A municipal water supply and drainage domestic sewage treatment device

Abstract

The utility model discloses a kind of municipal water supply and drainage's domestic sewage treatment equipment, including protective housing, its inside is provided with cavity, the upper surface of the protective housing is provided with opening, and the inner wall of protective housing opening is fixedly connected with feed hopper, the inner wall of the cavity of protective housing is fixedly connected with sieve filter plate.This municipal water supply and drainage's domestic sewage treatment equipment is provided with electric push rod and separation cylinder, so that the device works, through the sewage of being preliminarily filtered to the lower end cavity of protective housing, then add flocculating agent to purify sewage, so that separation cylinder is collected to the flocculation of being separated, then through electric push rod drives separation cylinder to slide up, so that secondary filter screen on the surface of separation cylinder is filtered to flocculation, to facilitate the effluent of purified sewage, through the liquid discharge pipeline of lower end of protective housing to repel, to improve the rapid filtration of sewage, increase the practicality of the device to facilitate to speed up work process.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a municipal water supply and drainage system for treating domestic wastewater. 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, and is increasingly becoming part of everyday life. Classified by source, wastewater treatment is generally divided into industrial wastewater treatment and domestic wastewater treatment. Industrial wastewater includes industrial wastewater, agricultural wastewater, and medical wastewater, while domestic wastewater is wastewater generated in daily life. It refers to a complex mixture of various forms of inorganic and organic matter, including floating and suspended solid particles of different sizes, colloidal and gel-like diffuses, and pure solutions. Based on the nature of the water pollution, water pollution can be divided into two categories: natural pollution and anthropogenic pollution. Currently, anthropogenic pollution poses a greater threat to water bodies. Water pollution can be mainly divided into chemical pollution based on the different pollutants. Pollution is categorized into three main types: physical pollution, organic pollution, and biological pollution. The main pollutants include untreated industrial wastewater, untreated domestic sewage, agricultural wastewater from the heavy use of fertilizers, pesticides, and herbicides, industrial waste and domestic garbage piled up along riverbanks, soil erosion, and mine wastewater. With technological advancements, direct utilization of wastewater has become possible. Wastewater source heat pump systems are used to utilize raw urban wastewater, which refers to untreated domestic and industrial wastewater directly discharged into cities. Currently, the method involves directly feeding the raw wastewater into a wastewater source heat pump system for heat exchange, providing indoor cooling and heating for urban buildings with minimal electricity consumption. Several technical challenges need to be overcome in wastewater reuse, such as clogging, corrosion, and heat exchange efficiency. Wastewater treatment plants treat industrial and domestic wastewater to meet prescribed discharge standards, serving as crucial environmental protection facilities. For these wastewater treatment plants to truly function effectively, strict discharge regulations, organizational structures, and management systems are essential.

[0003] The main existing wastewater treatment equipment includes centrifuges, sludge dewatering machines, aerators, microfilters, dissolved air flotation (DAF) machines, and ozone generators. These are primarily used to separate solid particles from the liquid in a suspension. Ozone, a strong oxidant, can break down large organic molecules into smaller molecules, convert poorly soluble substances into soluble ones, transform recalcitrant substances into biodegradable ones, and decompose harmful substances into harmless ones, thus achieving wastewater purification. With the increasing scarcity of water resources, people are paying more attention to water conservation. Domestic sewage is the second largest source of wastewater after industrial wastewater. Since the water is discharged from residential areas and is collected by rainwater, the sewage contains various large particulate impurities. In order to reduce the impact of large particulate impurities on sewage treatment, it is necessary to filter the large particulate impurities in advance. When using existing sewage treatment equipment, the raw materials are usually separated into solid and liquid first, and then flocculants are added to the sewage. As the sewage is stirred and mixed, flocculents are precipitated in the sewage to remove impurities. However, this requires filtering the mixed solution again after it is discharged, which increases the working time, is not conducive to improving work efficiency, and reduces practicality. Summary of the Invention

[0004] The purpose of this invention is to provide a municipal water supply and drainage sewage treatment device to solve the problems mentioned in the background art, which generally involves first separating the raw materials into solid and liquid, and then adding flocculants to the sewage. As the sewage is stirred and mixed, flocculents are precipitated in the sewage for impurity removal. However, this requires filtering the mixed solution again after it is exported, which increases the working time, is not conducive to improving work efficiency, and reduces practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a municipal water supply and drainage domestic sewage treatment device, comprising a protective shell with an internal cavity, an opening on the upper surface of the protective shell, a feed hopper fixedly connected to the inner wall of the opening, a filter plate fixedly connected to the inner wall of the cavity, a guide pipe fixedly installed between the side surface of the protective shell and the side surface of the filter plate, a solid discharge pipe fixedly connected to the lower surface of one end of the guide pipe, a separation cylinder slidably connected to the inner wall of the cavity, a drain pipe penetrating the lower side surface of the protective shell, a first motor fixedly connected to the rear surface of the protective shell, a first gear rotatably connected to the inside of the protective shell, a second gear rotatably connected to the top surface of the cavity, an auxiliary scraper fixedly connected to the lower end of the second gear, a first discharge shaft rotatably connected to the inner wall of the guide pipe cavity, and an auxiliary stirring mechanism provided in the cavity of the protective shell, which drives a mixing plate to rotate via a mounting frame, while the mixing plate simultaneously rotates to stir and mix the sewage.

[0006] Preferably, one end of the filter plate is provided with an opening, the guide pipe is C-shaped and connected to the solid discharge pipe, and a secondary filter screen is embedded in the surface of the separating cylinder, the secondary filter screen being annular in design.

[0007] Using the above technical solution, the opening at one end of the filter plate facilitates the introduction of impurities into the guide pipe, and the secondary filter screen on the surface of the separation cylinder filters the subsequently precipitated flocculent matter.

[0008] Preferably, the output end of the first motor penetrates the surface of the protective housing, and the output end of the first motor is fixedly connected to the shaft of the first gear, wherein the first gear and the second gear form a meshing connection.

[0009] Using the above technical solution, the first motor drives the first gear to rotate, which in turn drives the second gear and the auxiliary scraper to rotate.

[0010] Preferably, the output end of the first motor is provided with a sprocket, one end of the shaft of the first discharge shaft passes through the guide pipe, and one end of the shaft of the first discharge shaft is provided with a sprocket. A transmission chain is provided between the sprocket of the first discharge shaft and the sprocket at the output end of the first motor, and the outer surface of the first discharge shaft is provided with helical blades.

[0011] By adopting the above technical solution, the first motor and transmission chain can easily drive the first discharge shaft to rotate, so that the first discharge shaft can carry solid impurities into the solid discharge pipe through the blades for cleaning.

[0012] Preferably, the auxiliary stirring mechanism includes an electric push rod fixed to the lower surface of the filter plate. The output end of the electric push rod is provided with a baffle, and the baffle at the output end of the electric push rod is rotatably connected to a mounting frame. Two mixing plates are rotatably connected to the lower surface of the mounting frame. A second motor is fixedly connected to the upper surface of the baffle at the output end of the electric push rod. A third gear is rotatably connected inside the baffle at the output end of the electric push rod. A fourth gear is fixed to the upper end of the mounting frame. A fifth gear is provided inside the mounting frame. Two sixth gears are rotatably connected inside the mounting frame.

[0013] Using the above technical solution, the electric push rod drives the mounting frame to move, while the second motor drives the third gear to rotate, which in turn drives the fourth gear and the mounting frame to rotate.

[0014] Preferably, the output end of the second motor is fixedly connected to the shaft of the third gear, the third gear and the fourth gear are meshed, the upper end of the shaft of the fifth gear is fixedly connected to the inner wall of the baffle at the output end of the electric push rod, the fifth gear and the sixth gear are meshed, the shaft of the sixth gear is fixedly connected to the shaft of the mixing plate, a stirring rod is provided on the lower outer surface of the mixing plate, and a foaming plate is embedded in the lower end of the mixing plate, and the baffle at the output end of the electric push rod is fixedly connected to the separating cylinder.

[0015] Using the above technical solution, the fifth gear drives the sixth gear to rotate, which in turn drives the mixing plate to rotate. The mixing plate's stirring rod and foaming plate facilitate the stirring of the wastewater.

[0016] Preferably, a third motor is fixedly connected to the lower surface of the separating cylinder, a transmission gear is rotatably connected inside the separating cylinder, and two linkage gears are rotatably connected inside the separating cylinder. A second discharge shaft is fixedly connected to one end of the linkage gear shaft, and two waste pipes are fixedly connected to the lower surface of the separating cylinder.

[0017] By adopting the above technical solution, the rotation of the linkage gear drives the second discharge shaft to rotate, which facilitates the movement of the flocculent material by the blades of the second discharge shaft.

[0018] Preferably, the output end of the third motor is fixedly connected to the shaft of the transmission gear, the transmission gear and the linkage gear are meshed, the outer surface of the second discharge shaft is provided with spiral blades, and the second discharge shaft is connected to the cavity of the separation cylinder, the waste pipe is connected to the second discharge shaft, the waste pipe penetrates the lower surface of the protective shell, and the waste pipe and the protective shell are slidably connected.

[0019] Using the above technical solution, a third motor drives the transmission gear to rotate, which in turn drives two linked gears to rotate.

[0020] Compared with the prior art, the beneficial effects of the present invention are: the municipal water supply and drainage domestic sewage treatment equipment:

[0021] 1. Equipped with an electric push rod and a separation cylinder, the device operates by allowing pre-filtered wastewater to flow into the lower cavity of the protective shell. Flocculant is then added to purify the wastewater, and the separation cylinder collects the precipitated flocculent matter. The electric push rod then drives the separation cylinder to slide upwards, allowing the flocculent matter to be filtered through a secondary filter screen on the surface of the separation cylinder. This facilitates the outflow of purified wastewater, which is then expelled through the drain pipe at the lower end of the protective shell. This improves the rapid filtration of wastewater, increases the practicality of the device, and speeds up the working process.

[0022] 2. An auxiliary scraper and a first discharge shaft are provided. When the device is working, the first motor drives the first gear to rotate, which in turn drives the second gear and the auxiliary scraper to rotate. This facilitates the auxiliary scraper to move the solid waste accumulated on the surface of the screen plate, thereby improving the discharge efficiency of solid waste and preventing the screen plate from clogging. The first motor drives the first discharge shaft to rotate through the transmission chain, which causes the blades on the surface of the first discharge shaft to move impurities to be discharged, thereby accelerating the efficiency of impurity removal.

[0023] 3. The device is equipped with a mounting frame and a mixing plate. When the device is working, the second motor and the third gear drive the fourth gear and the mounting frame to rotate, which in turn drives the mixing plate to rotate. At the same time, the sixth gear rotates with the mounting frame and is driven by the fixed fifth gear, which in turn drives the mixing plate to rotate, thereby improving the mixing efficiency. The stirring rods and foaming plates on the surface of the mixing plate further enhance the agitation of the wastewater, facilitating the thorough mixing and reaction of the wastewater and the reagent.

[0024] 4. The device is equipped with a linkage gear and a second discharge shaft. When the device is working, the flocculent material is filtered by the rising of the separation cylinder. The flocculent material enters the second discharge shaft through the opening of the separation cylinder. Then, the third motor drives the linkage gear and the second discharge shaft to rotate through the transmission gear. This allows the second discharge shaft to discharge the flocculent material from the waste pipe through the blades, increasing the waste discharge efficiency of the device. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the connection between the protective shell and the feed hopper of the present invention;

[0026] Figure 2 This is a three-dimensional structural diagram of the connection between the protective shell and the guide pipe of the present invention;

[0027] Figure 3 This is a three-dimensional structural diagram of the connection between the guide pipe and the solid discharge pipe of the present invention;

[0028] Figure 4 This is a three-dimensional structural diagram of the connection between the first gear and the second gear of the present invention;

[0029] Figure 5 This is a three-dimensional structural diagram of the connection between the protective shell and the filter plate of the present invention;

[0030] Figure 6 This is a three-dimensional structural diagram of the connection between the second gear and the auxiliary scraper of the present invention;

[0031] Figure 7 This is a three-dimensional structural diagram of the connection between the second motor and the third gear of the present invention;

[0032] Figure 8This is a three-dimensional structural diagram of the connection between the first motor and the first gear of the present invention;

[0033] Figure 9 This is a schematic diagram of the three-dimensional structure connecting the separating cylinder and the secondary filter screen of the present invention;

[0034] Figure 10 This is a three-dimensional structural diagram of the connection between the linkage gear and the second discharge shaft of the present invention.

[0035] In the diagram: 1. Protective outer shell; 2. Feed hopper; 3. Filter plate; 4. Guide pipe; 5. Solid discharge pipe; 6. Separation cylinder; 7. Drainage pipe; 8. First motor; 9. First gear; 10. Second gear; 11. Auxiliary scraper; 12. First discharge shaft; 13. Electric push rod; 14. Mounting frame; 15. Mixing plate; 16. Second motor; 17. Third gear; 18. Fourth gear; 19. Fifth gear; 20. Sixth gear; 21. Secondary filter screen; 22. Third motor; 23. Transmission gear; 24. Linkage gear; 25. Second discharge shaft; 26. Waste pipe. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1-10This invention provides a technical solution: a municipal water supply and drainage domestic sewage treatment device, comprising a protective shell 1, a feed hopper 2, a filter plate 3, a guide pipe 4, a solid discharge pipe 5, a separation cylinder 6, a liquid discharge pipe 7, a first motor 8, a first gear 9, a second gear 10, an auxiliary scraper 11, a first discharge shaft 12, an electric push rod 13, a mounting frame 14, a mixing plate 15, a second motor 16, a third gear 17, a fourth gear 18, a fifth gear 19, a sixth gear 20, a secondary filter screen 21, a third motor 22, a transmission gear 23, a linkage gear 24, a second discharge shaft 25, and a waste pipe 26. The protective shell 1... The device has an internal cavity, an opening at one end of the filter plate 3, and a C-shaped guide pipe 4 connected to the solid discharge pipe 5. A secondary filter screen 21 with an annular design is embedded in the surface of the separating cylinder 6. When using this device, the raw material is first introduced into the protective shell 1 from the feed hopper 2, and then impurities are filtered through the filter plate 3, allowing the wastewater to fall down for the next step. Then, the first motor 8 drives the second gear 10 and the auxiliary scraper 11 to rotate through the first gear 9, so that the auxiliary scraper 11 moves the impurities on the surface of the filter plate 3 to prevent blockage and allow the impurities to enter the guide pipe 4.

[0038] An opening is provided on the upper surface of the protective housing 1, and a feed hopper 2 is fixedly connected to the inner wall of the opening of the protective housing 1. The output end of the first motor 8 penetrates the surface of the protective housing 1, and the output end of the first motor 8 is fixedly connected to the rotating shaft of the first gear 9. The first gear 9 and the second gear 10 form a meshing connection. A sprocket is provided at the output end of the first motor 8. One end of the rotating shaft of the first discharge shaft 12 penetrates the guide pipe 4, and a sprocket is provided at one end of the rotating shaft of the first discharge shaft 12. The sprocket of the first discharge shaft 12 and the sprocket at the output end of the first motor 8 are connected. A transmission chain is provided between the wheels. The outer surface of the first discharge shaft 12 is provided with spiral blades. When the first motor 8 is working, the first motor 8 drives the first discharge shaft 12 to rotate through the transmission chain, so that the first discharge shaft 12 carries impurities into the solid discharge pipe 5 for discharge through the blades on its surface, thereby improving the impurity removal efficiency. After the sewage falls into the separation cylinder 6, flocculant is added to the sewage. At the same time, the second motor 16 drives the fourth gear 18 and the mounting frame 14 to rotate through the third gear 17, so that the mounting frame 14 drives the mixing plate 15 to rotate.

[0039] A filter plate 3 is fixedly connected to the inner wall of the cavity of the protective shell 1. The auxiliary stirring mechanism includes an electric push rod 13, which is fixed to the lower surface of the filter plate 3. A baffle is provided at the output end of the electric push rod 13, and a mounting frame 14 is rotatably connected to the baffle at the output end of the electric push rod 13. Two mixing plates 15 are rotatably connected to the lower surface of the mounting frame 14. A second motor 16 is fixedly connected to the upper surface of the baffle at the output end of the electric push rod 13. A third gear 17 is rotatably connected inside the baffle at the output end of the electric push rod 13. A fourth gear 18 is fixed at the upper end of the mounting frame 14. A fifth gear 19 is provided inside the mounting frame 14. Two sixth gears 20 are rotatably connected inside the mounting frame 14. The mounting frame 14 drives the two sixth gears 20 inside to move, so that the sixth gears 20 are driven by the fixed fifth gears 19, so that the sixth gears 20 drive the mixing plates 15 to rotate, thereby improving the stirring efficiency. At the same time, the stirring rod and bubble plate on the surface of the mixing plates 15 further enhance the stirring effect and facilitate faster mixing.

[0040] A guide pipe 4 is fixedly installed between the side surface of the protective shell 1 and the side surface of the filter plate 3. A solid discharge pipe 5 is fixedly connected to the lower surface of one end of the guide pipe 4. A separation cylinder 6 is slidably connected to the inner wall of the cavity of the protective shell 1. The output end of the second motor 16 is fixedly connected to the shaft of the third gear 17. The third gear 17 and the fourth gear 18 form a meshing connection. The upper end of the shaft of the fifth gear 19 is fixedly connected to the inner wall of the baffle at the output end of the electric push rod 13. The fifth gear 19 and the sixth gear 20 form a meshing connection. The rotating shaft is fixedly connected to the rotating shaft of the mixing plate 15. A stirring rod is provided on the lower outer surface of the mixing plate 15, and a foaming plate is embedded in the lower end of the mixing plate 15. The baffle at the output end of the electric push rod 13 is fixedly connected to the separation cylinder 6. After the flocculent material is precipitated, the electric push rod 13 drives the separation cylinder 6 to slide upward, so that the purified wastewater can flow out from the secondary filter screen 21 and be discharged through the drain pipe 7. The flocculent material is collected in the groove of the separation cylinder 6, so that the flocculent material enters the position of the second discharge shaft 25 from the opening of the separation cylinder 6.

[0041] A drain pipe 7 is installed through the lower side surface of the protective shell 1. A first motor 8 is fixedly connected to the rear surface of the protective shell 1. A first gear 9 is rotatably connected inside the protective shell 1, and a second gear 10 is rotatably connected to the top surface of the cavity of the protective shell 1. A third motor 22 is fixedly connected to the lower surface of the separating cylinder 6. A transmission gear 23 is rotatably connected inside the separating cylinder 6, and two linkage gears 24 are rotatably connected inside the separating cylinder 6. A second discharge shaft 25 is fixedly connected to one end of the shaft of the linkage gear 24. Two waste pipes 26 are fixedly connected to the lower surface of the separating cylinder 6. The transmission gear 23 is driven to rotate by the third motor 22, so that the transmission gear 23 drives the two linkage gears 24 to rotate through the tooth blocks.

[0042] An auxiliary scraper 11 is fixedly connected to the lower end of the second gear 10. A first discharge shaft 12 is rotatably connected to the inner wall of the guide pipe 4 cavity. An auxiliary stirring mechanism is installed in the cavity of the protective shell 1, which drives the mixing plate 15 to rotate through the mounting frame 14, and the mixing plate 15 rotates simultaneously to stir and mix the sewage. The output end of the third motor 22 is fixedly connected to the rotating shaft of the transmission gear 23. The transmission gear 23 and the linkage gear 24 form a meshing connection. Spiral blades are provided on the outer surface of the second discharge shaft 25. The waste pipe 26 is connected to the cavity of the separating cylinder 6 and the waste pipe 25 is connected to the second discharge shaft 25. The waste pipe 26 penetrates the lower surface of the protective shell 1 and forms a sliding connection with the protective shell 1. After the two linkage gears 24 rotate, they drive the two second discharge shafts 25 to rotate respectively, so that the blades on the surface of the second discharge shaft 25 carry the flocculent material into the waste pipe 26 for discharge. This facilitates the device to fully clean solid impurities, reduces the cleaning and discharge time, and improves the overall practicality of the device.

[0043] Working principle: When using this municipal water supply and drainage sewage treatment equipment, sewage is first introduced into the protective shell 1 from the feed hopper 2. Then, solid impurities are filtered through the screen plate 3. The first motor 8 drives the second gear 10 and the auxiliary scraper 11 to rotate through the first gear 9, so that the auxiliary scraper 11 can carry solid impurities into the guide pipe 4. The first motor 8 drives the first discharge shaft 12 to rotate through the transmission chain, so that impurities can enter the solid discharge pipe 5 and be discharged. The second motor 16 drives the fourth gear 18 and the mounting frame 14 to rotate through the third gear 17. The fifth gear 19 drives the sixth gear 20 and the mixing plate 15 to rotate to stir the sewage. After flocculant is added to the sewage, flocculent matter is collected in the separation cylinder 6. The separation cylinder 6 is driven to slide upward by the electric push rod 13, so that the sewage flows down from the secondary filter screen 21 and is discharged through the drain pipe 7. The third motor 22 drives the transmission gear 23 to rotate, so that the transmission gear 23 drives the linkage gear 24 and the second discharge shaft 25 to rotate, so that the flocculent matter can be discharged from the waste pipe 26, which increases the overall practicality.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A municipal water supply and drainage domestic sewage treatment device, comprising a protective shell (1) having a cavity inside, an opening on the upper surface of the protective shell (1), and a feed hopper (2) fixedly connected to the inner wall of the opening of the protective shell (1), and a filter plate (3) fixedly connected to the inner wall of the cavity of the protective shell (1), characterized in that: A guide pipe (4) is fixedly installed between the side surface of the protective shell (1) and the side surface of the filter plate (3). A solid discharge pipe (5) is fixedly connected to the lower surface of one end of the guide pipe (4). A separation cylinder (6) is slidably connected to the inner wall of the cavity of the protective shell (1). A drain pipe (7) is installed through the lower side surface of the protective shell (1). A first motor (8) is fixedly connected to the rear surface of the protective shell (1). A first gear (9) is rotatably connected inside the protective shell (1). A second gear (10) is rotatably connected to the top surface of the cavity of the protective shell (1). An auxiliary scraper (11) is fixedly connected to the lower end of the second gear (10). A first discharge shaft (12) is rotatably connected to the inner wall of the cavity of the guide pipe (4). An auxiliary stirring mechanism is provided in the cavity of the protective shell (1). It drives the mixing plate (15) to rotate through the mounting frame (14), and the mixing plate (15) rotates at the same time to stir and mix the sewage. The filter plate (3) has an opening at one end, the guide pipe (4) is C-shaped, the guide pipe (4) is connected to the solid discharge pipe (5), and a secondary filter screen (21) is embedded in the surface of the separation cylinder (6). The secondary filter screen (21) is annular. The output end of the first motor (8) is provided with a sprocket, one end of the shaft of the first discharge shaft (12) passes through the guide pipe (4), and one end of the shaft of the first discharge shaft (12) is provided with a sprocket, and a transmission chain is provided between the sprocket of the first discharge shaft (12) and the sprocket at the output end of the first motor (8), and the outer surface of the first discharge shaft (12) is provided with spiral blades; The auxiliary stirring mechanism includes an electric push rod (13), which is fixed to the lower surface of the filter plate (3). The output end of the electric push rod (13) is provided with a baffle, and the baffle at the output end of the electric push rod (13) is rotatably connected to a mounting frame (14). Two mixing plates (15) are rotatably connected to the lower surface of the mounting frame (14). A second motor (16) is fixedly connected to the upper surface of the baffle at the output end of the electric push rod (13). A third gear (17) is rotatably connected inside the baffle at the output end of the electric push rod (13). A fourth gear (18) is fixed to the upper end of the mounting frame (14). A fifth gear (19) is provided inside the mounting frame (14). The internal rotating connection has two sixth gears (20); the output end of the second motor (16) is fixedly connected to the shaft of the third gear (17), the third gear (17) and the fourth gear (18) are meshed, the upper end of the shaft of the fifth gear (19) is fixedly connected to the inner wall of the baffle at the output end of the electric push rod (13), the fifth gear (19) and the sixth gear (20) are meshed, the shaft of the sixth gear (20) is fixedly connected to the shaft of the mixing plate (15), the lower outer surface of the mixing plate (15) is provided with a stirring rod, and the lower end of the mixing plate (15) is embedded with a bubbler plate, and the baffle at the output end of the electric push rod (13) is fixedly connected to the separating cylinder (6).

2. A municipal water supply and drainage domestic sewage treatment device according to claim 1, characterized in that: The output end of the first motor (8) penetrates the surface of the protective shell (1), and the output end of the first motor (8) is fixedly connected to the shaft of the first gear (9). The first gear (9) and the second gear (10) form a meshing connection.

3. A municipal water supply and drainage domestic sewage treatment device according to claim 1, characterized in that: A third motor (22) is fixedly connected to the lower surface of the separating cylinder (6). A transmission gear (23) is rotatably connected inside the separating cylinder (6), and two linkage gears (24) are rotatably connected inside the separating cylinder (6). A second discharge shaft (25) is fixedly connected to one end of the shaft of the linkage gear (24). Two waste pipes (26) are fixedly connected to the lower surface of the separating cylinder (6).

4. A municipal water supply and drainage domestic sewage treatment device according to claim 3, characterized in that: The output end of the third motor (22) is fixedly connected to the shaft of the transmission gear (23). The transmission gear (23) and the linkage gear (24) form a meshing connection. The outer surface of the second discharge shaft (25) is provided with spiral blades, and the second discharge shaft (25) is connected to the cavity of the separation cylinder (6). The waste pipe (26) is connected to the second discharge shaft (25), and the waste pipe (26) penetrates the lower surface of the protective shell (1). The waste pipe (26) and the protective shell (1) form a sliding connection.

Images