Sewage purification treatment device

Abstract

The present application relates to sewage purification technical field, especially sewage purification treatment device, including support frame, water outlet cylinder, first filter module, water inlet cylinder and second filter module, water outlet cylinder is fixed in support frame, water inlet cylinder is located in the water inlet side of water outlet cylinder, water supply unit supplies sewage into water inlet cylinder, then from the water outlet of water inlet cylinder into the inside of water outlet cylinder, first filter module is fixed in the water inlet of water outlet cylinder, first filter module can filter the sewage that enters water outlet cylinder, second filter module is fixed in the inside of water outlet cylinder, the sewage that is filtered by first filter module enters water outlet cylinder, then can be filtered again by second filter module, realize the efficient purification of sewage, because sewage purification treatment device is also provided with lifting drive module, when carrying out the desilting work of first filter module, lifting drive module drives water inlet cylinder to rise and away from first filter module, and then the desilting of first filter module is convenient.

Description

Technical Field

[0001] This invention relates to the field of wastewater purification technology, and in particular to a wastewater purification treatment device. Background Technology

[0002] With the rapid pace of modernization, industrial wastewater is increasing year by year due to numerous pollution sources and large discharge volumes. To prevent wastewater from polluting the environment and to facilitate its recycling, wastewater needs to be pre-filtered and purified by purification devices before it can be discharged and reused.

[0003] For example, the patent document with publication number CN209108713U discloses a two-stage cylindrical filter for sewage pumps. This filter is equipped with a primary filter screen and a secondary filter screen. The sewage that is introduced can be efficiently purified after being filtered by the primary filter screen and the secondary filter screen in sequence.

[0004] Although existing filtration and purification equipment can achieve efficient purification of sewage through multi-stage filtration, the sewage filtered by the first-stage filter contains a large amount of silt, which can easily clog the first-stage filter. Therefore, the first-stage filter needs to be cleaned regularly. However, since the filter is usually located inside the purification equipment, cleaning the first-stage filter is inconvenient. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a sewage purification treatment device to solve the technical problem that the filter screen of the sewage purification treatment device in the prior art is inconvenient to clean.

[0006] To achieve the above-mentioned technical objectives, the present invention provides a wastewater purification and treatment device, comprising:

[0007] Support frame;

[0008] The water outlet cylinder is fixed to the support frame;

[0009] The first filtration module is installed at the inlet of the water outlet cylinder and is used to filter the sewage entering the water outlet cylinder;

[0010] A water inlet cylinder is located on the side of the water inlet of the water outlet cylinder, and a water outlet is provided at the end of the water inlet cylinder near the water outlet cylinder. The water outlet is used to connect to the water inlet.

[0011] The second filtration module is fixed inside the water outlet cylinder and is used to filter the wastewater filtered by the first filtration module.

[0012] A lifting drive module is connected to the water inlet cylinder and is used to drive the water inlet cylinder to move so that one end of the water inlet cylinder is connected to or away from the first filter module.

[0013] Optionally, the lifting drive module includes a lifting drive motor and a lead screw. The lead screw is rotatably connected to the support frame and extends in the height direction of the support frame. The lifting drive motor is fixed to the support frame and connected to the lead screw to drive the lead screw to rotate. The water inlet cylinder is fixed with a connecting frame, and the connecting frame is threaded to the lead screw.

[0014] Optionally, the surface of the inlet cylinder is provided with a plurality of dissolved oxygen ports, the inlet of the outlet cylinder is fixed with an annular support plate, the first filter module is installed on the inner side of the annular support plate, the annular support plate is provided with filter holes, and the filter holes are used to filter the sewage overflowing through the dissolved oxygen ports.

[0015] Optionally, the wastewater purification treatment device further includes an annular sealing cover, which is threadedly connected to the lead screw. The annular sealing cover can be placed on the annular support plate and block the filter holes by rotating the lead screw. When the annular sealing cover is placed on the annular support plate, the water inlet cylinder is away from the first filter module.

[0016] Optionally, the first filter module includes an annular rotating frame and a filter screen. The annular rotating frame is rotatably connected to the inner side of the annular support plate, and the filter screen is fixed to the inner side of the annular rotating frame. The annular rotating frame is fixed with a plurality of spaced limiting blocks. A limiting groove is provided at one end of the water inlet cylinder near the first filter module. The limiting groove can be connected to the limiting block by the movement of the water inlet cylinder toward the first filter module.

[0017] Optionally, the wastewater purification treatment device further includes a stirring frame and a rotary drive unit. The stirring frame is rotatably connected to the first filter module and extends into the interior of the inlet cylinder. The rotary drive unit is connected to the stirring frame and the first filter module and is used to drive the stirring frame and the first filter module to rotate in opposite directions.

[0018] Optionally, the stirring frame includes a stirring rod and several stirring blades. The stirring rod is rotatably connected to the first filter module and extends into the interior of the water inlet cylinder. Each stirring blade is fixed to the stirring rod, and each stirring blade is provided with several water passage holes.

[0019] Optionally, the rotary drive unit includes a connecting shaft, a connecting sleeve, and a rotary drive mechanism. One end of the connecting shaft is fixed to the stirring frame, and the other end of the connecting shaft is rotatably connected to the water outlet cylinder. The connecting sleeve is fitted onto the connecting shaft and fixedly connected to the first filter module. The rotary drive mechanism is connected to the connecting shaft and the connecting sleeve and is used to drive the connecting shaft and the connecting sleeve to rotate in opposite directions.

[0020] Optionally, the rotary drive mechanism includes a rotary drive motor, a main gear, a first driven gear, and a second driven gear. The first driven gear and the second driven gear are respectively fixed to the connecting shaft and the connecting sleeve. The main gear meshes with the first driven gear and the second driven gear. The rotary drive motor is connected to the main gear and is used to drive the main gear to rotate, so that the main gear drives the first driven gear and the second driven gear to rotate in opposite directions.

[0021] Optionally, the second filtration module includes a filter element and a water guide frame. The filter element is fixed inside the water outlet cylinder. The upper end of the water guide frame is located on the periphery of the first filtration module, and the lower end of the water guide frame extends to the inner side of the filter element, for guiding the wastewater filtered by the first filtration module to the inner side of the filter element.

[0022] Compared with the prior art, the beneficial effects of the sewage purification treatment device provided by the present invention include: by setting up a support frame, an outlet cylinder, a first filter module, an inlet cylinder, and a second filter module, the outlet cylinder is fixed to the support frame, and the inlet cylinder is located on the inlet side of the outlet cylinder. After the water supply unit supplies sewage into the inlet cylinder, it enters the interior of the outlet cylinder from the outlet of the inlet cylinder. The first filter module is fixed to the inlet of the outlet cylinder and can filter the sewage entering the outlet cylinder. The second filter module is fixed to the interior of the outlet cylinder. After the sewage filtered by the first filter module enters the outlet cylinder, it can be filtered again by the second filter module. The sewage can be efficiently purified by the dual filtration of the first filter module and the second filter module. Since the sewage purification treatment device is also equipped with a lifting drive module, when the first filter module is being cleaned, the lifting drive module drives the inlet cylinder to rise and move away from the first filter module, exposing the first filter module, which facilitates the cleaning of the first filter module. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the wastewater purification treatment device provided in an embodiment of the present invention.

[0024] Figure 2 This is a front view of a wastewater purification treatment device provided in an embodiment of the present invention.

[0025] Figure 3 For along Figure 2 Sectional view along line AA in the middle.

[0026] The following are the labeling elements in the figure:

[0027] 10—Support frame; 11—Water supply frame; 20—Water outlet cylinder

[0028] 21—Annular support plate; 30—First filter module; 31—Annular rotating frame

[0029] 32—Filter screen; 40—Inlet cylinder; 41—Outlet.

[0030] 42—Connecting frame; 43—Oxygen dissolving port; 44—Limiting groove

[0031] 50—Second Filtration Module; 51—Filter Element; 52—Water Guide Rack

[0032] 60—Lifting drive module; 61—Lifting drive motor; 62—Lead screw

[0033] 70—Annular sealing cap; 80—Stirring rack; 81—Stirring rod

[0034] 82—Stirring blade; 90—Rotary drive unit; 91—Connecting shaft

[0035] 92—Connecting sleeve; 93—Rotary drive mechanism; 111—Medication funnel

[0036] 112—Inlet pipe; 211—Filter hole; 311—Limiting block

[0037] 821—Water passage hole; 931—Rotary drive motor; 932—Main gear

[0038] 933—First driven gear; 934—Second driven gear. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] Embodiments of the present invention provide a wastewater purification and treatment device, such as... Figure 1 As shown, the system includes a support frame 10, an outlet cylinder 20, a first filter module 30, an inlet cylinder 40, a second filter module 50, and a lifting drive module 60. The outlet cylinder 20 is fixed to the support frame 10. The first filter module 30 is installed at the inlet of the outlet cylinder 20 and is used to filter the sewage entering the outlet cylinder 20. The inlet cylinder 40 is located on one side of the inlet of the outlet cylinder 20, and an outlet 41 is provided at the end of the inlet cylinder 40 near the outlet cylinder 20. The second filter module 50 is fixed inside the outlet cylinder 20 and is used to filter the sewage filtered by the first filter module 30. The lifting drive module 60 is connected to the inlet cylinder 40 and is used to drive the inlet cylinder 40 to rise and fall, so that the end of the inlet cylinder 40 near the outlet cylinder 20 is connected to or away from the first filter module 30.

[0041] Specifically, the system comprises a support frame 10, an outlet cylinder 20, a first filter module 30, an inlet cylinder 40, and a second filter module 50. The outlet cylinder 20 is fixed to the support frame 10. The inlet cylinder 40 is located on the inlet side of the outlet cylinder 20. After the water supply unit supplies wastewater into the inlet cylinder 40, the wastewater enters the interior of the outlet cylinder 20 through the outlet 41 of the inlet cylinder 40. The first filter module 30 is fixed to the inlet of the outlet cylinder 20 and can filter the wastewater entering the outlet cylinder 20. The second filter module 50 is fixed to the outlet cylinder 20. Inside, the wastewater filtered by the first filter module 30 enters the outlet cylinder 20 and can then be filtered again by the second filter module 50. The wastewater can be efficiently purified through the dual filtration of the first filter module 30 and the second filter module 50. Since the wastewater purification treatment device is also equipped with a lifting drive module 60, when the first filter module 30 is being cleaned, the lifting drive module 60 drives the inlet cylinder 40 to rise and move away from the first filter module 30, exposing the first filter module 30, which facilitates the cleaning of the first filter module 30.

[0042] In this embodiment, since the amount of sludge from the wastewater filtered in one pass is relatively large, the first filter module 30 needs to be cleaned regularly. In this embodiment, when the first filter module 30 is filtering, the lifting drive module 60 drives the inlet cylinder 40 to descend and connect with the first filter module 30, so that all the wastewater entering the inlet cylinder 40 can be filtered by the first filter module 30 before entering the outlet cylinder 20. In this embodiment, when the first filter module 30 is being cleaned, the lifting drive module 60 drives the inlet cylinder 40 to rise and move away from the first filter module 30, thereby facilitating the cleaning of the first filter module 30 and effectively preventing the first filter module 30 from becoming clogged.

[0043] In this embodiment, as Figure 1 As shown, a water supply frame 11 is fixed on the support frame 10. The water supply frame 11 includes a drug supply funnel 111 and an inlet pipe 112. The drug supply funnel 111 is fixed to the support frame 10 and extends into the interior of the inlet cylinder 40. The inlet pipe 112 is fixed to the drug supply funnel 111 and communicates with the interior of the drug supply funnel 111. The water supply frame 11 can be connected to the inlet pipe 112 through a water supply device, allowing wastewater to be supplied into the inlet pipe 112 through the water supply device, and then guided into the interior of the inlet cylinder 40 by the drug supply funnel 111. The drug supply device can introduce the water purification process drugs into the drug supply funnel 111 through the upper opening of the drug supply funnel 111, and then guide the drugs into the interior of the inlet cylinder 40 through the drug supply funnel 111, realizing the drug supply to the inlet cylinder 40. The drugs and wastewater enter the inlet cylinder 40 for mixing.

[0044] In this embodiment, as Figure 1As shown, the surface of the inlet cylinder 40 is provided with several dissolved oxygen ports 43, and the inlet of the outlet cylinder 20 is provided with an annular support plate 21. The first filter module 30 is installed on the inner side of the annular support plate 21, which is provided with filter holes 211. The filter holes 211 are used to filter the sewage overflowing through the dissolved oxygen ports 43. Specifically, the dissolved oxygen ports 43 facilitate the entry of oxygen into the interior of the inlet cylinder 40 to facilitate the reaction between the drug and the sewage. As the amount of sewage inside the inlet cylinder 40 increases, some sewage will overflow from the dissolved oxygen ports 43. The overflowing sewage can flow along the side wall of the inlet cylinder 40 to the annular support plate 21, and after being filtered by the filter holes 211 of the annular support plate 21, it enters the interior of the outlet cylinder 20. Through the above structure, while facilitating the dissolved oxygen of sewage, the overflowing sewage can also be filtered, thereby improving the sewage purification efficiency.

[0045] In this embodiment, the dissolved oxygen port 43 is located at the upper end of the water inlet cylinder 40 to reduce the sludge contained in the overflowing sewage.

[0046] Understandably, the first filter module 30 can be a filter screen 32 installed at the inlet of the water outlet cylinder 20, and the second filter module 50 can be a filter screen 32 fixed inside the water outlet cylinder 20.

[0047] Understandably, the lifting drive module 60 can be any drive device, such as a hydraulic cylinder or a pneumatic cylinder, that can drive the water outlet cylinder 20 to move linearly.

[0048] In one embodiment, such as Figure 1 and 3 As shown, the lifting drive module 60 includes a lifting drive motor 61 and a lead screw 62. The lead screw 62 is rotatably connected to the support frame 10 and extends in the height direction of the support frame 10. The lifting drive motor 61 is fixed to the support frame 10 and connected to the lead screw 62, and is used to drive the lead screw 62 to rotate. The water inlet cylinder 40 is fixed with a connecting frame 42, which is threadedly connected to the lead screw 62. Specifically, the lifting drive motor 61 drives the lead screw 62 to rotate, which in turn drives the connecting frame 42 threadedly connected to the lead screw 62 to rise and fall, thereby realizing the lifting drive of the water inlet cylinder 40.

[0049] In one embodiment, such as Figure 1 and 3As shown, the wastewater purification device also includes an annular sealing cover 70, which is threadedly connected to a lead screw 62. The annular sealing cover 70 can be rotated by the lead screw 62 to cover the annular support plate 21 and block the filter holes 211. When the annular sealing cover 70 covers the annular support plate 21, the inlet cylinder 40 is away from the first filter module 30. Specifically, when the lead screw 62 drives the inlet cylinder 40 away from the first filter module 30 to perform sludge removal work on the first filter module 30 and the inlet cylinder 40, the lead screw 62 can also drive the annular sealing cover 70 to cover the annular support plate 21 and block the filter holes 211, thereby preventing sludge from the first filter module 30 and the inlet cylinder 40 from entering the annular sealing cover 70 and causing blockage of the filter holes 211 or entering the interior of the outlet cylinder 20.

[0050] In this embodiment, the lifting drive module 60, through the setting of the lifting drive motor 61 and the lead screw 62, can simultaneously drive the annular sealing cover 70 and the water inlet cylinder 40 through a single drive mechanism, effectively simplifying the structure of the lifting drive module 60.

[0051] In one embodiment, such as Figure 1 and 3 As shown, the wastewater purification treatment device also includes a stirring frame 80 and a rotary drive unit 90. The stirring frame 80 is rotatably connected to the first filter module 30 and extends into the interior of the water inlet cylinder 40. The rotary drive unit 90 is connected to the stirring frame 80 and the first filter module 30 and is used to drive the stirring frame 80 and the first filter module 30 to rotate in opposite directions.

[0052] Specifically, during the wastewater purification process, the rotary drive unit 90 can drive the stirring frame 80 to rotate, stirring the wastewater in the inlet cylinder 40 to improve the wastewater purification efficiency. At the same time, it drives the first filter module 30 to rotate in the opposite direction to the stirring frame 80, so that the rotation direction of the first filter module 30 is opposite to the rotation direction of the sludge in the wastewater, thereby preventing the sludge from clogging the first filter module 30.

[0053] Understandably, the rotary drive unit 90 can be a rotary drive device that is connected to the first filter module 30 and the stirring rack 80 respectively.

[0054] In one embodiment, such as Figure 1 and 3 As shown, the first filter module 30 includes an annular rotating frame 31 and a filter screen 32. The annular rotating frame 31 is rotatably connected to the inner side of the annular support plate 21, and the filter screen 32 is fixed to the inner side of the annular rotating frame 31. The annular rotating frame 31 is fixed with a number of spaced limiting blocks 311. A limiting groove 44 is provided at one end of the water inlet cylinder 40 near the first filter module 30. The limiting groove 44 can be connected to the limiting block 311 by the movement of the water inlet cylinder 40 toward the first filter module 30.

[0055] Specifically, the annular rotating frame 31 enables the first filter module 30 to be rotatably connected to the annular support plate 21. The filter screen 32 filters the sewage entering the outlet cylinder 20 from the inlet cylinder 40. Through the setting of the limiting block 311 of the annular rotating frame 31 and the limiting groove 44 of the inlet cylinder 40, when the inlet cylinder 40 is connected to the limiting block 311 of the annular rotating frame 31 through the limiting groove 44, the rotation of the first filter module 30 can drive the inlet cylinder 40 to rotate. Moreover, the rotation direction of the inlet cylinder 40 is opposite to the rotation direction of the stirring frame 80. Under the rotation of the inlet cylinder 40 and the stirring frame 80, efficient purification of sewage is achieved.

[0056] In one embodiment, such as Figure 3 As shown, the second filtration module 50 includes a filter element 51 and a water guide frame 52. The filter element 51 is fixed inside the outlet cylinder 20. The upper end of the water guide frame 52 is located on the periphery of the first filtration module 30, and the lower end of the water guide frame 52 extends to the inner side of the filter element 51, for guiding the wastewater filtered by the first filtration module 30 to the inner side of the filter element 51. Specifically, the wastewater filtered by the first filtration module 30 enters the interior of the outlet cylinder 20, is guided by the water guide frame 52 into the interior of the filter element 51, is further purified by the filter element 51, and finally discharged from the outlet cylinder 20.

[0057] In this embodiment, further, as Figure 1 and 3 As shown, the stirring frame 80 includes a stirring rod 81 and several stirring blades 82. The stirring rod 81 is rotatably connected to the first filter module 30 and extends into the interior of the water inlet cylinder 40. Each stirring blade 82 is fixed to the stirring rod 81, and each stirring blade 82 is provided with several water passage holes 821. Specifically, the stirring blades 82 can stir the sewage inside the water inlet cylinder 40 by rotating. The water passage holes 821 of the stirring blades 82 can enhance the turbulence of the sewage inside the water inlet cylinder 40 while reducing the resistance of the stirring blades 82 rotation, thereby improving the sewage purification efficiency.

[0058] In one embodiment, such as Figure 3 As shown, the rotary drive unit 90 includes a connecting shaft 91, a connecting sleeve 92, and a rotary drive mechanism 93. One end of the connecting shaft 91 is fixed to the stirring frame 80, and the other end of the connecting shaft 91 is rotatably connected to the water outlet cylinder 20. The connecting sleeve 92 is sleeved on the connecting shaft 91 and fixedly connected to the first filter module 30. The rotary drive mechanism 93 is connected to the connecting shaft 91 and the connecting sleeve 92 and is used to drive the connecting shaft 91 and the connecting sleeve 92 to rotate in opposite directions.

[0059] Specifically, the connecting shaft 91 can connect the rotary drive mechanism 93 to the stirring frame 80, and the connecting sleeve 92 can connect the rotary drive mechanism 93 to the first filter module 30. The stirring frame 80 and the first filter module 30 can be driven in different directions by the rotary drive mechanism 93 to drive the connecting shaft 91 and the connecting sleeve 92, thereby driving the stirring frame 80 and the first filter module 30 in different rotation directions.

[0060] In this embodiment, further, as Figure 2 and 3 As shown, the rotary drive mechanism 93 includes a rotary drive motor 931, a main gear 932, a first driven gear 933, and a second driven gear 934. The first driven gear 933 and the second driven gear 934 are respectively fixed to the connecting shaft 91 and the connecting sleeve 92. The main gear 932 meshes with the first driven gear 933 and the second driven gear 934. The rotary drive motor 931 is connected to the main gear 932 and is used to drive the main gear 932 to rotate, so that the main gear 932 drives the first driven gear 933 and the second driven gear 934 to rotate in opposite directions.

[0061] Specifically, the rotary drive motor 931 drives the main gear 932, which in turn drives the first driven gear 933 and the second driven gear 934 to rotate in opposite directions. This, in turn, drives the connecting shaft 91 and the connecting sleeve 92 to rotate in opposite directions, thereby enabling the stirring rack 80 and the first filter module 30 to rotate in different directions.

[0062] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A wastewater purification and treatment device, characterized in that, include: Support frame; The water outlet cylinder is fixed to the support frame; The first filtration module is installed at the inlet of the water outlet cylinder and is used to filter the sewage entering the water outlet cylinder; A water inlet cylinder is located on the side of the water inlet of the water outlet cylinder, and a water outlet is provided at the end of the water inlet cylinder near the water outlet cylinder. The water outlet is used to connect to the water inlet. The second filtration module is fixed inside the water outlet cylinder and is used to filter the wastewater filtered by the first filtration module. A lifting drive module is connected to the water inlet cylinder and is used to drive the water inlet cylinder to move so that one end of the water inlet cylinder is connected to or away from the first filter module; A water supply frame is fixed on the support frame. The water supply frame includes a medicine supply funnel and a water inlet pipe. The medicine supply funnel is fixed to the support frame and extends into the interior of the water inlet cylinder. The water inlet pipe is fixed to the medicine supply funnel and communicates with the interior of the medicine supply funnel. The surface of the inlet cylinder is provided with several dissolved oxygen ports, and the inlet of the outlet cylinder is fixed with an annular support plate. The first filter module is installed on the inner side of the annular support plate, and the annular support plate is provided with filter holes for filtering sewage overflowing through the dissolved oxygen ports.

2. The wastewater purification and treatment device according to claim 1, characterized in that, The lifting drive module includes a lifting drive motor and a lead screw. The lead screw is rotatably connected to the support frame and extends in the height direction of the support frame. The lifting drive motor is fixed to the support frame and connected to the lead screw to drive the lead screw to rotate. The water inlet cylinder is fixed with a connecting frame, which is threaded to the lead screw.

3. The wastewater purification and treatment device according to claim 2, characterized in that, It also includes an annular sealing cover, which is threaded to the lead screw. The annular sealing cover can be placed on the annular support plate and block the filter hole by rotating the lead screw. When the annular sealing cover is placed on the annular support plate, the water inlet cylinder is away from the first filter module.

4. The wastewater purification and treatment device according to claim 1, characterized in that, The first filtration module includes an annular rotating frame and a filter screen. The annular rotating frame is rotatably connected to the inner side of the annular support plate, and the filter screen is fixed to the inner side of the annular rotating frame. The annular rotating frame is fixed with a plurality of spaced limiting blocks. A limiting groove is provided at one end of the water inlet cylinder near the first filtration module. The limiting groove can be connected to the limiting block by moving the water inlet cylinder toward the first filtration module.

5. The wastewater purification and treatment apparatus according to any one of claims 1 to 4, characterized in that, It also includes a stirring rack and a rotary drive unit. The stirring rack is rotatably connected to the first filter module and extends into the interior of the water inlet cylinder. The rotary drive unit is connected to the stirring rack and the first filter module and is used to drive the stirring rack and the first filter module to rotate in opposite directions.

6. The wastewater purification and treatment device according to claim 5, characterized in that, The stirring frame includes a stirring rod and several stirring blades. The stirring rod is rotatably connected to the first filter module and extends into the interior of the water inlet cylinder. Each stirring blade is fixed to the stirring rod, and each stirring blade is provided with several water passage holes.

7. The wastewater purification and treatment device according to claim 5, characterized in that, The rotary drive unit includes a connecting shaft, a connecting sleeve, and a rotary drive mechanism. One end of the connecting shaft is fixed to the stirring frame, and the other end of the connecting shaft is rotatably connected to the water outlet cylinder. The connecting sleeve is fitted onto the connecting shaft and fixedly connected to the first filter module. The rotary drive mechanism is connected to the connecting shaft and the connecting sleeve and is used to drive the connecting shaft and the connecting sleeve to rotate in opposite directions.

8. The wastewater purification and treatment device according to claim 7, characterized in that, The rotary drive mechanism includes a rotary drive motor, a main gear, a first driven gear, and a second driven gear. The first driven gear and the second driven gear are respectively fixed to the connecting shaft and the connecting sleeve. The main gear meshes with the first driven gear and the second driven gear. The rotary drive motor is connected to the main gear and is used to drive the main gear to rotate, so that the main gear drives the first driven gear and the second driven gear to rotate in opposite directions.

9. The wastewater purification and treatment apparatus according to any one of claims 1 to 4, characterized in that, The second filtration module includes a filter element and a water guide frame. The filter element is fixed inside the water outlet cylinder. The upper end of the water guide frame is located on the periphery of the first filtration module, and the lower end of the water guide frame extends to the inner side of the filter element, for guiding the wastewater filtered by the first filtration module to the inner side of the filter element.

Images