An overflow-proof microbial wastewater treatment tank

Abstract

This invention discloses an overflow-proof microbial wastewater treatment tank, comprising a tank body, a corridor, an exhaust mechanism, and a double-layer folded membrane mechanism. The double-layer folded membrane mechanism includes an upper plate and a lower plate, both inclined. The lower plate rotates circumferentially around the center of the tank body, pulling the double-layer folded membrane mechanism to unfold and form an inverted conical spiral membrane that seals the upper part of the tank body. The exhaust mechanism uses wind and water flow to discharge waste gas from the lower part of the double-layer folded membrane mechanism. This invention effectively prevents tank water overflow and reduced microbial activity caused by heavy rain, maintaining continuous wastewater treatment and reducing subsequent treatment and production cost losses due to heavy rain.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment, and more specifically to an overflow-proof microbial wastewater treatment tank. Background Technology

[0002] In modern industrial and daily life production, a large amount of wastewater of various types is generated. Currently, most wastewater treatment plants use microbial treatment methods to treat wastewater harmlessly, purifying it into reusable domestic or industrial water. Microbial treatment methods usually employ activated sludge or biofilm processes for wastewater treatment, both of which require cultivating a large number of microorganisms in the tank. These microorganisms degrade the organic matter in the wastewater, converting it into gases such as ammonia, which are then discharged. When there is heavy rain, rainwater entering the tank will change the organic matter content in the tank, affecting the metabolism and degradation efficiency of the microorganisms. After heavy rain, the nitrogen and phosphorus concentrations in the water may rise sharply, affecting the normal metabolism of microorganisms. In addition, heavy rain may also cause the water level in the treatment tank to rise sharply, creating the risk of water overflow.

[0003] For example, a self-defoaming microbial wastewater treatment tank with publication number CN110615522A has the following structure: a tank body, multiple aeration pipes embedded in the inner bottom of the tank body, multiple air outlets communicating with the aeration pipes in the inner bottom of the tank body, a first one-way valve installed in the air outlet, a stainless steel pipe rotatably connected to the center of the inner bottom of the tank body, a slider sealed and slidably connected inside the stainless steel pipe, a water inlet in the upper end of the stainless steel pipe, a second one-way valve installed in the water inlet, multiple spray pipes fixedly connected to the upper end of the stainless steel pipe, and a circular groove communicating with the aeration pipe in the side wall of the tank body. The aforementioned filter uses gas to propel a slider upward within a stainless steel tube to spray water, thus avoiding the high-frequency vibrations that occur when a water pump is operating, thereby improving the defoaming effect. However, it cannot solve the problems of decreased microbial activity and water overflow in the sewage treatment tank during heavy rain. Therefore, this application designs an overflow-proof microbial sewage treatment tank that can seal the upper part of the tank and use gravity and air pressure difference to guide and collect rainwater and discharge waste gas. Summary of the Invention

[0004] The purpose of this invention is to provide an overflow-proof microbial wastewater treatment tank, which aims to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an overflow-proof microbial wastewater treatment tank, comprising a tank body, a corridor bridge, an exhaust mechanism, and a double-layer folded membrane mechanism for sealing the upper part of the tank body; the lower part of the corridor bridge is fixedly connected to the upper end of the tank body, and the double-layer folded membrane mechanism is rotatably connected to the tank body; the double-layer folded membrane mechanism is provided with an upper plate and a lower plate, the exhaust mechanism is rotatably connected to the upper end of the upper plate, one end of the lower plate is slidably connected to the inner wall of the tank body, and the other end of the lower plate is rotatably connected to the middle part of the tank body, the upper plate is fixedly connected to the tank body, and the lower plate is positioned below the upper plate; both the upper and lower plates are inclined; the lower plate rotates circumferentially about the middle part of the tank body, pulling the double-layer folded membrane mechanism to rotate and unfold, so as to form an inverted conical spiral membrane to seal the upper end of the tank body, and the exhaust mechanism is driven by wind and water flow to discharge the waste gas from the tank body below the double-layer folded membrane mechanism.

[0006] The double-layer folded membrane structure, driven by the lower plate, rotates and unfolds in a fan shape, sealing the upper part of the tank. The inclined design of the upper and lower plates creates an inverted conical spiral structure after unfolding, allowing rainwater to flow and collect along the membrane. Simultaneously, the double-layer folded membrane structure provides insulation to the lower part of the tank. Combined with the low temperature and low pressure at the top during heavy rain, this creates a pressure difference between the inside and outside, causing gases generated by microorganisms inside the tank to rise along the membrane and be discharged to the outside of the double-layer folded membrane structure, maintaining normal biological reactions within the tank. This effectively prevents water overflow and reduced microbial activity caused by heavy rain, ensuring continuous wastewater treatment and reducing subsequent treatment and production cost losses due to heavy rain.

[0007] Furthermore, a column is fixedly installed in the middle of the pool. One end of the walkway is fixedly connected to the upper end of the column, and the other end of the walkway is fixedly connected to the side of the pool. A vertical drainage channel is opened inside the side wall of the pool. One end of the upper plate is fixedly connected to the column, and the other end of the upper plate is fixedly connected to the side wall of the pool. One end of the lower plate is rotatably connected to the column. A motor is installed inside the column, and the output end of the motor is inserted into the lower plate. The other end of the lower plate is slidably connected to the side of the pool through a sliding groove. Multiple sets of slide rails are opened in the middle of the column. The double-layer folding membrane mechanism and the exhaust mechanism are both positioned below the walkway.

[0008] Furthermore, the double-layer folded membrane mechanism includes an upper membrane, a lower membrane, side plates, and an array of folding support rods. One end of the upper membrane is connected to the side of the upper plate, and the other end of the upper membrane is connected to the side of the lower membrane. One end of the lower membrane is connected to the side of the upper plate, and the other end of the lower membrane is connected to the side of the lower plate. The upper part of the folding support rod is fixedly connected to the lower wall of the upper membrane, and the lower part of the folding support rod is fixedly connected to the upper wall of the lower membrane. The folding support rods are evenly arranged between the upper plate and the lower plate to form a fan-shaped structure. One end of the folding support rod is slidably connected to the column through a slide rail, and the upper end of the side plate is fixedly connected to the end of the upper plate away from the upper membrane.

[0009] Furthermore, the lower end of the side plate contacts the lower plate, and a locking pin is provided at the lower end of the side plate. An arc-shaped groove corresponding to the locking pin is opened on the upper surface of the lower plate. Both the upper and lower films are provided with fold lines at the folding support rod to facilitate folding. A heating wire is provided on the inner wall of the lower film.

[0010] Furthermore, the exhaust mechanism includes a wind cup, a through groove, a vertical rod, an arc-shaped connecting rod, a turbine, and an auxiliary drive assembly. The through groove is located at the upper end of the upper plate, and the turbine is rotatably connected to the inner wall of the upper plate through the through groove. The lower end of the vertical rod is fixedly connected to the middle of the turbine, the lower end of the arc-shaped connecting rod is fixedly connected to the vertical rod, and the upper end of the arc-shaped connecting rod is fixedly connected to the wind cup. The wind cup and the arc-shaped connecting rod are evenly arranged with multiple arrays around their circumference. The auxiliary drive assembly is inserted into the lower middle of the turbine. The auxiliary drive assembly includes a drive gear, a toothed gear, an impeller, a synchronous belt, a first pulley, and a second pulley. One end of the impeller is rotatably connected to the inner wall of the drainage groove, and the other end of the impeller is inserted into the first pulley through a connecting rod. The second pulley is rotatably connected to the inner wall of the side plate, and the first pulley and the second pulley are connected by a synchronous belt drive. The second pulley is inserted into the toothed gear through a connecting rod, and the upper end of the drive gear is inserted into the middle of the lower end of the turbine through a connecting rod. The drive gear and the toothed gear cooperate with each other.

[0011] The exhaust mechanism utilizes the strong winds during heavy rain to drive the wind cups and rotate the turbine. The pressure difference also helps to expel the exhaust gas from below the double-layer folded membrane mechanism. Furthermore, the rainwater entering the drainage trough generates power, which simultaneously drives the turbine to rotate, enhancing the gas exhaust efficiency. This ensures normal microbial treatment and gas emission in the microbial treatment tank during heavy rain without the need for additional power. At the same time, the wind cups, while providing power, disperse the released ammonia gas, preventing it from accumulating in a small area and posing a danger to personnel performing inspections and maintenance.

[0012] Furthermore, the side plate is connected to the interior of the drainage channel, and the side plate is connected to the interior of the upper plate, with the drive gear positioned inside the upper plate.

[0013] Compared with existing technologies, it has the following beneficial effects:

[0014] The double-layer folded membrane structure, driven by the lower plate, rotates and unfolds in a fan shape, sealing the upper part of the tank. The inclined design of the upper and lower plates creates an inverted conical spiral structure after unfolding, allowing rainwater to flow and collect along the membrane. Simultaneously, the double-layer folded membrane structure provides insulation to the lower part of the tank. Combined with the low temperature and low pressure at the top during heavy rain, this creates a pressure difference between the inside and outside, causing gases generated by microorganisms inside the tank to rise along the membrane and be discharged to the outside of the double-layer folded membrane structure, maintaining normal biological reactions within the tank. This effectively prevents water overflow and reduced microbial activity caused by heavy rain, ensuring continuous wastewater treatment and reducing subsequent treatment and production cost losses due to heavy rain.

[0015] The exhaust mechanism utilizes the strong winds during heavy rain to drive the wind cups and rotate the turbine. The pressure difference also helps to expel the exhaust gas from below the double-layer folded membrane mechanism. Furthermore, the rainwater entering the drainage trough generates power, which simultaneously drives the turbine to rotate, enhancing the gas exhaust efficiency. This ensures normal microbial treatment and gas emission in the microbial treatment tank during heavy rain without the need for additional power. At the same time, the wind cups, while providing power, disperse the released ammonia gas, preventing it from accumulating in a small area and posing a danger to personnel performing inspections and maintenance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an overall schematic diagram of an overflow-proof microbial wastewater treatment tank according to the present invention;

[0018] Figure 2 This is a partially enlarged schematic diagram of an overflow-proof microbial wastewater treatment tank according to the present invention;

[0019] Figure 3 This is a schematic diagram of the upper and lower plates of an overflow-proof microbial wastewater treatment tank according to the present invention.

[0020] Figure 4 This is a schematic diagram of the lower plate and drainage trough of an overflow-proof microbial wastewater treatment tank according to the present invention.

[0021] Figure 5 This is a schematic diagram of the drainage trough of a microbial wastewater treatment tank designed to prevent overflow, according to the present invention.

[0022] Figure 6 This is a schematic diagram of the upper and lower membrane structures of an overflow-proof microbial wastewater treatment tank according to the present invention.

[0023] Figure 7 This is a schematic diagram of the upper and lower plates of an overflow-proof microbial wastewater treatment tank according to the present invention.

[0024] Figure 8 This is a schematic diagram of the venting mechanism of an overflow-proof microbial wastewater treatment tank according to the present invention;

[0025] Figure 9 This is a schematic diagram of the auxiliary drive component structure of an overflow-proof microbial wastewater treatment tank according to the present invention.

[0026] In the diagram: 1-Pool body; 11-Column; 111-Slide rail; 12-Drainage trough; 13-Slide groove; 2-Bridge; 3-Exhaust mechanism; 31-Wind cup; 32-Through groove; 33-Vertical rod; 34-Arc-shaped connecting rod; 35-Turbine; 36-Auxiliary drive assembly; 361-Drive gear; 362-Gear with missing tooth; 363-Impeller; 364-Synchronous belt; 365-First pulley; 366-Second pulley; 4-Double-layer folding membrane mechanism; 41-Upper membrane; 42-Lower membrane; 421-Heating wire; 43-Side plate; 431-Pin; 44-Folding support rod; 5-Upper plate; 6-Lower plate; 61-Arc-shaped slot. Detailed Implementation

[0027] To better understand the structure, functional features, and advantages of the present invention, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

[0028] like Figures 1 to 9 As shown, this application proposes an overflow-proof microbial wastewater treatment tank, including a tank body 1, a corridor bridge 2, an exhaust mechanism 3, and a double-layer folded membrane mechanism 4 that seals the upper part of the tank body 1; the lower part of the corridor bridge 2 is fixedly connected to the upper end of the tank body 1, and the double-layer folded membrane mechanism 4 is rotatably connected to the tank body 1; the double-layer folded membrane mechanism 4 is provided with an upper plate 5 and a lower plate 6, the exhaust mechanism 3 is rotatably connected to the upper end of the upper plate 5, one end of the lower plate 6 is slidably connected to the inner wall of the tank body 1, and the other end of the lower plate 6 is rotatably connected to the middle of the tank body 1, the upper plate 5 is fixedly connected to the tank body 1, and the lower plate 6 is positioned below the upper plate 5. Both the upper plate 5 and the lower plate 6 are inclined; the lower plate 6 rotates circumferentially about the middle of the tank body 1, pulling the double-layer folded membrane mechanism 4 to rotate and unfold, so as to form an inverted conical spiral membrane that seals the upper end of the tank body 1, and the exhaust mechanism 3 is driven by wind and water flow to discharge the waste gas of the tank body 1 below the double-layer folded membrane mechanism 4.

[0029] See Figures 1 to 4 A column 11 is fixedly installed in the middle of the pool body 1. One end of the corridor bridge 2 is fixedly connected to the upper end of the column 11, and the other end of the corridor bridge 2 is fixedly connected to the side of the pool body 1. A vertical drainage channel 12 is opened in the side wall of the pool body 1. Through the corridor bridge 2, the operators can carry out daily inspection and maintenance operations on the inside of the pool body 1 and the double-layer folded membrane mechanism 4. After the double-layer folded membrane mechanism 4 is unfolded, rainwater flows down along the inverted conical spiral membrane to the drainage channel 12 for discharge. The inside of the drainage channel 12 can be connected to the rainwater treatment tank or directly discharge rainwater.

[0030] As another embodiment, such as Figures 1 to 5As shown, one end of the upper plate 5 is fixedly connected to the column 11, and the other end of the upper plate 5 is fixedly connected to the side wall of the pool 1. One end of the lower plate 6 is rotatably connected to the column 11. A motor is installed inside the column 11, and the output end of the motor is inserted into the lower plate 6. The other end of the lower plate 6 is slidably connected to the side of the pool 1 through a slide groove 13. Multiple sets of slide rails 111 are opened in the middle of the column 11. In the initial state, the double-layer folding membrane mechanism 4 is positioned between the upper plate 5 and the lower plate 6 in a folded and stacked form, with the lower plate 6 bearing its weight. A rain sensor is installed on the corridor 2. When it rains, the rain sensor sends an electrical signal to the motor, which starts and drives the lower plate 6 to rotate around the column 11. The far end of the lower plate 6 slides in the slide groove 13 on the inner wall of the pool 1, causing the double-layer folding membrane mechanism 4 to unfold.

[0031] See Figure 2 The double-layer folded membrane mechanism 4 and the exhaust mechanism 3 are both located below the corridor bridge 2, so that when not in use, the double-layer folded membrane mechanism 4 and the exhaust mechanism 3 do not affect the daily use of the microbial treatment tank and the observation of the inside of the tank 1 by the operators. In rainy weather, rainwater will not enter the inside of the tank 1 through the exhaust mechanism 3 due to the obstruction of the corridor bridge 2.

[0032] As another embodiment, such as Figures 1 to 4 as well as Figure 7 As shown, the double-layer folded membrane mechanism 4 includes an upper membrane 41, a lower membrane 42, a side plate 43, and an array of folding support rods 44. One end of the upper membrane 41 is connected to the side of the upper plate 5, and the other end of the upper membrane 41 is connected to the side of the lower membrane 42. One end of the lower membrane 42 is connected to the side of the upper plate 5, and the other end of the lower membrane 42 is connected to the side of the lower plate 6. The upper part of the folding support rod 44 is fixedly connected to the lower wall of the upper membrane 41, and the lower part of the folding support rod 44 is fixedly connected to the upper wall of the lower membrane 42. The folding support rods 44 are evenly arranged between the upper plate 5 and the lower plate 6, forming a fan-shaped structure. One end of the folding support rod 44 is slidably connected to the column 11 via a slide rail 111, and the upper end of the side plate 43 is fixedly connected to the end of the upper plate 5 away from the upper membrane 41. The folding support rods 44 are evenly arranged from top to bottom and have a structure that is narrower near the column 11 and gradually widens as it extends outward. The connection between the folding support rods and the column 11 can also be a circular rotating connection.

[0033] When the lower plate 6 rotates and is displaced, the lower plate 6 drives the upper membrane 41 and the lower membrane 42 to move synchronously, which in turn drives the folding support rod 44 to move in a circular motion, causing the overall structure to unfold. When the lower plate 6 moves in the opposite direction, the overall structure folds back into the space between the upper plate 5 and the lower plate 6.

[0034] The upper membrane 41 and the lower membrane 42 located on the side wall of the pool body 1 are made of rubber, which is not easy to wear and prevents rainwater from falling into the pool body 1 through the gaps, thus achieving an effective sealing effect.

[0035] See Figure 3 and Figure 4 The lower end of the side plate 43 contacts the lower plate 6. A locking pin 431 is provided at the lower end of the side plate 43, and an arc-shaped groove 61 corresponding to the locking pin 431 is provided on the upper surface of the lower plate 6. In the initial state, the lower plate 6 is in contact with the side plate 43. After the lower plate 6 moves and drives the upper membrane 41 and the lower membrane 42 to unfold, the lower plate 6 moves in a circle and moves to the side of the side plate 43 away from the upper plate 5. The locking pin 431 at the lower end of the side plate 43 is engaged with the arc-shaped groove 61, realizing the connection between the lower plate 6 and the side plate 43. When it rains, the rainwater moves along the inverted conical spiral structure formed by the upper membrane 41, and after being limited by the side plate 43, it finally flows along the lower plate 6 into the drainage channel 12.

[0036] See Figure 6 Both the upper membrane 41 and the lower membrane 42 have folds at the folding support rod 44 to facilitate folding, and heating wires are installed on the inner wall of the lower membrane 42. After the upper membrane 41 and the lower membrane 42 are unfolded, they cover the upper part of the pool body 1. Due to the double membrane design, the lower membrane 42 has a certain degree of heat preservation effect. In addition, due to the influence of rainstorm weather, the air pressure and temperature drop, making the air pressure difference between the upper part of the upper membrane 41 and the lower part of the lower membrane 42 more obvious. Gases such as ammonia produced by microorganisms in the pool body 1 are affected by air pressure and rise spirally along the inverted conical spiral structure formed by the lower membrane 42, and are finally discharged at the upper plate 5.

[0037] When the amount of gas at the lower end of the lower membrane 42 is large, or the pressure difference is not significant enough to efficiently discharge the gas, the heating wire 421 can be activated to heat the lower membrane 42 and the air below, making the temperature difference between the upper part of the upper membrane 41 and the lower part of the lower membrane 42 more significant, thus forming a more efficient gas passage.

[0038] As another embodiment, such as Figures 4 to 9 As shown, the exhaust mechanism 3 includes a wind cup 31, a through groove 32, a vertical rod 33, an arc-shaped connecting rod 34, a turbine 35, and an auxiliary drive assembly 36. The through groove 32 is opened at the upper end of the upper plate 5. The turbine 35 is rotatably connected to the inner wall of the upper plate 5 through the through groove 32. The lower end of the vertical rod 33 is fixedly connected to the middle of the turbine 35. The lower end of the arc-shaped connecting rod 34 is fixedly connected to the vertical rod 33. The upper end of the arc-shaped connecting rod 34 is fixedly connected to the wind cup 31. An array of elements is evenly arranged around the circumference of the wind cup 31 and the arc-shaped connecting rod 34. The auxiliary drive assembly 36 is inserted into the lower middle part of the turbine 35.

[0039] Multiple sets of wind cups 31 can be set, along with a corresponding number of arc-shaped connecting rods 34. The through groove 32 is opened at the upper end of the upper plate 5 and the lower end of the corridor bridge 2, so that rainwater will not flow back into the area below the upper plate 5 during rainy weather. Furthermore, the side of the through groove 32 is extended upward to prevent water from the surface of the upper plate 5 from entering the through groove 32.

[0040] After the device is fully deployed, the wind is blocked by the corridor bridge 2 above the wind cup 31. The wind direction usually passes under the corridor bridge 2 at an angle close to the horizontal, driving the wind cup 31 to rotate. The multiple sets of wind cups 31 are arranged in a circle, so that the wind cups 31 can only rotate in one direction. The rotation of the wind cups 31 drives the arc-shaped connecting rod 34 and the vertical rod 33 to rotate synchronously, which in turn drives the turbine 35 to rotate. The rotation of the turbine 35 draws out the ammonia and other gases that have accumulated below the lower plate 6 and discharges them above the upper plate 5. As the gas rises in the channel 32, it assists in driving the arc-shaped connecting rod 34 to rotate and displace. After the gas rises to the outside of the channel 32, it is dispersed and disturbed by the rotating wind cups 31 to prevent it from accumulating in a small area and causing danger to the workers passing through the corridor bridge 2.

[0041] See Figure 5 , Figure 8 as well as Figure 9 The auxiliary drive assembly 36 includes a drive gear 361, a toothed gear 362, an impeller 363, a timing belt 364, a first pulley 365, and a second pulley 366. One end of the impeller 363 is rotatably connected to the inner wall of the drainage trough 12, and the other end of the impeller 363 is inserted into the first pulley 365 via a connecting rod. The second pulley 366 is rotatably connected to the inner wall of the side plate 43. The first pulley 365 and the second pulley 366 are connected by a timing belt 364. The second pulley 366 is inserted into the toothed gear 362 via a connecting rod. The upper end of the drive gear 361 is inserted into the middle of the lower end of the turbine 35 via a connecting rod. The drive gear 361 and the toothed gear 362 cooperate with each other.

[0042] After the device is fully deployed, the water flows downward spirally through the upper membrane 41 and enters the drainage trough 12 along the lower plate 6 under the limitation of the side plate 43. When the water enters the drainage trough 12, the impeller 363 is driven to rotate. The impeller 363 drives the first pulley 365 to rotate. The first pulley 365 transmits the rotation to the second pulley 366 through the synchronous belt 364. The second pulley 366 drives the toothed gear 362 to rotate. During the rotation of the toothed gear 362, it intermittently drives the drive gear 361 to rotate faster. The drive gear 361 synchronously drives the turbine 35 to rotate, providing a second power to the turbine 35.

[0043] The use of a toothed gear 362 ensures that when the rainwater is relatively thin and the water flow is insufficient to drive the impeller 363 to rotate, or to overcome the friction of the transmission system, the toothed gear 362 stops rotating and does not mesh with the drive gear 361, thus not affecting the force of the wind cup 31 driving the turbine 35 to rotate and reducing the gas discharge efficiency.

[0044] It should be noted that the side plate 43 is connected to the inside of the drainage groove 12, and the side plate 43 is connected to the inside of the upper plate 5. The drive gear 361 is located inside the upper plate 5.

[0045] Working principle: Under normal conditions, the double-layer folding membrane mechanism 4 is stored under the corridor bridge 2. The upper membrane 41 and the lower membrane 42 are folded and positioned between the upper plate 5 and the lower plate 6. When the rain sensor detects the set amount of rainwater, the motor starts and drives the lower plate 6 to rotate, unfolding the double-layer folding membrane mechanism 4. The lower plate 6 drives the upper membrane 41 and the lower membrane 42 to move synchronously, which in turn drives the folding support rod 44 to move in a circular motion, thus unfolding the overall structure. The rainwater flows downward along the inverted conical spiral structure formed by the upper membrane 41, and after being limited by the side plate 43, it finally flows along the lower plate 6 into the drainage channel 12.

[0046] Due to the double-layer membrane design, the lower membrane 42 provides a certain degree of heat preservation. In addition, the air pressure and temperature drop due to the rainstorm, making the air pressure difference between the upper part of the upper membrane 41 and the lower part of the lower membrane 42 more obvious. The ammonia and other gases produced by microorganisms in the pool 1 are affected by the air pressure and spiral upward along the inverted conical spiral structure formed by the lower membrane 42, and finally discharged at the upper plate 5. The wind drives the wind cup 31 to rotate, which drives the turbine 35 to rotate through the arc-shaped connecting rod 34 and the vertical rod 33. The rotating turbine 35 draws the ammonia and other gases gathered below the lower plate 6 to the upper plate 5 and discharges them. The rotating wind cup 31 disperses and disturbs the gases.

[0047] When water flows into the drainage trough 12, the impeller 363 is driven to rotate. The impeller 363 drives the first pulley 365 to rotate, which in turn drives the toothed gear 362 to rotate and intermittently drives the drive gear 361 to rotate faster. The drive gear 361 synchronously drives the turbine 35 to rotate, providing a second power to the turbine 35.

[0048] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of the present invention without departing from the scope of the present invention are within the protection scope of the present invention.

Claims

1. An overflow-proof microbial wastewater treatment tank, characterized in that... The system includes a pool body (1), a walkway (2), an exhaust mechanism (3), and a double-layer folded membrane mechanism (4) that seals the upper part of the pool body (1). The lower part of the walkway (2) is fixedly connected to the upper end of the pool body (1), and the double-layer folded membrane mechanism (4) is rotatably connected to the pool body (1). The double-layer folded membrane mechanism (4) is provided with an upper plate (5) and a lower plate (6). The exhaust mechanism (3) is rotatably connected to the upper end of the upper plate (5), one end of the lower plate (6) is slidably connected to the inner wall of the pool body (1), and the other end of the lower plate (6) is connected to the inner wall of the pool body (1). The pool body (1) is rotatably connected in the middle, the upper plate (5) is fixedly connected to the pool body (1), and the lower plate (6) is positioned below the upper plate (5). Both the upper plate (5) and the lower plate (6) are inclined. The lower plate (6) rotates circumferentially about the middle of the pool body (1) to pull the double-layer folding membrane mechanism (4) to rotate and unfold, so as to form an inverted conical spiral membrane to seal the upper end of the pool body (1). The exhaust mechanism (3) is driven by wind and water flow to exhaust the waste gas from the pool body (1) below the double-layer folding membrane mechanism (4). A column (11) is fixedly installed in the middle of the pool body (1). One end of the corridor (2) is fixedly connected to the upper end of the column (11), and the other end of the corridor (2) is fixedly connected to the side of the pool body (1). A vertical drainage trough (12) is opened in the side wall of the pool body (1). One end of the upper plate (5) is fixedly connected to the column (11), and the other end of the upper plate (5) is fixedly connected to the side wall of the pool (1). One end of the lower plate (6) is rotatably connected to the column (11). A motor is installed inside the column (11), and the output end of the motor is inserted into the lower plate (6). The other end of the lower plate (6) is slidably connected to the side of the pool (1) through a sliding groove (13). Multiple sets of slide rails (111) are opened in the middle of the column (11). The double-layer folded film mechanism (4) includes an upper film (41), a lower film (42), a side plate (43), and an array of folding support rods (44). One end of the upper film (41) is connected to the side of the upper plate (5), and the other end of the upper film (41) is connected to the side of the lower film (42). One end of the lower film (42) is connected to the side of the upper plate (5), and the other end of the lower film (42) is connected to the side of the lower plate (6). The upper part of the folding support rods (44) is connected to the side of the upper plate (5). The lower wall of the upper membrane (41) is fixedly connected, and the lower part of the folding support rod (44) is fixedly connected to the upper wall of the lower membrane (42). The folding support rod (44) is evenly arranged between the upper plate (5) and the lower plate (6) to form a fan-shaped structure. One end of the folding support rod (44) is slidably connected to the column (11) through the slide rail (111), and the upper end of the side plate (43) is fixedly connected to the end of the upper plate (5) away from the upper membrane (41). The exhaust mechanism (3) includes a wind cup (31), a through groove (32), a vertical rod (33), an arc-shaped connecting rod (34), a turbine (35), and an auxiliary drive assembly (36). The through groove (32) is opened at the upper end of the upper plate (5). The turbine (35) is rotatably connected to the inner wall of the upper plate (5) through the through groove (32). The lower end of the vertical rod (33) is fixedly connected to the middle part of the turbine (35). The lower end of the arc-shaped connecting rod (34) is fixedly connected to the vertical rod (33). The upper end of the arc-shaped connecting rod (34) is fixedly connected to the wind cup (31). The wind cup (31) and the arc-shaped connecting rod (34) are evenly arranged with an array of arrays around their circumference. The auxiliary drive assembly (36) is inserted into the lower end of the middle part of the turbine (35).

2. The overflow-proof microbial wastewater treatment tank according to claim 1, characterized in that, The double-layer folded membrane mechanism (4) and the exhaust mechanism (3) are both located below the corridor bridge (2).

3. The overflow-proof microbial wastewater treatment tank according to claim 1, characterized in that, The lower end of the side plate (43) contacts the lower plate (6), and a latch (431) is provided at the lower end of the side plate (43). An arc-shaped groove (61) corresponding to the latch (431) is provided on the upper surface of the lower plate (6).

4. The overflow-proof microbial wastewater treatment tank according to claim 1, characterized in that, Both the upper membrane (41) and the lower membrane (42) are provided with folds at the folding support rod (44) to facilitate folding, and the inner wall of the lower membrane (42) is provided with heating wires.

5. The overflow-proof microbial wastewater treatment tank according to claim 1, characterized in that, The auxiliary drive assembly (36) includes a drive gear (361), a toothed gear (362), an impeller (363), a timing belt (364), a first pulley (365), and a second pulley (366). One end of the impeller (363) is rotatably connected to the inner wall of the drainage trough (12), and the other end of the impeller (363) is inserted into the first pulley (365) via a connecting rod. The second pulley (366) is rotatably connected to the inner wall of the side plate (43). The first pulley (365) and the second pulley (366) are connected by the timing belt (364). The second pulley (366) is inserted into the toothed gear (362) via a connecting rod. The upper end of the drive gear (361) is inserted into the middle of the lower end of the turbine (35) via a connecting rod. The drive gear (361) and the toothed gear (362) cooperate with each other.

6. The overflow-proof microbial wastewater treatment tank according to claim 5, characterized in that, The side plate (43) is connected to the inside of the drainage groove (12), the side plate (43) is connected to the inside of the upper plate (5), and the drive gear (361) is positioned inside the upper plate (5).

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