, and are not intended to be limiting.

Claims

1. A water resource recycling sewage treatment apparatus, characterized by, The invention relates to a rotating disc provided in a circular aeration tank, which comprises a scraper arm (11) with an inclined scraping surface (12) arranged in the direction of rotation of the rotating disc; Each of the inclined scraping surfaces (12) is provided with a linear array of sludge-distributing units and aeration units; The sludge-distributing units comprise at least two sludge-distributing impellers (52) arranged along the inclined scraping surface (12); The aeration units comprise aeration platforms (4) symmetrically arranged with respect to the two sludge-distributing impellers (52), the aeration platforms (4) being provided with air outlet slots (43) arranged towards the sludge-distributing impellers (52) to drive the rotation of the sludge-distributing impellers (52); The aeration platforms (4) are provided with drainage grooves (41) on the top thereof, which are in communication with the air outlet slots (43) and are arranged at an acute angle with respect to the air outlet slots (43); The sludge-distributing units comprise guide seats arranged in a linear array along the inclined scraping surface (12), the guide seats comprising guide platforms (5) for assembling the sludge-distributing impellers (52), the left and right ends of the guide platforms (5) being provided with guide inclined surfaces (51), and the guide inclined surfaces (51) of the two guide platforms (5) being adjacently arranged; The aeration platforms (4) are provided with wide cavities (42) in communication with the air outlet slots (43), the cross section of the wide cavities (42) being larger than that of the air outlet slots (43), and the joint part being of a tapered structure; Air is introduced into the wide cavities (42) and then into the air outlet slots (43); The scraper arm (11) is provided with a first communication cavity (13) and a second communication cavity (14), the first ends of the first and second communication cavities (13, 14) being in communication with the two wide cavities (42), respectively, and the second ends of the first and second communication cavities (13, 14) being in communication with the communication channels (17) provided on the scraper arm (11), respectively.

2. A water resource recycling sewage treatment device according to claim 1, characterized in that, The invention further comprises a sleeve (2) and a support rod seat (21) arranged in a perpendicular relationship, the sleeve (2) being rotatably provided with a paddle (7), and the support rod seat (21) being axially rotatably provided with an auxiliary impeller (3), the scraper arm (11) comprising a horizontal surface arranged adjacent to the inclined scraping surface (12), and the sleeve (2) being fixed to the horizontal surface, the auxiliary impeller (3) being parallel to the shaft of the sludge-distributing impeller (52).

3. A water resource recycling sewage treatment device according to claim 2, characterised in that, The invention further comprises a driving mechanism for driving the paddle (7) and the auxiliary impeller (3) to rotate synchronously.

4. A water resource recycling sewage treatment device as claimed in claim 3, wherein The driving mechanism is used for driving the rotating disc to rotate.

5. The water resource recycling sewage treatment device according to claim 1, characterized in that, The invention further comprises Z-shaped rods (8) arranged in a circular array on the inner wall of the circular aeration tank, the Z-shaped rods (8) being hingedly provided with a deflecting rod (82), and the deflecting rod (82) being driven to reciprocatingly deflect from the horizontal to one side of the scraper arm (11).

6. A water resource recycling sewage treatment device as claimed in claim 5 wherein, The rotating disc comprises a plurality of stirring rods (15) arranged opposite to the scraper arm (11), the Z-shaped rods (8) being slidably provided with vertically movable slide rods (81), and the stirring rods (15) being cooperated with the slide rods (81) during rotation to deflect the deflecting rod (82).

7. A water resource recycling sewage treatment device as claimed in claim 6 wherein, The first end of the stirring rod (15) is provided with a scraping rod (18) tangent to the inner wall of the circular aeration tank.

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