A ship oil-water separation device

Abstract

The utility model relates to the field of ship equipment, and disclose a ship oil -water separating device, the utility model discloses an aeration tank, and the inside top of aeration tank has filter screen box and oil receiving tank, and filter screen box and oil receiving tank distribute left and right, and the left side outer wall of aeration tank is fixedly connected water inlet pipe, and the right end of water inlet pipe extends to the top of filter screen box, and the inside middle top of aeration tank has two pivot, and two pivot distribute left and right, and the front and rear end of pivot is rotatably connected with the front and rear side inner wall of aeration tank, and the front and rear end of pivot all penetrates out aeration tank outer wall, and the rear wall of aeration tank is fixedly installed motor, and the output shaft of motor is fixedly connected with the rear end of left pivot. The utility model can effectively gather the oil in oil -water mixture to the upper layer through the preliminary filtration of filter screen box and the aeration effect of aeration pipe, and then combines the adsorption effect of oil absorption cotton, realizes the efficient separation of oil and water, and improves the effect of oil -water separation.

Description

Technical Field

[0001] This utility model relates to the field of marine equipment, specifically a marine oil-water separation device. Background Technology

[0002] Ships generate a large amount of oily wastewater during operation. Direct discharge of such wastewater would cause serious pollution to the marine environment. Therefore, ships must be equipped with oil-water separators that meet IMO standards.

[0003] Separation is achieved by utilizing the density difference between oil and water, which is suitable for treating wastewater with high oil content, but it is difficult to handle fine oil droplets or emulsified oil. Centrifugal force accelerates oil-water separation, which is suitable for treating mixtures with high viscosity or high oil content, but the equipment is complex and energy consumption is high. Membrane filtration using special materials is suitable for treating fine oil droplets or emulsified oil, but it is rarely used in the shipbuilding industry, and the membrane is prone to clogging and has a high cost. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a ship oil-water separation device.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A marine oil-water separation device includes an aeration tank; the inner top of the aeration tank has a filter screen box and an oil receiving tank, which are distributed left and right. The top of the left side wall of the oil receiving tank is inclined to the left and has an opening. Slide plates are fixedly connected to the front and rear sides of the top of the filter screen box and the oil receiving tank. The slide plates are slidably engaged with the upper part of the aeration tank. A handle is fixedly connected to the top of the slide plates. An inlet pipe is fixedly connected to the left outer wall of the aeration tank, and the right end of the inlet pipe extends to the top of the filter screen box. Two rotating shafts are located at the top of the middle inner part of the aeration tank, with a gap between them. The front and rear ends of the rotating shafts are rotatably connected to the front and rear inner walls of the aeration tank, and both the front and rear ends of the rotating shafts extend through the outer wall of the aeration tank. A motor is fixedly installed on the rear side wall. The output shaft of the motor is fixedly connected to the rear end of the left rotating shaft. Pulleys are fixedly sleeved on the outer walls of the front ends of both rotating shafts. A belt is sleeved between the outer walls of the two pulleys. Oil-absorbing cotton is sleeved on the outer walls of both rotating shafts. A water outlet pipe is fixedly connected to the bottom of the right side wall of the aeration tank. A valve is installed on the water outlet pipe. An air compressor is located on the front side of the aeration tank. The air outlet end of the air compressor is fixedly connected to a connecting pipe. The connecting pipe is a T-shaped pipe. Two air supply pipes are fixedly connected to the front side wall of the aeration tank. The two air supply pipes are distributed on the left and right. The two ends of the connecting pipe away from the air compressor are fixedly connected to one end of the air supply pipe. The other end of the air supply pipe extends along the side wall of the aeration tank to the bottom of the inner side of the aeration tank. The other ends of the two air supply pipes are fixedly connected to the aeration pipe.

[0007] There is a temporary storage box on the left side of the aeration tank. There is a water pump between the temporary storage box and the aeration tank. The water inlet of the water pump is fixedly connected to the bottom of the temporary storage box, and the water outlet of the water pump is fixedly connected to the left end of the water inlet pipe. A submersible pump is installed in the oil tank. The water outlet of the submersible pump is fixedly connected to one end of the return water pipe, and the other end of the return water pipe extends into the temporary storage box.

[0008] The left side of the rotating shaft has an air blowing pipe, which is fixedly connected to the inside of the aeration tank. The front end of the air blowing pipe is connected to the air supply pipe on the front side. Several air blowing holes are opened on the right side of the air blowing pipe, and the air blowing holes are evenly distributed front and back.

[0009] The beneficial effects of this utility model are:

[0010] This invention effectively concentrates oil in an oil-water mixture to the upper layer through the preliminary filtration of the filter screen box and the aeration of the aeration pipe. Combined with the adsorption of the oil-absorbing cotton, it achieves efficient oil-water separation and improves the oil-water separation effect.

[0011] The system includes a temporary storage tank, a water pump, an oil receiving tank, and a submersible pump. A small amount of oil-water mixture entering the oil receiving tank is transported back to the temporary storage tank for recycling, which further improves the thoroughness of oil-water separation and reduces oil waste and environmental pollution. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 yes Figure 1 Schematic diagram of the structure from the right side;

[0014] Figure 3 yes Figure 1 Top view;

[0015] Figure 4 yes Figure 1 The left view;

[0016] Figure 5 yes Figure 4 Cross-sectional view at point AA.

[0017] The specific reference numerals in all the attached drawings are as follows: 1. Aeration tank; 2. Filter screen box; 3. Oil receiving tank; 4. Slide plate; 5. Handle; 6. Inlet pipe; 7. Oil-absorbing cotton; 8. Shaft; 9. Motor; 10. Pulley; 11. Belt; 12. Outlet pipe; 13. Valve; 14. Air compressor; 15. Connecting pipe; 16. Air supply pipe; 17. Aeration pipe; 18. Air blowing pipe; 19. Air blowing hole; 20. Temporary storage box; 21. Water pump one; 22. Submersible pump; 23. Return water pipe. Detailed Implementation

[0018] like Figure 1-5As shown: A marine oil-water separation device includes an aeration tank 1; the inner top of the aeration tank 1 has a filter screen box 2 and an oil receiving tank 3, which are distributed left and right. The top of the left side wall of the oil receiving tank 3 is inclined to the left and has an opening. Slide plates 4 are fixedly connected to the front and rear sides of the top of the filter screen box 2 and the oil receiving tank 3. The slide plates 4 are slidably engaged with the upper part of the aeration tank 1. A handle 5 is fixedly connected to the top of the slide plates 4. A water inlet pipe 6 is fixedly connected to the left outer wall of the aeration tank 1. The right end of the water inlet pipe 6 extends to the top of the filter screen box 2. Two rotating shafts 8 are located at the top of the middle inner part of the aeration tank 1. There is a gap between the two rotating shafts 8. The front and rear ends of the rotating shafts 8 are rotatably connected to the front and rear inner walls of the aeration tank 1. The front and rear ends of the rotating shafts 8 both penetrate through the outer wall of the aeration tank 1. A motor is fixedly installed on the rear wall of the aeration tank 1. 9. The output shaft of motor 9 is fixedly connected to the rear end of the left rotating shaft 8. The outer walls of the front ends of the two rotating shafts 8 are fixedly fitted with pulleys 10. The outer walls of the two pulleys 10 are fitted with belts 11. The outer walls of the two rotating shafts 8 are fitted with oil-absorbing cotton 7. The bottom of the right side wall of the aeration tank 1 is fixedly connected to the outlet pipe 12. The outlet pipe 12 is equipped with a valve 13. The front side of the aeration tank 1 has an air compressor 14. The air outlet end of the air compressor 14 is fixedly connected to the connecting pipe 15. The connecting pipe 15 is a three-way pipe. The front side wall of the aeration tank 1 is fixedly connected to two air supply pipes 16. The two air supply pipes 16 are distributed on the left and right. The two ends of the connecting pipe 15 away from the air compressor 14 are fixedly connected to one end of the air supply pipe 16 respectively. The other end of the air supply pipe 16 extends along the side wall of the aeration tank 1 to the bottom of the inner side of the aeration tank 1. The other ends of the two air supply pipes 16 are fixedly connected to the aeration pipe 17.

[0019] A temporary storage tank 20 is located on the left side of the aeration tank 1. A water pump 21 is located between the temporary storage tank 20 and the aeration tank 1. The inlet end of the water pump 21 is fixedly connected to the bottom of the temporary storage tank 20, and the outlet end of the water pump 21 is fixedly connected to the left end of the inlet pipe 6. A submersible pump 22 is installed in the oil tank 3. The outlet end of the submersible pump 22 is fixedly connected to one end of the return water pipe 23, and the other end of the return water pipe 23 extends into the temporary storage tank 20.

[0020] The left side of the rotating shaft 8 has an air blowing pipe 18, which is fixedly connected to the inside of the aeration tank 1. The front end of the air blowing pipe 18 is connected to the air supply pipe 16 on the front side. Several air blowing holes 19 are opened on the right side of the air blowing pipe 18, and the air blowing holes 19 are evenly distributed front and back.

[0021] The oil-water mixture first enters the temporary storage tank 20. Under the action of the water pump 21, the oil-water mixture is transported to the aeration tank 1 through the water inlet pipe 6 and flows directly to the top of the filter screen box 2. The filter screen box 2 performs preliminary filtration of the oil-water mixture, trapping larger impurities. The filtered oil-water mixture falls to the bottom of the aeration tank 1.

[0022] When the air compressor 14 starts, the compressed air generated is split into two air supply pipes 16 through the connecting pipe 15, and then transported by the air supply pipes 16 to the aeration pipe 17 at the bottom of the inner side of the aeration tank 1. The aeration pipe 17 releases bubbles, causing the oil-water mixture in the aeration tank 1 to churn violently. Since the density of oil is less than that of water, the oil gradually gathers to the upper layer under the action of the bubbles.

[0023] When motor 9 starts, it drives the left rotating shaft 8 to rotate. The left rotating shaft 8 drives the right rotating shaft 8 to rotate synchronously through pulley 10 and belt 11. The oil-absorbing cotton 7 sleeved on the outer wall of the two rotating shafts 8 rotates accordingly. During the rotation, the oil-absorbing cotton 7 absorbs the oil accumulated on the upper layer of the aeration tank 1.

[0024] After the oil is absorbed by the oil-absorbing cotton 7, a small amount of oil will still enter the oil receiving tank 3. The submersible pump 22 in the oil receiving tank 3 will start and transport the oil-water mixture in the oil receiving tank 3 back to the temporary storage tank 20 through the return water pipe 23, so as to realize the recycling of the oil-water mixture.

[0025] The front air supply pipe 16 also delivers some compressed air to the air blowing pipe 18. Several air blowing holes 19 on the right side of the air blowing pipe 18 blow out airflow to sweep the liquid surface and blow the oil on the surface toward the oil-absorbing cotton 7, thereby improving the oil absorption efficiency of the oil-absorbing cotton 7.

[0026] After the water in the aeration tank 1 has been treated, open the valve 13 on the outlet pipe 12 to discharge the treated water.

[0027] This utility model only protects the mechanical parts; the functions implemented by the software control part are not within the scope of protection of this utility model.

Claims

1. A ship oil-water separation device, comprising an aeration tank (1), characterized in that, The aeration tank (1) has a filter screen box (2) and an oil receiving box (3) on the top inner side. The filter screen box (2) and the oil receiving box (3) are distributed on the left and right sides. The top of the left side wall of the oil receiving box (3) is tilted to the left and has an opening. The top front and rear sides of the filter screen box (2) and the oil receiving box (3) are fixedly connected to the sliding plate (4). The sliding plate (4) is slidably engaged with the upper part of the aeration tank (1). The top of the sliding plate (4) is fixedly connected to the handle (5). The left outer wall of the aeration tank (1) is fixedly connected to the inlet pipe (6), and the right end of the inlet pipe (6) extends to the top of the filter screen box (2). The top of the inner middle part of the aeration tank (1) has two rotating shafts (8), with a gap between the two rotating shafts (8). The front and rear ends of the rotating shafts (8) are rotatably connected to the front and rear inner walls of the aeration tank (1). The front and rear ends of the rotating shafts (8) both penetrate through the outer wall of the aeration tank (1). The rear wall of the aeration tank (1) is fixedly installed with a motor (9). The output shaft of the motor (9) The rear end of the left rotating shaft (8) is fixedly connected to the front end of both rotating shafts (8), and pulleys (10) are fixedly sleeved on the outer walls of the front ends of both rotating shafts (8). A belt (11) is sleeved between the outer walls of the two pulleys (10). Oil-absorbing cotton (7) is sleeved on the outer walls of both rotating shafts (8). The bottom of the right side wall of the aeration tank (1) is fixedly connected to the outlet pipe (12), and a valve (13) is installed on the outlet pipe (12). An air compressor (14) is located on the front side of the aeration tank (1), and the air outlet end of the air compressor (14) is fixed. Connecting pipe (15) is a three-way pipe. Two air supply pipes (16) are fixedly connected to the front side wall of the aeration tank (1). The two air supply pipes (16) are distributed on the left and right. The two ends of the connecting pipe (15) away from the air compressor (14) are fixedly connected to one end of the air supply pipe (16). The other end of the air supply pipe (16) extends along the side wall of the aeration tank (1) to the bottom of the inner side of the aeration tank (1). The other ends of the two air supply pipes (16) are fixedly connected to the aeration pipe (17).

2. The ship oil-water separator according to claim 1, characterized in that, A temporary storage box (20) is located on the left side of the aeration tank (1). A water pump (21) is located between the temporary storage box (20) and the aeration tank (1). The inlet end of the water pump (21) is fixedly connected to the bottom of the temporary storage box (20). The outlet end of the water pump (21) is fixedly connected to the left end of the inlet pipe (6). A submersible pump (22) is installed in the oil tank (3). The outlet end of the submersible pump (22) is fixedly connected to one end of the return water pipe (23). The other end of the return water pipe (23) extends into the temporary storage box (20).

3. The ship oil-water separator according to claim 1, characterized in that, The left side of the rotating shaft (8) has an air blowing pipe (18), which is fixedly connected to the inside of the aeration tank (1). The front end of the air blowing pipe (18) is connected to the air supply pipe (16) on the front side. Several air blowing holes (19) are opened on the right side of the air blowing pipe (18), and the air blowing holes (19) are evenly distributed in front and behind.

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