Urban sewage treatment device

Abstract

The utility model relates to sewage treatment equipment technical field, concretely relates to a kind of urban sewage treatment device, including the cabinet of rectangular setting, cavity is equipped in the cabinet, rotating liquid level floating oil collection device is equipped in the cavity, the left side of the cabinet is equipped with the floating oil collection device being communicated with the cavity, the lower end of the cabinet is equipped with multiple supporting feet, the right side end of the cabinet is equipped with sewage inlet pipe and drain pipe being communicated with the cavity, water pump is equipped on the sewage inlet pipe;Cavity is equipped with the partition that is vertically arranged, the upper end of the partition is spaced apart below the rotating liquid level floating oil collection device, the cavity is divided into oil removal area and buffer area distributed left and right, the problem that the collection effect of collecting sewage floating oil by scraper is not ideal is solved.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment technology, specifically to an urban sewage treatment device. Background Technology

[0002] Urban sewage refers to domestic sewage, industrial wastewater, and runoff sewage within urban areas. It is generally collected by urban pipe networks and should be treated by sewage treatment plants before being discharged into water bodies.

[0003] In the process of sewage treatment, oily wastewater with high oil content is usually recovered. Conventional oil floating devices usually collect oil by scraping. However, scraping is not a thorough way to remove oil from the liquid surface, resulting in an unsatisfactory oil collection effect. Utility Model Content

[0004] The purpose of this invention is to provide a municipal sewage treatment device that solves the problem of unsatisfactory collection effect of collecting floating oil in sewage by scraping.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A municipal wastewater treatment device includes a rectangular cabinet with a cavity inside. A rotating oil surface collection device is installed within the cavity. An oil surface collection device connected to the cavity is located on the left side of the cabinet. Multiple support legs are provided at the lower end of the cabinet. A wastewater inlet pipe and a drain pipe, both connected to the cavity, are located on the right side of the cabinet. A water pump is installed on the wastewater inlet pipe. Vertically arranged partitions are provided within the cavity, with their upper ends spaced below the rotating oil surface collection device, dividing the cavity into a left-right distributed oil removal zone and a buffer zone.

[0006] A further technical solution is that the rotating liquid surface oil collection device includes a horizontally arranged mounting plate. The lower end of the mounting plate is provided with two spaced-apart fixed blocks and a rotating shaft rotatably arranged between the fixed blocks. Two spaced-apart first toothed discs are fixedly sleeved on the rotating shaft. The mounting plate is provided with two synchronous motors. The output ends of the two synchronous motors are each provided with a second toothed disc. The mounting plate is provided with two first openings. The lower ends of the two second toothed discs respectively rotatably pass through the two first openings and mesh with the two first toothed discs. The rotating shaft is provided with an oil collection component.

[0007] A further technical solution is that the oil spill collection assembly includes multiple collection discs fixedly sleeved on the rotating shaft, with multiple soft burrs provided along the left and right end faces of each collection disc. The mounting plate has multiple second openings corresponding to the collection discs, and a portion of the collection disc rotates through the second openings. The mounting plate has a downwardly inclined collection plate at one end near the oil spill collection device, and side panels are provided on both sides of the collection plate. The side panels, collection plate, and inner wall of the cabinet form an oil spill collection cavity. The oil spill collection device is connected to the oil spill collection cavity. The mounting plate has scrapers at one end near the collection plate and on both sides of each collection disc.

[0008] A further technical solution is that the scraper includes a plate body connected to the mounting plate by bolts, and a diversion plate is provided at one end of the plate body facing the collection plate. The upper end of the diversion plate is recessed downward along its length to form a diversion groove, and the end of the diversion plate near the collection plate is provided with an upwardly protruding scraping protrusion.

[0009] A further technical solution is that the oil spill collection device includes an oil spill collection tank and a connecting pipe, one end of which passes through the cabinet and is connected to the oil spill collection chamber, and the other end is connected to the oil spill collection tank.

[0010] A further technical solution is that manholes are provided at both the top and bottom ends of the cabinet.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The sewage pumped into the cavity is blocked by a baffle to reduce the flow rate of the incoming water. The sewage in the oil removal zone is treated by a rotating liquid surface oil collection device to collect the floating oil. The collected floating oil is then collected in an oil collection device for easy recycling. The entire device has a simple structure and can collect floating oil and dispersed oil through the rotating liquid surface oil collection device, thus improving the oil collection efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a municipal sewage treatment device according to the present invention.

[0013] Figure 2 This is a schematic diagram of the rotating liquid surface oil collection device of this utility model.

[0014] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0015] Figure 4 for Figure 2 A magnified view of a portion of point B in the middle.

[0016] Figure 5 This is a schematic diagram of the rotating liquid surface oil collection device installed inside the cabinet in this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 of the present utility model and are not intended to limit the present utility model.

[0018] Example: refer to Figures 1 to 5 As shown, a municipal sewage treatment device is disclosed, including a rectangular cabinet 1 with a cavity inside. A rotating oil surface collection device is installed in the cavity. An oil surface collection device connected to the cavity is located on the left side of the cabinet 1. Multiple support legs 2 are provided at the lower end of the cabinet 1. A sewage inlet pipe 3 and a drain pipe 4, both connected to the cavity, are provided at the right side of the cabinet 1. A water pump 5 is installed on the sewage inlet pipe 3. A vertically arranged partition 6 is provided in the cavity. The upper end of the partition 6 is spaced below the rotating oil surface collection device, dividing the cavity into a left-right distributed oil removal zone and a buffer zone.

[0019] In this invention, the sewage pumped into the cavity by the water pump 5 is blocked by the baffle 6 to reduce the flow rate of the incoming water. The sewage in the oil removal zone is collected by a rotating liquid surface oil collection device to collect the floating oil. The collected floating oil is then collected in the floating oil collection device, which facilitates the recycling of the floating oil. The entire device has a simple structure. The rotating liquid surface oil collection device can collect floating oil and dispersed oil, thereby improving the floating oil collection efficiency.

[0020] Specifically, the rotating oil surface collection device includes a horizontally arranged mounting plate 7. The lower end of the mounting plate 7 is provided with two spaced-apart fixed blocks 8 and a rotating shaft 9 rotatably arranged between the fixed blocks 8. Two spaced-apart first gear discs 10 are fixedly sleeved on the rotating shaft 9. The mounting plate 7 is provided with two synchronous motors 11. The output ends of the two synchronous motors 11 are each provided with a second gear disc 12. The mounting plate 7 is provided with two first openings 13. The lower ends of the two second gear discs 12 rotatably pass through the two first openings 13 and mesh with the two first gear discs 10. The rotating shaft 9 is provided with an oil surface collection component.

[0021] The oil spill collection assembly includes multiple collection discs 14 fixedly sleeved on the rotating shaft 9. Multiple soft burrs 15 are provided along the left and right end faces of each collection disc 14. The mounting plate 7 is provided with multiple second opening slots 16 corresponding to the collection discs 14. A portion of the collection disc 14 rotates through the second opening slots 16. The mounting plate 7 is provided with a downwardly inclined collection plate 17 at one end near the oil spill collection device. The collection plate 17 is provided with surrounding plates 18 on both sides. The surrounding plates 18, the collection plate 17, and the inner wall of the cabinet 1 form an oil spill collection cavity. The oil spill collection device is connected to the oil spill collection cavity. The mounting plate 7 is provided with scrapers at one end near the collection plate 17 and on both sides of each collection disc 14.

[0022] The scraper includes a plate body 19 connected to the mounting plate 7 by bolts. A diversion plate 20 is provided at one end of the plate body 19 facing the collection plate 14. The upper end of the diversion plate 20 is recessed downward along its length to form a diversion groove. The end of the diversion plate 20 near the collection plate 14 is provided with an upwardly protruding scraping protrusion 21.

[0023] During the oil spill collection process, two synchronous motors 11 rotate, driving the second geared disc 12 to rotate. The second geared disc 12, in turn, drives the first geared disc 10 to rotate. The first geared disc 10 then drives the rotating shaft 9 to rotate, which in turn drives multiple collection discs 14 fixedly mounted on the rotating shaft 9 to rotate. Figure 2 As shown, a portion of the lower end of the collection plate 14 penetrates the surface of the floating oil and extends into the surface of the sewage. During the rotation of the collection plate 14, the floating oil comes into contact with the collection plate 14 itself and the soft bristles 15 set on the collection plate 14. During the rotation, the floating oil is driven to detach from the surface of the sewage until the soft bristles 15 and the scraping protrusions 21 come into contact. The floating oil adhering to the soft bristles 15 and the collection plate 14 flows to the diversion plate 20 after passing through the scraping protrusions 21. The floating oil is then diverted to the floating oil collection chamber through the diversion groove on the diversion plate 20. Finally, the floating oil is transported to the floating oil collection tank 22 through the connecting pipe 23. Specifically, the end of the collection plate 17 near the cabinet 1 is set in a downward V-shape to facilitate the flow of floating oil to the lowest point of the floating oil collection chamber. At the same time, the connecting pipe 23 is connected to the lowest point of the floating oil collection chamber to facilitate the collection of floating oil.

[0024] The cabinet 1 is provided with manholes 24 at both the top and bottom, which facilitates cleaning and daily maintenance of the cabinet 1.

[0025] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A device for treating municipal wastewater, characterized by: The device includes a rectangular cabinet with a cavity inside. A rotating oil surface collection device is installed within the cavity. An oil surface collection device connected to the cavity is located on the left side of the cabinet. Multiple support legs are provided at the lower end of the cabinet. A sewage inlet pipe and a drainage pipe, both connected to the cavity, are located on the right side of the cabinet. A water pump is installed on the sewage inlet pipe. Vertically arranged partitions are provided within the cavity, with their upper ends spaced below the rotating oil surface collection device, dividing the cavity into a left-right distributed oil removal zone and a buffer zone.

2. The device for treating municipal wastewater according to claim 1, characterized in that: The rotating oil surface collection device includes a horizontally arranged mounting plate. The lower end of the mounting plate has two spaced-apart fixed blocks and a rotating shaft rotatably arranged between the fixed blocks. Two spaced-apart first toothed discs are fixedly sleeved on the rotating shaft. The mounting plate has two synchronous motors, and the output ends of the two synchronous motors are each provided with a second toothed disc. The mounting plate has two first openings. The lower ends of the two second toothed discs rotatably pass through the two first openings and mesh with the two first toothed discs. An oil surface collection component is provided on the rotating shaft.

3. A device for treating municipal wastewater according to claim 2, characterized in that: The oil spill collection assembly includes multiple collection discs fixedly mounted on the rotating shaft. Multiple soft burrs are provided along the left and right end faces of each collection disc. The mounting plate has multiple second openings corresponding to the collection discs. A portion of the collection disc rotates through the second openings. The mounting plate has a downwardly inclined collection plate at one end near the oil spill collection device. The collection plate has side panels on both sides. The side panels, collection plate, and inner wall of the cabinet form an oil spill collection cavity. The oil spill collection device is connected to the oil spill collection cavity. The mounting plate has scrapers at one end near the collection plate and on both sides of each collection disc.

4. The device for treating municipal wastewater according to claim 3, characterized in that: The scraper includes a plate body connected to the mounting plate by bolts. A flow guide plate is provided at one end of the plate body facing the collection plate. The upper end of the flow guide plate is recessed downward along its length to form a flow guide groove. The end of the flow guide plate near the collection plate is provided with an upwardly protruding scraping protrusion.

5. A device for treating municipal wastewater according to claim 4, characterized in that: The oil spill collection device includes an oil spill collection tank and a connecting pipe. One end of the connecting pipe passes through the cabinet and is connected to the oil spill collection chamber, and the other end is connected to the oil spill collection tank.

6. The device for treating municipal wastewater according to claim 1, characterized in that: The cabinet has manholes at both the top and bottom.

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