Sewage treatment device with multi-stage treatment function and system thereof

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device with a multi-stage treatment function and a system thereof, and the sewage treatment device with the multi-stage treatment function comprises a sedimentation tank; the device further comprises a processing assembly. The treatment assembly comprises two inclined slideways, a water inlet pipe, a water outlet pipe, a top frame, a sliding block, a driving mechanism, a bracket, a plurality of sliding rods, a scraping plate, a plurality of springs, a filtering mechanism, a disinfecting mechanism and a purifying mechanism; the water inlet pipe is used for discharging sewage into the settling pond, after impurities are settled, the sewage is discharged from the water outlet pipe, is discharged into the filtering mechanism for filtering, then enters the disinfection mechanism for disinfection, and finally enters the purification mechanism for purification, so that multi-stage treatment of the sewage is completed; the driving mechanism and the scraping plate are utilized to respectively push scum on the surface of sewage in the sedimentation tank to the two inclined slideways on the left side and the right side to be discharged, so that the scum on the surface of the sewage can be effectively cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment device and system with multi-stage treatment functions. Background Art

[0002] Discharging untreated sewage will damage the ecological systems of water bodies such as rivers, lakes and oceans, leading to problems such as water quality deterioration and biodiversity reduction. Sewage treatment can effectively reduce pollutant emissions, help maintain ecological balance and protect the natural environment.

[0003] The prior art (CN113023982A) discloses a sewage treatment device with multi-stage treatment functions. The whole is an outer box body. The space above the connecting plate is used for sedimentation. There is a movable plate below the connecting plate, and there is a filter plate structure between the connecting plate and the movable plate. During use, sewage enters above the connecting plate for sedimentation, and the sedimented sewage is discharged through the sewage discharge pipe. Then, the impurities inside the water body are filtered and adsorbed through the filter plate structure. And after the filter plate structure is used for a period of time, impurities will remain inside. The sealing plate can be opened, and the movable plate and the filter plate structure can be pulled out to clean the inside of the filter plate structure. A through hole is opened at the end of the movable plate close to the sealing plate, and the filtered water body is conveyed downward through the through hole. The water body enters the disinfection box through the conveying pipe and the water inlet hopper, and then the water body is disinfected by the disinfection solution. The device has a good effect on sewage treatment.

[0004] However, in the above method, when the sewage is sedimented above the connecting plate, there is scum on the surface of the sewage, which is not cleaned, and the scum cannot settle down, easily enters the subsequent sewage treatment equipment, affects the subsequent treatment effect, and may also cause blockage. Summary of the Invention

[0005] The purpose of the present invention is to provide a sewage treatment device and system with multi-stage treatment functions, which can effectively clean the scum on the surface of the sewage.

[0006] To achieve the above purpose, in the first aspect, the present invention provides a sewage treatment device with multi-stage treatment functions, including a sedimentation tank;

[0007] It further includes a treatment component;

[0008] The treatment component includes two inclined chutes, a water inlet pipe, a water outlet pipe, a top frame, a slider, a driving mechanism, a bracket, a plurality of sliding rods, a scraper, a plurality of springs, a filtering mechanism, a disinfection mechanism and a purification mechanism;

[0009] The two inclined chutes are respectively fixedly arranged on the left and right sides of the top of the sedimentation tank; the inclined chutes have a first inclined surface and a second inclined surface; the water inlet pipe is communicatively arranged on one side of the sedimentation tank; the water outlet pipe is communicatively arranged on the side of the sedimentation tank away from the water inlet pipe; the top frame is fixedly arranged on the top of the sedimentation tank; the slider is slidably arranged on the top frame; the driving mechanism is arranged on the top frame for driving the slider to slide; the bracket is fixedly arranged at the bottom of the slider; a plurality of slide rods are respectively slidably arranged on the bracket and respectively pass through the bracket; the scraper is fixedly arranged at the bottoms of the plurality of slide rods; a plurality of springs are respectively sleeved on the plurality of slide rods and are respectively located between the scraper and the bracket; the filtering mechanism is communicatively arranged on one side of the water outlet pipe; the disinfection mechanism is communicatively arranged on one side of the filtering mechanism; the purification mechanism is communicatively arranged on one side of the disinfection mechanism.

[0010] Wherein, the processing assembly further includes two collection boxes;

[0011] The two collection boxes are respectively fixedly arranged on the left and right sides of the sedimentation tank.

[0012] Wherein, the driving mechanism includes a lead screw and a motor;

[0013] The lead screw is rotatably connected to the top frame, threadedly connected to the slider and passes through the slider; the motor is fixedly arranged on one side of the top frame, and the output end of the motor is fixedly connected to the lead screw.

[0014] Wherein, the slide rod includes a rod body and a limit block;

[0015] The rod body is fixedly connected to the scraper, slidably connected to the bracket and passes through the bracket; the limit block is fixedly arranged at the top of the rod body.

[0016] Wherein, the filtering mechanism includes a filter tank, a coarse fiber filter plate, an activated carbon particle filter plate, a sintered activated carbon filter plate and a PP cotton filter plate;

[0017] The filter tank is communicatively arranged on one side of the water outlet pipe; the coarse fiber filter plate is slidably arranged in the filter tank; the activated carbon particle filter plate is slidably arranged in the filter tank; the sintered activated carbon filter plate is slidably arranged in the filter tank; the PP cotton filter plate is slidably arranged in the filter tank.

[0018] Wherein, the disinfection mechanism includes a first connecting pipe, a disinfection tank and a stirrer;

[0019] The first connecting pipe is communicatively arranged on one side of the filter tank; the disinfection tank is communicatively arranged on one side of the first connecting pipe; the stirrer is arranged on the disinfection tank.

[0020] Among them, the purification mechanism includes a second connecting pipe, a purification tank, a plurality of branch pipes, a plurality of aeration discs, a main pipe, an air pump, an ozone generator, and a drain pipe;

[0021] The second connecting pipe is communicatively arranged on one side of the disinfection tank; the purification tank is communicatively arranged on one side of the second connecting pipe; the plurality of branch pipes are respectively fixedly connected to the purification tank and respectively pass through the purification tank; a plurality of the aeration discs are communicatively arranged on each of the branch pipes; the main pipe is respectively communicatively connected to the plurality of branch pipes and is located on one side of the plurality of branch pipes; the air pump is communicatively arranged on one side of the main pipe; the ozone generator is communicatively arranged on one side of the air pump; the drain pipe is communicatively arranged on one side of the purification tank.

[0022] In a second aspect, the present invention further provides a sewage treatment system with multi-stage treatment functions, including the sewage treatment device with multi-stage treatment functions described above.

[0023] For the sewage treatment device and system with multi-stage treatment functions of the present invention, the water inlet pipe is used to discharge sewage into the sedimentation tank. After impurities are precipitated, the sewage is discharged from the water outlet pipe. The top frame is used to slidably mount the slider. The driving mechanism is used to drive the slider to slide, thereby driving the scraper to move left and right at the top of the sedimentation tank. The liquid level of the sewage in the sedimentation tank slightly submerges the bottom end of the scraper; the sewage after sedimentation is discharged from the water outlet pipe into the filtering mechanism for filtering, then enters the disinfection mechanism for disinfection, and finally enters the purification mechanism for purification, completing the multi-stage treatment of sewage; when there is more floating scum on the top of the sewage, the driving mechanism is started to drive the slider to move to the right, driving the scraper to move to the right. The scraper pushes the floating scum on the right side liquid surface to the right, and pushes the floating scum onto the first inclined surface of the inclined slide on the right side. The scraper continues to move to the right. The scraper pushes the floating scum to the right along the first inclined surface. At this time, the scraper gradually moves up, and the plurality of slide rods also gradually slide up, and the plurality of springs are compressed until the floating scum is pushed onto the second inclined surface. The floating scum drains away along the second inclined surface. Then the driving mechanism drives the slider to move to the left, driving the scraper to move to the left. The scraper slides along the first inclined surface. Under the action of the plurality of springs, the scraper gradually moves down. After separating from the first inclined surface, it re-inserts into the sewage liquid surface. Then, driven by the driving mechanism, the scraper moves to the left again, and pushes the floating scum on the left side liquid surface to the first inclined surface of the inclined slide on the left side, and finally pushes it onto the second inclined surface to drain away; therefore, the floating scum on the right side liquid surface of the scraper is pushed to the inclined slide on the right side to drain away, and the floating scum on the left side liquid surface of the scraper is pushed to the inclined slide on the left side to drain away. The floating scum on the sewage surfaces on both the left and right sides of the scraper can be cleaned up; by using the scraper and the two inclined slides, the floating scum on the sewage surface can be effectively cleaned up. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0025] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention.

[0026] Figure 2 It is a front view of the first embodiment of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the first embodiment of the present invention without a filtering mechanism, a disinfection mechanism, and a purification mechanism.

[0028] Figure 4 It is a cross-sectional view of the first embodiment of the present invention without a filtering mechanism, a disinfection mechanism, and a purification mechanism.

[0029] Figure 5 It is Figure 4 A partial enlarged view of detail A.

[0030] Figure 6 It is another cross-sectional view of the first embodiment of the present invention without a filtering mechanism, a disinfection mechanism, and a purification mechanism.

[0031] Figure 7 It is a cross-sectional view of the filtering mechanism of the first embodiment of the present invention.

[0032] Figure 8 It is a schematic structural diagram of the disinfection mechanism and the purification mechanism of the first embodiment of the present invention.

[0033] Figure 9 It is a cross-sectional view of the disinfection mechanism and the purification mechanism of the first embodiment of the present invention.

[0034] 1 - sedimentation tank, 2 - inclined slideway, 3 - water inlet pipe, 4 - water outlet pipe, 5 - top frame, 6 - slider, 7 - drive mechanism, 8 - bracket, 9 - slide bar, 10 - scraper, 11 - spring, 12 - filtration mechanism, 13 - disinfection mechanism, 14 - purification mechanism, 15 - collection box, 16 - scraping mechanism, 21 - first inclined plane, 22 - second inclined plane, 71 - lead screw, 72 - motor, 91 - rod body, 92 - limit block, 121 - filtration tank, 122 - coarse fiber filter plate, 123 - activated carbon particle filter plate, 124 - sintered activated carbon filter plate, 125 - PP cotton filter plate, 131 - first connecting pipe, 132 - disinfection tank, 133 - stirrer, 141 - second connecting pipe, 142 - purification tank, 143 - branch pipe, 144 - aeration disc, 145 - main pipe, 146 - air pump, 147 - ozone generator, 148 - drain pipe, 161 - telescopic rod, 162 - cleaning plate, 163 - electric push rod. Detailed implementation mode

[0035] The first embodiment of this application is as follows:

[0036] Please refer to Figures 1 - 9 , in which, Figure 1 is the structural schematic diagram of the first embodiment of the present invention. Figure 2 is the front view of the first embodiment of the present invention. Figure 3 is the structural schematic diagram of the first embodiment of the present invention without the filtration mechanism, disinfection mechanism and purification mechanism. Figure 4 is the cross-sectional view of the first embodiment of the present invention without the filtration mechanism, disinfection mechanism and purification mechanism. Figure 5 is Figure 4 the partial enlarged view of detail A. Figure 6 is another cross-sectional view of the first embodiment of the present invention without the filtration mechanism, disinfection mechanism and purification mechanism. Figure 7 is the cross-sectional view of the filtration mechanism of the first embodiment of the present invention. Figure 8 is the structural schematic diagram of the disinfection mechanism and purification mechanism of the first embodiment of the present invention. Figure 9 is the cross-sectional view of the disinfection mechanism and purification mechanism of the first embodiment of the present invention.

[0037] The present invention provides a sewage treatment device with multi-stage treatment functions: including a sedimentation tank 1; further including a treatment assembly; the treatment assembly includes two inclined chutes 2, a water inlet pipe 3, a water outlet pipe 4, a top frame 5, a slider 6, a driving mechanism 7, a bracket 8, a plurality of sliding rods 9, a scraper 10, a plurality of springs 11, a filtering mechanism 12, a disinfection mechanism 13 and a purification mechanism 14; the inclined chute 2 has a first inclined surface 21 and a second inclined surface 22; the treatment assembly further includes two collection boxes 15; the driving mechanism 7 includes a lead screw 71 and a motor 72; the sliding rod 9 includes a rod body 91 and a limit block 92; the filtering mechanism 12 includes a filtering tank 121, a coarse fiber filter plate 122, an activated carbon particle filter plate 123, a sintered activated carbon filter plate 124 and a PP cotton filter plate 125; the disinfection mechanism 13 includes a first connecting pipe 131, a disinfection tank 132 and a stirrer 133; the purification mechanism 14 includes a second connecting pipe 141, a purification tank 142, a plurality of branch pipes 143, a plurality of aeration discs 144, a main pipe 145, an air pump 146, an ozone generator 147 and a drain pipe 148; the treatment assembly further includes two scraping mechanisms 16; the scraping mechanism 16 includes two telescopic rods 161, a cleaning plate 162 and an electric push rod 163; through the foregoing solution, the scum on the surface of the sewage can be effectively cleaned up.

[0038] Further, the two inclined chutes 2 are respectively fixedly arranged on the left and right sides of the top of the sedimentation tank 1; the inclined chute 2 has a first inclined surface 21 and a second inclined surface 22; the water inlet pipe 3 is communicated and arranged on one side of the sedimentation tank 1; the water outlet pipe 4 is communicated and arranged on the side of the sedimentation tank 1 away from the water inlet pipe 3; the top frame 5 is fixedly arranged on the top of the sedimentation tank 1; the slider 6 is slidably arranged on the top frame 5; the driving mechanism 7 is arranged on the top frame 5 for driving the slider 6 to slide; the bracket 8 is fixedly arranged at the bottom of the slider 6; a plurality of the sliding rods 9 are respectively slidably arranged on the bracket 8 and respectively pass through the bracket 8; the scraper 10 is fixedly arranged at the bottom of the plurality of sliding rods 9; a plurality of the springs 11 are respectively sleeved on the plurality of sliding rods 9 and are respectively located between the scraper 10 and the bracket 8; the filtering mechanism 12 is communicated and arranged on one side of the water outlet pipe 4; the disinfection mechanism 13 is communicated and arranged on one side of the filtering mechanism 12; the purification mechanism 14 is communicated and arranged on one side of the disinfection mechanism 13.

[0039] In this embodiment, the water inlet pipe 3 is used to discharge sewage into the sedimentation tank 1. After impurities are precipitated, the sewage is discharged from the water outlet pipe 4. The top frame 5 is used to slidably mount the slider 6. The driving mechanism 7 is used to drive the slider 6 to slide, so as to drive the scraper 10 to displace left and right at the top of the sedimentation tank 1. The liquid level of the sewage in the sedimentation tank 1 slightly submerges the bottom end of the scraper 10. The scraper 10 is installed on the bracket 8 through a plurality of slide rods 9 and can be lifted and lowered. The sewage after precipitation is discharged from the water outlet pipe 4 into the filtering mechanism 12 for filtering, then enters the disinfection mechanism 13 for disinfection, and finally enters the purification mechanism 14 for purification to complete the multi-stage treatment of sewage. When there is a lot of scum on the top of the sewage, the driving mechanism 7 is started to drive the slider 6 to move to the right, driving the scraper 10 to move to the right. The scraper 10 pushes the scum on the right liquid level to the right and pushes the scum onto the first inclined surface 21 of the inclined slideway 2 on the right. The scraper 10 continues to move to the right. The scraper 10 pushes the scum to the right along the first inclined surface 21. At this time, the scraper 10 gradually moves up, and a plurality of slide rods 9 also gradually slide up, and a plurality of springs 11 are compressed until the scum is pushed onto the second inclined surface 22, and the scum drains away along the second inclined surface 22. Then the driving mechanism 7 drives the slider 6 to move to the left, driving the scraper 10 to move to the left. The scraper 10 slides along the first inclined surface 21. Under the action of a plurality of springs 11, the scraper 10 gradually moves down. After separating from the first inclined surface 21, it re-inserts into the sewage liquid level. Then, driven by the driving mechanism 7, the scraper 10 moves to the left again, and pushes the scum on the left liquid level to the first inclined surface 21 of the inclined slideway 2 on the left, and finally pushes it onto the second inclined surface 22 to drain away. Therefore, the scum on the right liquid level of the scraper 10 is pushed to the inclined slideway 2 on the right to drain away, and the scum on the left liquid level of the scraper 10 is pushed to the inclined slideway 2 on the left to drain away. The scum on the sewage surfaces on both the left and right sides of the scraper 10 can be cleaned up. By using the scraper 10 and the two inclined slideways 2, the scum on the sewage surface can be effectively cleaned up.

[0040] Further, the two collection boxes 15 are respectively fixedly arranged on the left and right sides of the sedimentation tank 1.

[0041] In this embodiment, the two collection boxes 15 are used to catch the scum drained from the two inclined slideways 2 for subsequent treatment.

[0042] Further, the lead screw 71 is rotatably connected to the top frame 5, threadedly connected to the slider 6, and passes through the slider 6. The motor 72 is fixedly arranged on one side of the top frame 5, and the output end of the motor 72 is fixedly connected to the lead screw 71.

[0043] In this embodiment, the motor 72 drives the lead screw 71 to rotate, and the lead screw 71 drives the slider 6 to slide.

[0044] Further, the rod body 91 is fixedly connected to the scraper 10, slidably connected to the bracket 8, and passes through the bracket 8; the limit block 92 is fixedly arranged at the top of the rod body 91.

[0045] In this embodiment, the rod body 91 is slidably mounted on the bracket 8, and the limit block 92 is used to prevent the rod body 91 from detaching from the bracket 8.

[0046] Further, the filter tank 121 is communicatively arranged on one side of the water outlet pipe 4; the coarse fiber filter plate 122 is slidably arranged in the filter tank 121; the activated carbon particle filter plate 123 is slidably arranged in the filter tank 121; the sintered activated carbon filter plate 124 is slidably arranged in the filter tank; the PP cotton filter plate 125 is slidably arranged in the filter tank 121.

[0047] In this embodiment, there are guide rails in the filter tank 121 for slidably mounting the coarse fiber filter plate 122, the activated carbon particle filter plate 123, the sintered activated carbon filter plate 124 and the PP cotton filter plate 125, which can be taken out for replacement or cleaning, and the sewage is further filtered by the coarse fiber filter plate 122, the activated carbon particle filter plate 123, the sintered activated carbon filter plate 124 and the PP cotton filter plate 125.

[0048] Further, the first connecting pipe 131 is communicatively arranged on one side of the filter tank 121; the disinfection tank 132 is communicatively arranged on one side of the first connecting pipe 131; the stirrer 133 is arranged on the disinfection tank 132.

[0049] In this embodiment, the filtered sewage enters the disinfection tank 132 through the first connecting pipe 131. After adding disinfectant through the chemical addition port at the top of the disinfection tank 132, the stirrer 133 is started to mix the sewage and the disinfectant evenly for disinfection.

[0050] Further, the second connecting pipe 141 is communicatively connected to one side of the disinfection tank 132; the purification tank 142 is communicatively connected to one side of the second connecting pipe 141; a plurality of the branch pipes 143 are respectively fixedly connected to the purification tank 142 and respectively pass through the purification tank 142; a plurality of the aeration discs 144 are communicatively connected to each of the branch pipes 143; the main pipe 145 is communicatively connected to the plurality of branch pipes 143 and is located on one side of the plurality of branch pipes 143; the air pump 146 is communicatively connected to one side of the main pipe 145; the ozone generator 147 is communicatively connected to one side of the air pump 146; the drain pipe 148 is communicatively connected to one side of the purification tank 142.

[0051] In this embodiment, the sewage after disinfection enters the purification tank 142 through the second connecting pipe 141. The ozone generator 147 is started, and ozone is discharged into the main pipe 145 through the air pump 146, then discharged from the main pipe 145 into the plurality of branch pipes 143, and finally introduced into the sewage through the plurality of aeration discs 144. The strong oxidizing property of ozone is utilized to further purify the sewage, and the purified sewage is discharged from the drain pipe 148.

[0052] Further, the treatment assembly further includes two scraping mechanisms 16; the two scraping mechanisms 16 are respectively arranged at the bottom of the bracket 8 and are used for scraping the scum adhered to both sides of the scraper 10.

[0053] In this embodiment, when the scraper 10 pushes to clean the scum, some scum will adhere to the left and right sides of the scraper 10. Therefore, the two scraping mechanisms 16 are used to clean the scum adhered to the left and right sides of the scraper 10.

[0054] Further, the scraping mechanism 16 includes two telescopic rods 161, a cleaning plate 162 and an electric push rod 163; the two telescopic rods 161 are fixedly arranged at the bottom of the bracket 8; the cleaning plate 162 is fixedly arranged at the bottoms of the two telescopic rods 161; the electric push rod 163 is fixedly arranged at the bottom of the bracket 8, and the output end of the electric push rod 163 is fixedly connected to the cleaning plate 162.

[0055] In this embodiment, the telescopic rod 161 can freely stretch and retract and is used for guiding the lifting of the cleaning plate 162. The electric push rod 163 is used to drive the lifting of the cleaning plate 162. After the scraper 10 finishes cleaning the scum and resets, the electric push rod 163 is started to drive the cleaning plate 162 to move downward, scrape the scum adhered to the side of the scraper 10, and push it into the sewage.

[0056] A sewage treatment device with multi-stage treatment functions according to this embodiment. The water inlet pipe 3 is used to discharge sewage into the sedimentation tank 1. After impurities are precipitated, the sewage is discharged from the water outlet pipe 4. The top frame 5 is used to slidably install the slider 6. The driving mechanism 7 is used to drive the slider 6 to slide, thereby driving the scraper 10 to displace left and right at the top of the sedimentation tank 1. The liquid level of the sewage in the sedimentation tank 1 slightly submerges the bottom end of the scraper 10. The scraper 10 is installed on the bracket 8 through a plurality of slide rods 9 and can be lifted and lowered. The sewage after precipitation is discharged from the water outlet pipe 4 into the filtering mechanism 12 for filtering, then enters the disinfection mechanism 13 for disinfection, and finally enters the purification mechanism 14 for purification, completing the multi-stage treatment of sewage. When there is a lot of scum on the top of the sewage, the driving mechanism 7 is started to drive the slider 6 to move to the right, driving the scraper 10 to move to the right. The scraper 10 pushes the scum on the right liquid surface to the right and pushes the scum onto the first inclined surface 21 of the inclined slideway 2 on the right. The scraper 10 continues to move to the right. The scraper 10 pushes the scum to the right along the first inclined surface 21. At this time, the scraper 10 gradually moves upward, and a plurality of slide rods 9 also gradually slide upward, and a plurality of springs 11 are compressed until the scum is pushed onto the second inclined surface 22. The scum drains away along the second inclined surface 22. Then the driving mechanism 7 drives the slider 6 to move to the left, driving the scraper 10 to move to the left. The scraper 10 slides along the first inclined surface 21. Under the action of a plurality of springs 11, the scraper 10 gradually moves downward. After disengaging from the first inclined surface 21, it re-inserts into the sewage liquid surface. Then, driven by the driving mechanism 7, the scraper 10 moves to the left again, and also pushes the scum on the left liquid surface to the first inclined surface 21 of the inclined slideway 2 on the left, and finally pushes it onto the second inclined surface 22 to drain away. Therefore, the scum on the right liquid surface of the scraper 10 is pushed to the inclined slideway 2 on the right to drain away, and the scum on the left liquid surface of the scraper 10 is pushed to the inclined slideway 2 on the left to drain away. The scum on the sewage surfaces on both the left and right sides of the scraper 10 can be cleaned up. By using the scraper 10 and the two inclined slideways 2, the scum on the sewage surface can be effectively cleaned. It should be noted that when the scraper 10 slides upward along the first inclined surface 21, the height will gradually increase, and the spring 11 is gradually compressed. When the scraper 10 slides downward along the first inclined surface 21, the height gradually decreases until it returns to the initial height.

[0057] The second embodiment of this application is as follows:

[0058] A sewage treatment system with multi-stage treatment functions provided by the present invention includes the above-mentioned sewage treatment device with multi-stage treatment functions.

[0059] The above disclosure is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A sewage treatment device with multi-stage treatment functions, including a sedimentation tank; characterized in that, it further includes a treatment component; The treatment component includes two inclined chutes, a water inlet pipe, a water outlet pipe, a top frame, a slider, a driving mechanism, a bracket, a plurality of sliding rods, a scraper, a plurality of springs, a filtering mechanism, a disinfection mechanism and a purification mechanism; The two inclined chutes are respectively fixedly arranged on the left and right sides of the top of the sedimentation tank; the inclined chutes have a first inclined surface and a second inclined surface; the water inlet pipe is communicated and arranged on one side of the sedimentation tank; the water outlet pipe is communicated and arranged on the side of the sedimentation tank away from the water inlet pipe; the top frame is fixedly arranged on the top of the sedimentation tank; the slider is slidably arranged on the top frame; the driving mechanism is arranged on the top frame for driving the slider to slide; the bracket is fixedly arranged at the bottom of the slider; a plurality of the sliding rods are respectively slidably arranged on the bracket and respectively pass through the bracket; the scraper is fixedly arranged at the bottoms of the plurality of sliding rods; a plurality of the springs are respectively sleeved on the plurality of sliding rods and are respectively located between the scraper and the bracket; the filtering mechanism is communicated and arranged on one side of the water outlet pipe; the disinfection mechanism is communicated and arranged on one side of the filtering mechanism; the purification mechanism is communicated and arranged on one side of the disinfection mechanism.

2. The sewage treatment device with multi-stage treatment functions according to claim 1, characterized in that, the treatment component further includes two collection boxes; The two collection boxes are respectively fixedly arranged on the left and right sides of the sedimentation tank.

3. The sewage treatment device with multi-stage treatment functions according to claim 2, characterized in that, the driving mechanism includes a lead screw and a motor; The lead screw is rotatably connected to the top frame, threadedly connected to the slider and passes through the slider; the motor is fixedly arranged on one side of the top frame, and the output end of the motor is fixedly connected to the lead screw.

4. The sewage treatment device with multi-stage treatment functions according to claim 3, characterized in that, the sliding rod includes a rod body and a limit block; The rod body is fixedly connected to the scraper, slidably connected to the bracket and passes through the bracket; the limit block is fixedly arranged at the top of the rod body.

5. The sewage treatment device with multi-stage treatment functions according to claim 4, characterized in that, the filtering mechanism includes a filter tank, a coarse fiber filter plate, an activated carbon particle filter plate, a sintered activated carbon filter plate and a PP cotton filter plate; The filter tank is communicated and arranged on one side of the water outlet pipe; the coarse fiber filter plate is slidably arranged in the filter tank; the activated carbon particle filter plate is slidably arranged in the filter tank; the sintered activated carbon filter plate is slidably arranged in the filter tank; the PP cotton filter plate is slidably arranged in the filter tank.

6. The sewage treatment device with multi-stage treatment functions according to claim 5, characterized in that, the disinfection mechanism includes a first connecting pipe, a disinfection tank and a stirrer; The first connecting pipe is communicated and arranged on one side of the filter tank; the disinfection tank is communicated and arranged on one side of the first connecting pipe; the stirrer is arranged on the disinfection tank.

7. A sewage treatment device with multi-stage treatment functions as claimed in claim 6, wherein, the purification mechanism includes a second connecting pipe, a purification tank, a plurality of branch pipes, a plurality of aeration discs, a main pipe, an air pump, an ozone generator and a drain pipe; the second connecting pipe is communicatively connected to one side of the disinfection tank; the purification tank is communicatively connected to one side of the second connecting pipe; the plurality of branch pipes are respectively fixedly connected to the purification tank and respectively pass through the purification tank; a plurality of the aeration discs are communicatively connected to each of the branch pipes; the main pipe is respectively communicatively connected to the plurality of branch pipes and is located on one side of the plurality of branch pipes; the air pump is communicatively connected to one side of the main pipe; the ozone generator is communicatively connected to one side of the air pump; the drain pipe is communicatively connected to one side of the purification tank.

8. A sewage treatment system with multi-stage treatment functions, wherein, it includes a sewage treatment device with multi-stage treatment functions as claimed in any one of claims 1 to 7.

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