Energy-saving and environment-friendly sewage treatment system

Abstract

The present application belongs to sewage treatment technical field, especially to a kind of energy-saving and environment-friendly sewage treatment system, including sewage pool, the partition plate is arranged between water storage area and filter area, the coarse grid machine of oblique arrangement is provided in the filter area, the water-collecting pool of trapezoidal shape design is provided below the filter area, rotating assembly is provided in the water-collecting pool corresponding with the water outlet end below the coarse grid machine, the transmission assembly connected with rotating assembly is provided in the partition bin, petal valve is provided on the partition plate corresponding with the coarse grid machine, box is provided in the partition bin close to the partition plate, drive mechanism for driving power to control petal valve free opening and closing for receiving transmission assembly is provided in the box.The present application is reasonable in design, simple in structure and realizes the recovery of kinetic energy in the process of sewage treatment, and feedback to sewage treatment system, to achieve the purpose of cost reduction and efficiency improvement, in line with the production concept of energy saving and environmental protection, meet the use demand.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and in particular relates to an energy-saving and environmentally friendly wastewater treatment system. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering.

[0003] Under the new circumstances, accelerating the sustainable development of my country's social economy is a matter of particular concern to all sectors. Wastewater treatment generates significant energy consumption and pollution; actively incorporating energy-saving and environmentally friendly technologies into wastewater treatment will help my country achieve its energy conservation and emission reduction goals as soon as possible, which is of great significance for promoting the sustainable development of my country's social economy.

[0004] Currently, most treatment methods for industrial wastewater and domestic sewage include the following processes: coarse screen → grit chamber → primary sedimentation → biological treatment → secondary sedimentation → coagulation sedimentation → filtration → disinfection → discharge meeting standards. This process is relatively widely used, especially the coarse screen filtration step, which primarily filters large particulate impurities in the wastewater to ensure the smooth progress of subsequent wastewater treatment. In existing technologies, the coarse screen process for treating impurities in wastewater generally includes a wastewater tank. A coarse screen filtration mechanism arranged at an angle is installed on one side of the wastewater tank. The raising and lowering of vertical valves installed in the wastewater tank guides the wastewater to the coarse screen, achieving a certain degree of impurity filtration in a given quantity of wastewater. In light of existing energy conservation and environmental protection requirements, especially for the opening and closing of vertical valves, which requires the use of motors and corresponding transmission equipment, and considering that the wastewater filtered for impurities has a certain output kinetic energy when it is transported outward, combining this power with the valve drive can achieve cost reduction and efficiency improvement to a certain extent, in line with the concept of energy conservation and environmental protection. However, in the existing technology, there is obviously a lack of equipment to realize this function. Therefore, we provide a reasonably designed, simple, and easy-to-process wastewater treatment system that recovers the kinetic energy generated during the wastewater treatment process and feeds it back into the wastewater treatment system, thereby achieving cost reduction and efficiency improvement to a certain extent, conforming to the production concept of energy conservation and environmental protection, and effectively meeting the needs of users. Summary of the Invention

[0005] This invention addresses the technical problems existing in the coarse screen filtration process mentioned above, and proposes an energy-saving and environmentally friendly wastewater treatment system that is reasonably designed, simple in structure, easy to process, and realizes the recovery of kinetic energy during the wastewater treatment process and feeds it back to the wastewater treatment system. This achieves the goal of cost reduction and efficiency improvement to a certain extent, conforms to the production concept of energy conservation and environmental protection, and effectively meets the needs of use.

[0006] To achieve the above objectives, the present invention adopts an energy-saving and environmentally friendly wastewater treatment system, comprising a wastewater tank, wherein a water storage area and a filtration area are sequentially arranged along the wastewater flow direction in the wastewater tank, and a partition plate is provided between the water storage area and the filtration area. An inclined coarse bar screen is provided in the filtration area, and a partition chamber is also provided in the wastewater tank between two coarse bar screens. A trapezoidal water collection tank is provided below the filtration area, and a rotating component is provided in the water collection tank corresponding to the lower outlet end of the coarse bar screen. A transmission component connected to the rotating component is provided in the partition chamber, and a petal valve is provided on the partition plate corresponding to the coarse bar screen. A housing is provided in the partition chamber near the partition plate, and a drive mechanism is provided inside the housing to receive the driving power of the transmission component to control the free opening and closing of the petal valve.

[0007] Preferably, the lower outlet of the coarse bar screen is provided with a guide plate with a constricted design on the outer side, and the end of the guide plate is provided with a vortex shell with a conical truncated design. The vortex shell is provided with a vortex blade with a stepped spiral design, and the vortex blade has a constricted spiral design from the large opening of the vortex shell to its small opening.

[0008] Preferably, the rotating assembly includes a mounting frame connected to the bottom of the sewage tank, a rotating rod is provided below the mounting frame, a rotating frame is provided on the outer periphery of the rotating rod, a plurality of rotating blades are evenly distributed on the outer side of the rotating frame, and an active disc is also provided on the rotating rod near the transmission assembly.

[0009] Preferably, the transmission assembly includes a support frame installed in the partition compartment, a transmission rod installed on the support frame with both ends extending into the water collection tank, a driven disc installed on the transmission rod located in the water collection tank, a transmission belt installed between the driving disc and the driven disc, and a transmission disc also installed on the transmission rod located in the partition compartment.

[0010] Preferably, the drive mechanism includes a mounting base, on which a main shaft is mounted. A drive disk for receiving the driving power of the transmission disk is mounted on one side of the main shaft, and a rotating disk is mounted on the other side of the main shaft. A first spherical connecting rod is eccentrically mounted on the rotating disk. A limit strip is mounted on one side of the mounting base, and a reciprocating rack is mounted inside the limit strip. A rotating gear is mounted on the reciprocating rack and connected to the petal valve.

[0011] Preferably, the petal valve includes an annular shell with a concave cross-section. A stabilizing frame is provided on the inner side of the annular shell. A cover is provided at one end where multiple stabilizing frames converge. Multiple fan-shaped rotating petals are evenly distributed inside the cover. A rotating shaft is provided on the other side of each rotating petal and passes through the annular shell. A bearing seat is provided on the outer periphery of the annular shell and is connected to the rotating shaft. A connecting plate is provided at the upper end of the rotating shaft. A second spherical connecting rod is provided between two adjacent connecting plates. Two second spherical connecting rods located on the same connecting plate are arranged alternately.

[0012] Preferably, one side of the annular shell is provided with a mounting shell with a concave shape, and a connecting shaft is provided inside the mounting shell. One end of the connecting shaft is connected to a rotating shaft, and the other end is connected to a rotating gear. A protective cover with a C-shaped design is provided on the outer periphery of the annular shell.

[0013] Preferably, a bidirectional spiral auger conveyor is provided above one side of the sewage tank, and a receiving area is provided below the discharge port of the bidirectional spiral auger conveyor.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0015] 1. This invention provides an energy-saving and environmentally friendly wastewater treatment system. A rotating component is used to receive and utilize the kinetic energy of the wastewater during the output process, which is then applied to a transmission component. This transmission component then provides driving power to a drive mechanism, enabling free control of the opening and closing of the petal valve. Simultaneously, the rotating petal, connecting plate, and second spherical connecting rod within the petal valve allow the rotating petal to reciprocate under the action of the drive mechanism, moving from a closed state to a fully open state and back to a closed state. This process repeats cyclically under the drive mechanism, allowing a fixed quantity of wastewater to be output to the filtration zone. After preliminary filtration, the wastewater... The kinetic energy of the wastewater during discharge is recovered and reused, driving the drive mechanism in conjunction with the rotating and transmission components. This process does not involve the input of electricity, realizing the internal circulation of power resources in the wastewater treatment system, which saves electricity resources. Compared with existing technologies, it achieves the goal of cost reduction and efficiency improvement, and meets the technical requirements of energy conservation and environmental protection, fully meeting the needs of production and processing. This device is reasonably designed, simple in structure, and easy to process. It recovers the kinetic energy of the wastewater during treatment and feeds it back to the wastewater treatment system, achieving the goal of cost reduction and efficiency improvement to a certain extent, and conforming to the production concept of energy conservation and environmental protection, effectively meeting the needs of use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some 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 a schematic diagram of an energy-saving and environmentally friendly wastewater treatment system;

[0018] Figure 2 A structural schematic diagram of an energy-saving and environmentally friendly wastewater treatment system from another perspective;

[0019] Figure 3 This is a top view of the structure of an energy-saving and environmentally friendly wastewater treatment system;

[0020] Figure 4 This is a front view of part of the internal structure of an energy-saving and environmentally friendly wastewater treatment system;

[0021] Figure 5 This is a partial cross-sectional schematic diagram of the water guide plate;

[0022] Figure 6 This is a schematic diagram of the drive mechanism;

[0023] Figure 7 for Figure 6 A partially enlarged schematic diagram of the structure at point A;

[0024] In the above figures, 1. Sewage tank; 1a. Water storage area; 1b. Filtration area; 2. Partition plate; 3. Coarse bar screen; 4. Partition chamber; 5. Collection tank; 6. Rotating assembly; 61. Mounting frame; 62. Rotating rod; 63. Rotating frame; 64. Rotating blade; 65. Driven disc; 7. Transmission assembly; 71. Support frame; 72. Transmission rod; 73. Driven disc; 74. Transmission belt; 75. Transmission disc; 8. Petal valve; 81. Ring shell; 82. Stabilizing frame; 83. Cover; 84. Rotating petal; 85. Rotating... 86. Shaft; 87. Connecting plate; 88. Second spherical connecting rod; 9. Bearing housing; 10. Housing; 11. Drive mechanism; 12. Mounting base; 13. Main shaft; 14. Drive disc; 15. Rotating disc; 16. First spherical connecting rod; 17. Limiting strip; 18. Reciprocating rack; 19. Rotating gear; 100. Water guide plate; 12. Vortex shell; 13. Vortex blade; 14. Mounting shell; 15. Connecting shaft; 16. Protective cover; 17. Bidirectional spiral auger conveyor; 18. Receiving area. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Examples, such as Figures 1 to 7As shown, an energy-saving and environmentally friendly wastewater treatment system includes a wastewater tank 1. Within the wastewater tank 1, a water storage area 1a and a filtration area 1b are sequentially arranged along the wastewater flow direction. The water storage area 1a primarily receives the discharged wastewater for subsequent processing. A partition plate 2 is installed between the water storage area 1a and the filtration area 1b. The partition plate 2, corresponding to two sets of coarse bar screens 3, has through holes for placing petal valves 8 to ensure effective transport of the wastewater. The filtration area 1b contains inclined coarse bar screens 3. These coarse bar screens 3 represent existing, mature, and commonly used technology, primarily used to filtration the wastewater... Large particulate impurities are filtered and concentrated for output to ensure the smooth progress of subsequent processing. The specific working principle and method are not detailed here. Furthermore, a partition chamber 4 is installed in the wastewater tank 1 between the two coarse screen machines 3. Its function is to provide effective space for the installation of the transmission assembly 7, thus providing a prerequisite for subsequent kinetic energy recovery. Further, a trapezoidal water collection tank 5 is installed below the filtration zone 1b. This tank primarily stores the pre-filtered wastewater, and then an external lift pump transports the wastewater from the collection tank 5 to the subsequent wastewater treatment equipment, ensuring the continuity of processing. Continuing, a rotating assembly 6 is installed in the water collection tank 5 corresponding to the lower outlet end of the coarse bar screen 3. A transmission assembly 7 connected to the rotating assembly 6 is installed in the partition chamber 4. A petal valve 8 is installed on the partition plate 2 corresponding to the coarse bar screen 3. A box 9 is installed in the partition chamber 4 near the partition plate 2. A drive mechanism 10 is installed in the box 9 to receive the driving power of the transmission assembly 7 to control the free opening and closing of the petal valve 8. Specifically, for the wastewater transported to the sewage tank 1, a portion of the water source can be pre-output into the filtration zone 1b, so that it flows from below the coarse bar screen 3 to the water collection tank 5. The kinetic energy of the water source when outputting into the water collection tank 5 It can be recycled and reused, which can drive the rotating component 6 to rotate. With the cooperation of the rotating component 6 and the transmission component 7, it drives the drive mechanism 10 to run. The drive mechanism 10 can apply the driving power to one side of the petal valve 8, especially to drive each rotating petal 84 to reciprocate and complete the opening and closing, so as to realize the discharge of a certain amount of wastewater. The above steps are repeated. This process does not involve the input of power resources, realizes the internal circulation of power resources in the sewage treatment system, and saves power resources. Compared with the existing technology, it achieves the purpose of cost reduction and efficiency improvement, and meets the technical requirements of energy conservation and environmental protection, fully meeting the needs of production and processing.

[0028] In the above process: the rotating component 6 mainly receives and utilizes the kinetic energy of the wastewater during the output process, which is then used to power the transmission component 7. The transmission component 7 then provides driving power to the drive mechanism 10, thereby enabling free control of the opening and closing of the petal valve 8. Simultaneously, the rotating petal 84, connecting plate 86, and second spherical connecting rod 87 within the petal valve 8 allow the rotating petal 84 to reciprocate under the action of the drive mechanism 10, moving from a closed state to a fully open state and then back to a closed state. This process repeats cyclically under the drive of the drive mechanism 10, ensuring that a fixed amount of wastewater is output to the filtration zone 1b, where it undergoes preliminary filtration. The kinetic energy of the wastewater during discharge is recovered and reused, driving the drive mechanism 10 in conjunction with the rotating component 6 and the transmission component 7. This process does not involve the input of electricity, realizing the internal circulation of power resources in the wastewater treatment system, which saves electricity resources. Compared with existing technologies, it achieves the goal of cost reduction and efficiency improvement, and meets the technical requirements of energy conservation and environmental protection, fully meeting the needs of production and processing. This device is reasonably designed, simple in structure, easy to process, and realizes the recovery of kinetic energy during the wastewater treatment process and feeds it back to the wastewater treatment system, achieving the goal of cost reduction and efficiency improvement to a certain extent, and conforming to the production concept of energy conservation and environmental protection, effectively meeting the needs of use.

[0029] To further enhance the kinetic energy of the filtered wastewater during its output and ensure its recovery and reuse, the following design is implemented: a guide plate 11 with a constricted opening is installed on the outer side of the lower outlet of the coarse screen 3. A vortex shell 12 with a conical truncated shape is installed at the end of the guide plate 11. Inside the vortex shell 12, vortex blades 121 with a stepped spiral design are installed. The vortex blades 121 have a constricted spiral design from the large opening to the small opening of the vortex shell 12. Specifically, the wastewater, after initial filtration of large particles, is discharged from the lower part of the coarse screen 3 and conveyed to the guide plate 11. The wastewater then flows into the vortex shell 12. Under the presence of the vortex blades 121, the wastewater can be discharged more quickly to a certain extent. Furthermore, its outlet direction is located diagonally above the outermost rotating blade 64, ensuring that the wastewater can effectively drive the rotating component 6 to rotate, thereby ensuring the effective recovery and reuse of this part of the kinetic energy. When the rotating component 6 rotates, it can apply the driving power to the transmission component 7, which in turn can drive the drive mechanism 10 to run, realizing free control of the opening and closing of the petal valve 8, especially realizing the outlet of a certain amount of wastewater, providing convenient conditions for subsequent production and processing work; In addition, the vortex shell 12 has the effect of increasing the kinetic energy of wastewater output, and at the same time, it can also relatively increase the specifications of the water collection tank 5 and relatively extend the vertical height of the vortex shell 12, further improving the driving effect of the rotating component 6, so as to fully guarantee its use requirements.

[0030] To effectively recover and utilize the kinetic energy contained in the treated wastewater during its output process and feed it back into the wastewater treatment system, the rotating component 6 includes a mounting frame 61 connected to the bottom of the wastewater tank 1. A rotating rod 62 is located below the mounting frame 61, and a rotating frame 63 is located around the outer periphery of the rotating rod 62. Multiple rotating blades 64 are evenly distributed on the outer side of the rotating frame 63. An active disc 65 is also located on the rotating rod 62 near the transmission component 7. Specifically, after the coarse screen machine 3 performs preliminary filtration of the wastewater, the wastewater is transported from below the coarse screen machine 3 to the collection tank 5. Under the action of the guide plate 11 and the vortex shell 12, the wastewater is output and acts on the rotating blades 64. The continuously output wastewater drives the rotating blades 64 to rotate, thereby realizing the conversion and utilization of the kinetic energy contained in the wastewater during its output process to a certain extent. This drives the active disc 65 to rotate circumferentially. In this way, under the action of the transmission belt 74, the driving power can be applied to the transmission component 7, ensuring the effective output of the driving power.

[0031] To effectively receive and transmit the driving power to the petal valve 8, the transmission assembly 7 includes a support frame 71 installed within the partition chamber 4. A transmission rod 72 is mounted on the support frame 71, with both ends extending into the water collection tank 5. A driven disc 73 is mounted on the transmission rod 72 located in the water collection tank 5. A transmission belt 74 is installed between the driving disc 65 and the driven disc 73. A transmission disc 75 is also mounted on the transmission rod 72 within the partition chamber 4. Specifically, the selected transmission rod 72 can span the entire partition chamber 4 and extend into the water collection tank 5. Alternatively, two transmission rods can be used, with one end connected to the support frame 71. The other end extends into the collection tank 5. Both types of transmission rod 72 can be implemented, but the latter is preferred. This is mainly because the operation of the two sets of coarse bar screens 3 is different, and the separate installation of the two sets of transmission components 7 allows for convenient maintenance work to be carried out to ensure the continuous operation of wastewater treatment. Furthermore, the transmission belt 74 can carry the driving power on the drive disc 65 and apply this power to the transmission rod 72 and the transmission disc 75. Then, the transmission disc 75 transmits the driving power to the drive mechanism 10, effectively ensuring the free opening and closing of the petal valve 8 and ensuring the work process.

[0032] To effectively transmit driving power, especially to enable free opening and closing of the petal valve 8 and ensure the smooth operation of the work, the drive mechanism 10 includes a mounting base 101. A main shaft 102 is mounted on the mounting base 101. A drive disc 103, which receives the driving power from the transmission disc 75, is mounted on one side of the main shaft 102. A rotating disc 104 is mounted on the other side of the main shaft 102. A first spherical connecting rod 105 is eccentrically mounted on the rotating disc 104. The structural components at both ends of the first spherical connecting rod 105 are connected by ball joints, primarily to ensure... The rotating disk 104 can drive the reciprocating rack 107 to reciprocate linearly relative to the limiting strip 106, ensuring that the driving power received by the transmission component 7 from the rotating component 6 effectively acts on the petal valve 8, and realizes the free opening and closing control of it, ensuring the working process and effectively meeting the usage requirements; furthermore, a limiting strip 106 is provided on one side of the mounting base 101, and a reciprocating rack 107 is provided inside the limiting strip 106. A rotating gear 108 is provided on the reciprocating rack 107 and connected to the petal valve 8. Specifically, the mounting base 101 is designed with... The setup is designed to ensure the stability of the drive mechanism 10. The drive disc 103 and transmission disc 75 are connected by a synchronous belt to effectively transmit driving power. After receiving power, the drive disc 103 acts on the rotating disc 104 via the main shaft 102. When the rotating disc 104 rotates, it drives the first spherical connecting rod 105 to reciprocate. This structure is similar to a crank mechanism. When the first spherical connecting rod 105 is running, it drives the reciprocating rack 107 to reciprocate linearly on the limiting bar 106. 7 will mesh with the rotating gear 108, meaning that the ultimate goal of the drive mechanism 10 is to drive the rotating gear 108, especially the connecting shaft 14 and the rotating shaft 85 to reciprocate. The rotation angle under this reciprocating rotation is affected by the size of the rotating disk 104 and the position of the first spherical connecting rod 105. Through the operation of the drive mechanism 10, the rotating shaft 85 can be effectively driven to reciprocate, thereby realizing the free opening and closing of the petal valve 8 for convenient control, greatly improving the functionality of the device and fully meeting the usage requirements.

[0033] To ensure that wastewater can flow from the storage area 1a to the filtration area 1b, thus guaranteeing effective treatment, the petal valve 8 further includes an annular shell 81 with a concave cross-section. A stabilizing frame 82 is located inside the annular shell 81. A cover 83 is located at one end where multiple stabilizing frames 82 converge. Multiple fan-shaped rotating petals 84 are evenly distributed inside the cover 83. A rotating shaft 85 is located on the other side of each rotating petal 84, penetrating the annular shell 81. A bearing seat 88 is located on the outer periphery of the annular shell 81 and connected to the rotating shaft 85. A connecting plate 86 is provided at the upper end of the rotating shaft 85. A second spherical connecting rod 87 is provided between two adjacent connecting plates 86. The two second spherical connecting rods 87 located on the same connecting plate 86 are arranged alternately. Specifically, the cover 83 consists of two parts connected together by bolts. One end of the stabilizer 82 is fixedly connected to the cover 83, and the other end is connected to the ring shell 81 by bolts to ensure the stability of its position. A shaft penetrating into the cover 83 is provided on the side of the rotating petal 84 near the cover 83. Furthermore, the rotating petals 84 are rotatably connected to the cover 83 to ensure smooth rotation. The specifications of the rotating petals 84 can be set to different sizes for different types of wastewater to be treated. Multiple rotating petals 84 of the same size form a cylinder and are adapted to the ring shell 81 to isolate the wastewater. For the rotating shaft 85, the connecting shaft 14 on one of the shafts receives the driving power, which drives the connecting plate 86 to reciprocate. That is, after the rotating petals 84 are fully opened and closed, they are slowly closed again. This reciprocating motion, to a certain extent, achieves quantitative discharge of wastewater, reducing the workload of the coarse screen 3 and ensuring thorough filtration of impurities. Simultaneously, the opening and closing of the petal valve 8 is controlled by the filtered wastewater. This method not only reduces the consumption of electricity but also fully utilizes the kinetic energy during wastewater transport. This cycle ensures wastewater treatment and achieves energy saving and efficiency improvement, greatly enhancing the functionality of the equipment and fully meeting usage requirements.

[0034] To further improve the rationality of the device setup, a concave mounting shell 13 is provided on one side of the annular shell 81. A connecting shaft 14 is provided inside the mounting shell 13. One end of the connecting shaft 14 is connected to the rotating shaft 85, and the other end is connected to the rotating gear 108. The mounting shell 13 provides convenient conditions for the connection between the petal valve 8 and the drive mechanism 10, and in particular, it can realize the effective transmission of driving power and ensure practicality. A C-shaped protective cover 15 is provided on the outer periphery of the annular shell 81. In other words, the protective cover 15 provides sufficient space for the rotation and adjustment of each connecting plate 86 and the second spherical connecting rod 87. In addition, it provides the prerequisites for the installation of the device, effectively meets the usage requirements, and ensures the smooth operation of the filtration work.

[0035] To further improve the functionality of the equipment and effectively collect the filtered impurities, a bidirectional spiral auger conveyor 16 is installed above one side of the sewage tank 1. A receiving area 17 is located below the discharge port of the bidirectional spiral auger conveyor 16. Specifically, the auger conveyor blades inside the bidirectional spiral auger conveyor 16 are arranged in a mirror image. Driven in the same conveying direction, it can respectively receive the impurities output from the two coarse screen machines 3 on the left and right sides, and then transport the impurities from the two locations to the middle location, and then concentrate them for discharge to the receiving area 17. A collection trolley is placed in the receiving area 17 to collect the filtered and discharged impurities and transport them to the next production processing area to ensure the work progress.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An energy-saving and environmentally friendly wastewater treatment system, comprising a wastewater tank, wherein a water storage area and a filtration area are sequentially arranged along the wastewater flow direction within the wastewater tank, a partition plate is provided between the water storage area and the filtration area, and a coarse bar screen is provided in the filtration area, characterized in that, A partition chamber is also provided in the sewage tank between the two coarse bar screens. A trapezoidal water collection tank is located below the filtration zone. A rotating assembly is located in the water collection tank corresponding to the lower outlet end of the coarse bar screen. A transmission assembly connected to the rotating assembly is located in the partition chamber. A petal valve is located on the partition plate corresponding to the coarse bar screen. A housing is located in the partition chamber near the partition plate. A drive mechanism for receiving the driving power of the transmission assembly to control the free opening and closing of the petal valve is located inside the housing. The rotating assembly includes a mounting frame connected to the lower part of the sewage tank. A rotating rod is located below the mounting frame. A rotating frame is located around the outer periphery of the rotating rod. Multiple rotating blades are evenly distributed on the outer side of the rotating frame. A drive disc is also located on the rotating rod near the transmission assembly. The transmission assembly includes a support frame located in the partition chamber. A transmission rod is located on the support frame, with both ends extending into the water collection tank. A driven disc is located on the transmission rod in the water collection tank. A connection is provided between the drive disc and the driven disc. The drive mechanism includes a drive belt and a drive disc on the drive rod located within the partition compartment. The drive mechanism includes a mounting base with a main shaft on it. A drive disc for receiving the drive power from the drive disc is located on one side of the main shaft, and a rotating disc is located on the other side. A first spherical connecting rod is eccentrically mounted on the rotating disc. A limit strip is located on one side of the mounting base, and a reciprocating rack is located within the limit strip. A rotating gear is mounted on the reciprocating rack and connected to a petal valve. The petal valve includes an annular shell with a concave cross-section. A stabilizing frame is located inside the annular shell. A cover is located at one end where multiple stabilizing frames converge. Multiple fan-shaped rotating petals are evenly distributed within the cover. A rotating shaft is located on the other side of each rotating petal and penetrates the annular shell. A bearing seat is located on the outer periphery of the annular shell and connected to the rotating shaft. A connecting plate is located at the upper end of the rotating shaft. A second spherical connecting rod is located between two adjacent connecting plates, and two second spherical connecting rods on the same connecting plate are arranged alternately.

2. The energy-saving and environmentally friendly wastewater treatment system according to claim 1, characterized in that, The lower outlet of the coarse bar screen is provided with a water guide plate with a constricted design. The end of the water guide plate is provided with a vortex shell with a conical truncated design. Inside the vortex shell is a vortex blade with a stepped spiral design. The vortex blade has a constricted spiral design from the large opening of the vortex shell to its small opening.

3. The energy-saving and environmentally friendly wastewater treatment system according to claim 2, characterized in that, One side of the ring shell is provided with a concave mounting shell, and a connecting shaft is provided inside the mounting shell. One end of the connecting shaft is connected to a rotating shaft, and the other end is connected to a rotating gear. A C-shaped protective cover is provided on the outer periphery of the ring shell.

4. The energy-saving and environmentally friendly wastewater treatment system according to claim 1, characterized in that, A bidirectional spiral auger conveyor is installed above one side of the sewage tank, and a receiving area is located below the discharge port of the bidirectional spiral auger conveyor.

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