Sewage pool capable of automatically separating oil and water

Abstract

The utility model relates to the technical field of chemical sewage treatment, and discloses an automatic oil-water separation sewage pool which comprises a sewage pool body, an oil skimming area partition plate is fixedly connected to the lower portion of one side of an inner cavity of the sewage pool body, and a main oil separation area partition plate and an auxiliary oil separation area partition plate are fixedly connected to one side of the oil skimming area partition plate. A pore plate is fixedly connected to one side of the main and auxiliary oil separation area partition plate, a clear water area partition plate is fixedly connected to one side of the pore plate, an oil separation overflow pipe fixedly communicates with the clear water area partition plate, the oil stain cleaning assembly comprises vertical rods symmetrically and fixedly connected to one side of the pore plate, and the outer portions of the two vertical rods are slidably connected with the same floating plate; one side of the floating plate is fixedly connected with a scraping plate and is in contact with the surface of the pore plate, and the problems that sewage COD (Chemical Oxygen Demand) is increased, the sewage treatment difficulty is increased and the treatment cost is increased due to the fact that sewage is directly conveyed into a sewage treatment system are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical sewage treatment, in particular to a sewage pool with automatic oil-water separation. Background Art

[0002] Sewage refers to the discharged water from life and production that is polluted to a certain extent. Since it has lost its original use function, it is referred to as sewage. It is mainly the water used in life. It contains more organic matter and is easier to treat. Sewage is usually treated in a special sewage pool.

[0003] In oil and fat chemical production enterprises, the main pollutant in the wastewater is oil and fat. If it is directly sent to the sewage treatment system, it will not only increase the COD of the sewage and increase the difficulty of sewage treatment, but also lead to higher treatment costs. For this reason, we provide a sewage pool with automatic oil-water separation. Utility Model Content

[0004] In order to solve the problem in the above background technology that directly sending sewage to the sewage treatment system will not only increase the COD of sewage, increase the difficulty of sewage treatment, but also lead to increased treatment costs, the utility model provides a sewage pool with automatic oil-water separation.

[0005] The utility model adopts the following technical scheme to realize: a sewage pool with automatic oil-water separation, comprising:

[0006] A sewage tank body, wherein an oil skimming zone partition is fixedly connected to a lower portion of one side of the inner cavity of the sewage tank body, a primary and secondary oil-separating zone partition is fixedly connected to one side of the oil skimming zone partition, a perforated plate is fixedly connected to one side of the primary and secondary oil-separating zone partition, a clean water zone partition is fixedly connected to one side of the perforated plate, a sewage discharge pipeline is fixedly connected to an upper portion of one side of the sewage tank body, and an oil-separating overflow pipe is fixedly connected to the clean water zone partition;

[0007] The oil cleaning component comprises vertical rods symmetrically fixedly connected to one side of the orifice plate, two groups of the vertical rods are externally slidably connected to the same floating plate, one side of the floating plate is fixedly connected to a scraper and contacts the surface of the orifice plate.

[0008] As a further improvement of the above scheme, the oil skimming area partition, the main and secondary oil separator area partitions, the orifice plate and the clean water area partition divide the internal space of the sewage pool body into the oil skimming area, the main oil separator area, the secondary oil separator area and the clean water area.

[0009] As a further improvement of the above scheme, the oil skimming area partition, the main and auxiliary oil separation area partitions and the clean water area partition are all made of concrete casting plates and have a thickness of 10-30 cm.

[0010] As a further improvement of the above solution, the sewage outlet of the sewage pipeline extends to the main oil separation area.

[0011] As a further improvement of the above solution, the liquid inlet of the oil-water separator overflow pipe is located at the lower part of the inner cavity of the secondary oil-water separator area, and the liquid outlet of the oil-water separator overflow pipe extends to the upper part of the inner cavity of the clean water area.

[0012] As a further improvement of the above solution, a water pump is further provided on the side of the clean water area away from the secondary oil separation area.

[0013] As a further improvement of the above solution, an anti-drop plate is fixedly connected to the top end of the vertical rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model can make the oil in the sewage flowing into the main oil separation area overflow into the oil skimming area through the setting of the oil skimming area partition, thereby facilitating the natural separation of oil and water in the main oil separation area. The setting of the orifice plate makes it possible to filter the oil in the sewage, thereby improving the separation effect of grease in the sewage. The setting of the oil separation overflow pipe can maintain sufficient separation time between oil and water, thereby ensuring the thoroughness of the separation of oil and water, and has strong practicality.

[0016] 2. The utility model can drive the floating plate floating on the sewage surface to slide toward the upper part of the vertical rod through the rising sewage level inside the secondary oil-water separator. The floating plate moves upward vertically so that the scraper can be moved upward together, thereby facilitating the cleaning of oil stains on the surface of the orifice plate to prevent clogging. Conversely, when the liquid level drops, the scraper can automatically reset under the action of gravity, further improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from top view;

[0018] Figure 2 This is a schematic diagram of the vertical sectional three-dimensional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the oil cleaning component of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the orifice plate of the utility model.

[0021] Description of main symbols:

[0022] 1. Sewage pool body; 2. Oil-skimming area partition; 3. Main and secondary oil-separating area partition; 4. Orifice plate; 5. Clean water area partition; 6. Sewage pipeline; 7. Oil-separating overflow pipe; 8. Oil-skimming area; 9. Main oil-separating area; 10. Secondary oil-separating area; 11. Clean water area; 101. Vertical rod; 102. Floating plate; 103. Scraper; 104. Anti-slip plate. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0024] Embodiment 1:

[0025] Please combine Figure 1-4 , a sewage pool for automatic oil-water separation of this embodiment includes:

[0026] A sewage tank body 1, an oil skimming zone partition 2 is fixedly connected to the lower part of one side of the inner cavity of the sewage tank body 1, a main and auxiliary oil separation zone partition 3 is fixedly connected to one side of the oil skimming zone partition 2, a hole plate 4 is fixedly connected to one side of the main and auxiliary oil separation zone partition 3, a clean water zone partition 5 is fixedly connected to one side of the hole plate 4, a sewage discharge pipeline 6 is fixedly connected to the upper part of one side of the sewage tank body 1, and an oil separation overflow pipe 7 is fixedly connected to the clean water zone partition 5. The oil skimming zone partition 2, the main and auxiliary oil separation zone partition 3, the hole plate 4 and the clean water zone partition 5 divide the internal space of the sewage tank body 1 into an oil skimming zone 8, a main oil separation zone 9, and an auxiliary oil separation zone. 10 and the clean water area 11, the oil skimming area partition 2, the main and auxiliary oil separation area partition 3 and the clean water area partition 5 are all made of concrete casting plates with a thickness of 10-30cm, which can improve the corrosion resistance of the device, thereby extending its service life. The sewage outlet of the sewage pipeline 6 extends to the main oil separation area 9, the liquid inlet of the oil separation overflow pipe 7 is located at the lower part of the inner cavity of the auxiliary oil separation area 10, and the liquid outlet of the oil separation overflow pipe 7 extends to the upper part of the inner cavity of the clean water area 11. A water pump is also provided on the side of the clean water area 11 away from the auxiliary oil separation area 10, so as to pump the sewage inside the clean water area 11 out of the sewage pool body 1;

[0027] The oil cleaning component includes a vertical rod 101 symmetrically fixedly connected to one side of the orifice plate 4, two groups of vertical rods 101 are externally slidably connected to the same floating plate 102, one side of the floating plate 102 is fixedly connected to a scraper 103 and contacts the surface of the orifice plate 4, and the top of the vertical rod 101 is fixedly connected to an anti-detachment plate 104, which can prevent the floating plate 102 from detaching from the vertical rod 101.

[0028] The implementation principle of an automatic oil-water separation sewage pool in the embodiment of the present application is as follows: first, the sewage is discharged into the sewage pool body 1 through the sewage discharge pipeline 6, and the sewage will flow into the main oil separation area 9. When the sewage reaches the oil skimming area partition 2, the oil on the upper layer of the sewage will overflow into the oil skimming area 8, thereby facilitating the natural separation of oil and water in the main oil separation area 9, and the sewage on the lower layer will flow into the secondary oil separation area 10 through the bottom opening of the main and secondary oil separation area partitions 3. The orifice plate 4 in the secondary oil separation area 10 can block part of the oil, and as the sewage level inside the secondary oil separation area 10 rises, it can drive the floating plate 102 floating on the sewage surface to slide toward the upper part of the vertical rod 101. The floating plate 102 moves vertically upward so that it can drive the scraper 103 to move upward together, thereby facilitating the cleaning of the oil on the surface of the orifice plate 4 to prevent blockage. Conversely, when the liquid level drops, the scraper 103 moves upward under the action of gravity. 03 can automatically reset, and can scrape the surface of the orifice plate 4 again during the descending process. When the liquid level in the auxiliary oil-water separator 10 reaches the height of the horizontal pipe section of the oil-water separator overflow pipe 7, the water at the bottom of the main oil-water separator 9 will flow into the clean water area 11 through the oil-water separator overflow pipe 7, and the oil will float on the water surface and be retained in the auxiliary oil-water separator 10, thereby realizing the automatic isolation of the oil in the oil-containing sewage. Finally, the water pump is started to pump the sewage in the clean water area 11 out of the sewage tank body 1. The size of the sewage tank body 1 and the pipe size of the oil-water separator overflow pipe 7 can be flexibly determined according to the sewage flow rate entering the tank. The larger the sewage flow rate, the larger the size and volume of the sewage tank body 1 should be designed, and the larger the diameter of the oil-water separator overflow pipe 7 should also be designed. When a certain amount of oil accumulates in the skimming area 8, it can be cleaned up to keep the sewage tank body 1 in a better working state and give full play to the automatic oil separation function.

[0029] Embodiment 2:

[0030] Based on Example 1, this embodiment is further improved in that the oil skimming area partition 2, the main and secondary oil separation area partitions 3 and the clean water area partition 5 are all made of carbon steel plates or stainless steel metal plate welded plates with a thickness of 3 to 10 mm, which can further improve the corrosion resistance of the device.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A sewage pool with automatic oil-water separation, characterized in that: include: A sewage tank body (1), wherein an oil skimming zone partition (2) is fixedly connected to the lower part of one side of the inner cavity of the sewage tank body (1), a main and auxiliary oil separation zone partition (3) is fixedly connected to one side of the oil skimming zone partition (2), a perforated plate (4) is fixedly connected to one side of the main and auxiliary oil separation zone partition (3), a clean water zone partition (5) is fixedly connected to one side of the perforated plate (4), a sewage discharge pipeline (6) is fixedly connected to the upper part of one side of the sewage tank body (1), and an oil separation overflow pipe (7) is fixedly connected to the clean water zone partition (5); An oily dirt cleaning assembly comprises vertical rods (101) symmetrically fixedly connected to one side of a perforated plate (4); two groups of the vertical rods (101) are externally slidably connected to the same floating plate (102); a scraper (103) is fixedly connected to one side of the floating plate (102) and contacts the surface of the perforated plate (4).

2. The automatic oil-water separation sewage pool according to claim 1, characterized in that: The oil skimming zone partition (2), the main and auxiliary oil separation zone partitions (3), the orifice plate (4) and the clean water zone partition (5) divide the internal space of the sewage pool body (1) into an oil skimming zone (8), a main oil separation zone (9), an auxiliary oil separation zone (10) and a clean water zone (11).

3. The automatic oil-water separation sewage pool according to claim 1, characterized in that: The oil skimming area partition (2), the main and auxiliary oil separation area partitions (3) and the clean water area partition (5) are all made of concrete casting plates and have a thickness of 10-30 cm.

4. The automatic oil-water separation sewage pool according to claim 1, characterized in that: The sewage outlet of the sewage pipeline (6) extends to the main oil separation area (9).

5. The automatic oil-water separation sewage pool according to claim 1, characterized in that: The liquid inlet of the oil-water separation overflow pipe (7) is located at the lower part of the inner cavity of the auxiliary oil-water separation area (10), and the liquid outlet of the oil-water separation overflow pipe (7) extends to the upper part of the inner cavity of the clean water area (11).

6. The automatic oil-water separation sewage pool according to claim 1, characterized in that: A water pump is also provided on the side of the clean water area (11) away from the secondary oil separation area (10).

7. The automatic oil-water separation sewage pool according to claim 1, characterized in that: The top end of the vertical rod (101) is fixedly connected with an anti-drop plate (104).

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