Petrochemical environment-friendly sewage treatment device

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a petrochemical environment-friendly sewage treatment device which comprises a box body, an oil separation cavity, an air floatation cavity, a medicament treatment cavity, an air floatation assembly and a mixing assembly, an oil separation cavity, an air floatation cavity and a chemical treatment cavity are formed in one side in the box body, a partition plate is welded in the oil separation cavity, a first baffle and a second baffle are sequentially fixed to the inner top, located on the two sides of the partition plate, of the oil separation cavity through bolts, and an air floatation assembly is arranged at the bottom in the air floatation cavity and comprises an annular water pipe installed at the bottom in the air floatation cavity through an installation frame. The top of the annular water pipe is equidistantly connected with sprayers through threaded grooves. Sewage is treated through an oil separation method, an air flotation method and a chemical treatment method, oil stains in the sewage can be effectively removed, the workload of subsequent filtering materials is reduced, and therefore the frequent period needed by the filtering materials is reduced, the using amount of the filtering materials is reduced, and the device is environmentally friendly and suitable for being widely used and popularized.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a petrochemical environmentally friendly sewage treatment device. Background Art

[0002] Petrochemical wastewater treatment is the process of using by-product gas from oil refining and light oil or heavy oil as raw materials for thermal cracking to produce chemical raw materials such as ethylene, propylene, butene, and further reacting to synthesize various organic chemical products to treat the wastewater discharged by petrochemical joint enterprises.

[0003] Patent No. CN217868191 U discloses a petrochemical wastewater treatment device, including a flotation tank body, an aeration zone is provided on the right side of the flotation tank body, a water inlet fixedly connected to the flotation tank body is provided on the right side of the aeration zone, a baffle fixedly connected to the flotation tank body is provided on the left side of the aeration zone, a conveying pipe is fixedly connected to the bottom end of the aeration zone, the other side of the conveying pipe penetrates the flotation tank body and is connected to an external dissolved air tank, a rotating shaft is rotatably connected to the top of the conveying pipe, four equidistantly distributed air outlet pipes are fixedly connected to the top of the rotating shaft, and a plurality of air outlet holes are provided on the surface of the air outlet pipe. This petrochemical wastewater treatment device transports dissolved air water to the outside through multiple air outlet pipes, thereby increasing the contact area between dissolved air water and sewage, thereby improving the flotation effect of the sewage treatment device, and preventing the poor flotation effect from causing the sewage to need to be treated multiple times.

[0004] The shortcomings of the existing petrochemical wastewater treatment device are that it only treats the oily wastewater by a single flotation method and then directly uses the filter material for filtering, which increases the workload of the filter material and requires frequent replacement of the filter material, thereby increasing the amount of filter material used and is not environmentally friendly. To this end, we propose a petrochemical environmentally friendly wastewater treatment device. Utility Model Content

[0005] Technical issues solved

[0006] In view of the deficiencies of the prior art, the utility model provides a petrochemical environmentally friendly sewage treatment device, which solves the problems raised by the background technology.

[0007] Technical Solution

[0008] The utility model provides the following technical solutions: a petrochemical environmentally friendly sewage treatment device, comprising a box body, an oil separation chamber, an air flotation chamber, a pharmaceutical treatment chamber, an air flotation component and a mixing component;

[0009] An oil-water separator, an air flotation chamber and a chemical treatment chamber are provided on one side of the interior of the box body, a partition is welded inside the oil-water separator, the inner top of the oil-water separator located on both sides of the partition is fixed with a first baffle and a second baffle in sequence by bolts, an air flotation assembly is provided at the bottom of the air flotation chamber, the air flotation assembly includes an annular water pipe installed at the bottom of the air flotation chamber through a mounting frame, the top of the annular water pipe is equidistantly connected with nozzles through threaded grooves, a mixing assembly is provided at the top of the chemical treatment chamber, the mixing assembly includes a top plate fixed to the top of the chemical treatment chamber by bolts, a driving motor is installed at the top of the top plate through a mounting frame, the output shaft of the driving motor located at the bottom of the top plate is connected to a stirring rod through a connecting sleeve, and a water pump is installed at one end of the top of the top plate through a mounting frame.

[0010] Furthermore, a first water inlet pipe is fixed to the water inlet end of the water pump through a clamp, and the bottom end of the first water inlet pipe is located inside the air flotation chamber. A first water outlet pipe is fixed to the water inlet end of the water pump through a clamp, and the first water outlet pipe is located inside the drug processing chamber.

[0011] Furthermore, a pipe joint at one end of the annular water pipe located outside the box is connected to a connecting pipe, and one end of the connecting pipe is connected to an air intake valve via a threaded groove.

[0012] Furthermore, a first through hole is formed through one end of the partition plate, and a second through hole is formed through between the oil separation cavity and the air flotation cavity.

[0013] Furthermore, two ends of the oil separator cavity located outside the box body are respectively connected to a first drain valve and a second drain valve through pipelines.

[0014] Furthermore, one end of the box body is connected to a second water inlet pipe via a flange, and the other end of the box body is connected to a second water outlet pipe via a flange.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] Sewage enters the oil-water separator through the second water inlet pipe and is blocked by the first baffle, so that it falls into the interior of the oil-water separator located on one side of the baffle. As a result, more and more sewage enters the oil-water separator, and the sewage flows through the first through hole to the interior of the oil-water separator located on the other side of the baffle. The suspended matter is removed by utilizing the different relative densities between the suspended matter and water in the sewage. This method can remove oil droplets with larger particles. As a primary treatment, the sewage after the oil-water separation treatment falls into the air flotation chamber through the second through hole. The air inlet valve is opened to allow external compressed air to flow into the annular water pipe through the connecting pipe, and then sprayed out through multiple nozzles. Highly dispersed tiny bubbles are used as carriers to adhere to the suspended matter in the sewage, so that it rises to the water surface with the bubbles and then flows out through the outlet frame. The treatment objects are emulsified oil and hydrophobic fine solid suspended matter.

[0017] Turn on the pump to pump out the sewage in the flotation chamber through the first water inlet pipe, and transport it to the reagent treatment chamber through the first water outlet pipe, add the sewage treatment reagent into the reagent treatment chamber, turn on the drive motor to drive the stirring rod to rotate, mix the sewage and the reagent, and perform the final treatment on the sewage, which can effectively remove the oil stains in the sewage and reduce the workload of the subsequent filtering materials;

[0018] This petrochemical environmentally friendly sewage treatment device treats sewage through oil separation method, air flotation method and chemical treatment method, which can effectively remove oil stains in sewage and reduce the workload of subsequent filtering materials, thereby reducing the frequent cycles required for filtering materials and reducing the amount of filtering materials used, which is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the box body of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the air flotation component of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the hybrid component of the utility model;

[0023] In the figure: 1. box body; 2. oil-water separator chamber; 3. flotation chamber; 4. reagent processing chamber; 5. flotation assembly; 501. annular water pipe; 502. nozzle; 503. connecting pipe; 504. air inlet valve; 6. outlet frame; 7. mixing assembly; 701. top plate; 702. drive motor; 703. stirring rod; 704. water pump; 705. first water inlet pipe; 706. first water outlet pipe; 8. partition; 9. first baffle; 10. second baffle; 11. first through hole; 12. second through hole; 13. second water inlet pipe; 14. second water outlet pipe; 15. first sewage valve; 16. second sewage valve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 In the embodiment of the utility model, it includes a box body 1, an oil separation chamber 2, an air flotation chamber 3, a drug processing chamber 4, an air flotation component 5 and a mixing component 7;

[0026] An oil-water separator 2, an air flotation chamber 3 and a chemical treatment chamber 4 are provided on one side of the housing 1. A partition 8 is welded inside the oil-water separator 2. The inner top of the oil-water separator 2 located on both sides of the partition 8 is fixed with a first baffle 9 and a second baffle 10 in sequence by bolts. An air flotation assembly 5 is provided at the bottom of the air flotation chamber 3. The air flotation assembly 5 includes an annular water pipe 501 installed at the bottom of the air flotation chamber 3 through a mounting frame. The top of the annular water pipe 501 is equidistantly connected with a nozzle 502 through a threaded groove. A mixing assembly 7 is provided at the top of the chemical treatment chamber 4. The mixing assembly 7 includes a top plate 701 fixed to the top of the chemical treatment chamber 4 by bolts. A driving motor 702 is installed on the top of the top plate 701 through a mounting frame. The output shaft of the driving motor 702 located at the bottom of the top plate 701 is connected to a stirring rod 703 through a connecting sleeve. A water pump 704 is installed at one end of the top of the top plate 701 through a mounting frame.

[0027] Among them, the water inlet end of the water pump 704 is fixed with a first water inlet pipe 705 through a clamp, and the bottom end of the first water inlet pipe 705 is located inside the flotation chamber 3. The water inlet end of the water pump 704 is fixed with a first water outlet pipe 706 through a clamp, and the first water outlet pipe 706 is located inside the chemical treatment chamber 4. The water pump 704 extracts the sewage in the flotation chamber 3 through the first water inlet pipe 705 and transports it to the chemical treatment chamber 4 through the first water outlet pipe 706.

[0028] Among them, the pipe joint at one end of the annular water pipe 501 located outside the box body 1 is connected to a connecting pipe 503, and one end of the connecting pipe 503 is connected to an air intake valve 504 through a threaded groove. Opening the air intake valve 504 allows external compressed gas to flow into the annular water pipe 501 through the connecting pipe 503.

[0029] A first through hole 11 is formed at one end of the partition plate 8 , and a second through hole 12 is formed between the oil separation chamber 2 and the air flotation chamber 3 . The sewage in the oil separation chamber 2 flows into the air flotation chamber 3 through the second through hole 12 .

[0030] The two ends of the oil trap chamber 2 located outside the box body 1 are respectively connected with a first drain valve 15 and a second drain valve 16 through pipelines. The sludge and the like at the bottom of the oil trap chamber 2 can be pumped out by opening the first drain valve 15 and the second drain valve 16.

[0031] Among them, one end of the box body 1 is connected to a second water inlet pipe 13 through a flange, and the other end of the box body 1 is connected to a second water outlet pipe 14 through a flange. The sewage to be treated flows into the oil separator chamber 2 through the second water inlet pipe 13, and the sewage treated in the chemical treatment chamber 4 flows out through the second water outlet pipe 14.

[0032] The working principle of the utility model is: personnel use a power cord to connect the device to an external power source, and use an air pipe to connect the air inlet valve 504 to an external air supply device. The sewage enters the oil-water separator 2 through the second water inlet pipe 13, is blocked by the first baffle 9, and thus falls into the interior of the oil-water separator 2 on one side of the baffle 8. As a result, more and more sewage enters the oil-water separator 2, and the sewage flows through the first through hole 11 to the interior of the oil-water separator 2 on the other side of the baffle 8. The suspended matter in the sewage is removed by utilizing the different relative densities between the suspended matter and water. This method can remove larger oil droplets as a primary treatment. The sewage after the oil-water treatment falls into the air flotation chamber 3 through the second through hole 12, and the air inlet valve 504 is opened to allow the external compressed air to flow into the annular water pipe 501 through the connecting pipe 503. , and then sprayed out through multiple nozzles 502, using highly dispersed tiny bubbles as carriers to adhere to suspended matter in the sewage, so that it rises to the water surface with the bubbles, and then flows out through the outlet frame 6. The treatment object is emulsified oil and hydrophobic fine solid suspended matter. Turn on the pump 704 to pump out the sewage in the air flotation chamber 3 through the first water inlet pipe 705, and transport it to the agent treatment chamber 4 through the first water outlet pipe 706. Add the sewage treatment agent into the agent treatment chamber 4, turn on the drive motor 702 to drive the stirring rod 703 to rotate, mix the sewage and the agent, and perform the final treatment on the sewage, which can effectively remove oil stains in the sewage and reduce the workload of subsequent filtering materials, thereby reducing the frequent cycles required for filtering materials and reducing the amount of filtering materials used, which is more environmentally friendly.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A petrochemical environmentally friendly sewage treatment device, comprising a housing (1), an oil separation chamber (2), an air flotation chamber (3), a chemical treatment chamber (4), an air flotation component (5) and a mixing component (7); Features: An oil separation chamber (2), an air flotation chamber (3) and a reagent processing chamber (4) are provided on one side of the interior of the box body (1); a partition plate (8) is welded inside the oil separation chamber (2); a first baffle plate (9) and a second baffle plate (10) are fixed in sequence at the inner top of the oil separation chamber (2) located on both sides of the partition plate (8) by bolts; an air flotation assembly (5) is provided at the inner bottom of the air flotation chamber (3); the air flotation assembly (5) comprises an annular water pipe (501) mounted on the inner bottom of the air flotation chamber (3) by a mounting frame; the top of the annular water pipe (501) is screwed The grooves are equidistantly connected with nozzles (502); a mixing assembly (7) is arranged at the top of the reagent processing chamber (4); the mixing assembly (7) comprises a top plate (701) fixed to the top of the reagent processing chamber (4) by bolts; a driving motor (702) is mounted on the top of the top plate (701) via a mounting frame; an output shaft of the driving motor (702) located at the bottom of the top plate (701) is connected to a stirring rod (703) via a connecting sleeve; and a water pump (704) is mounted on one end of the top of the top plate (701) via a mounting frame.

2. A petrochemical environmentally friendly sewage treatment device according to claim 1, Features: A first water inlet pipe (705) is fixed to the water inlet end of the water pump (704) via a clamp, and the bottom end of the first water inlet pipe (705) is located inside the air flotation chamber (3). A first water outlet pipe (706) is fixed to the water inlet end of the water pump (704) via a clamp, and the first water outlet pipe (706) is located inside the drug processing chamber (4).

3. A petrochemical environmentally friendly sewage treatment device according to claim 1, Features: The pipe joint at one end of the annular water pipe (501) located outside the box (1) is connected to a connecting pipe (503), and one end of the connecting pipe (503) is connected to an air intake valve (504) via a threaded groove.

4. A petrochemical environmentally friendly sewage treatment device according to claim 1, Features: A first through hole (11) is formed through one end of the partition plate (8), and a second through hole (12) is formed between the oil separation cavity (2) and the air flotation cavity (3).

5. A petrochemical environmentally friendly sewage treatment device according to claim 1, Features: The two ends of the oil separation chamber (2) located outside the box body (1) are respectively connected to a first sewage valve (15) and a second sewage valve (16) through pipelines.

6. A petrochemical environmentally friendly sewage treatment device according to claim 1, Features: One end of the box body (1) is connected to a second water inlet pipe (13) via a flange, and the other end of the box body (1) is connected to a second water outlet pipe (14) via a flange.

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