Sewage oil removal equipment with air flotation coalescence function

Abstract

The utility model relates to the technical field of sewage oil removal equipment, in particular to sewage oil removal equipment with an air flotation coalescence function, which is characterized in that oil stains in sewage are carried upwards in a nitrogen flowing process, so that the oil stain separation effect and the oil stain separation efficiency are improved; comprising a tank body, an inlet pipe and a first discharge pipe, the inlet pipe is communicated with the left end of the tank body, and the first discharge pipe is communicated with the right end of the tank body; the second discharge pipe is communicated with the bottom end of the tank body, the partition plate is mounted at the lower part of the inner side wall of the tank body, the coalescence packing layer is mounted at the top end of the partition plate, and the air flotation device is communicated with the interior of the tank body and is used for blowing nitrogen into the tank body.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage oil removal equipment, in particular to sewage oil removal equipment with air flotation and coalescence functions. Background Art

[0002] In industrial production, petrochemical, oil field development and other industries, if the oily wastewater is directly discharged without effective treatment, it will not only pollute the environment, but also cause irreversible damage to the ecosystem. Therefore, it is particularly important to develop an efficient and environmentally friendly wastewater oil removal equipment.

[0003] For example, in the patent with the prior art authorization announcement number CN208776342U, the utility model relates to a hot air flotation oily wastewater degreasing device, which belongs to the field of petrochemical technology. The utility model mainly includes an oil tank, a separation tank and a water tank, the oil tank is arranged on the left side of the base, the separation tank is connected to the right side of the oil tank, the oil tank and the separation tank are connected through a dirty oil pipeline, an air flotation device is arranged at the bottom of the separation tank, the air flotation device is connected to the fan on the left side, an electric heating device is arranged at the connection between the fan and the air flotation device, an oily wastewater inlet is arranged on the right side of the air flotation device, the oily wastewater inlet is connected to the oily wastewater pipeline inside the base, the separation tank is on the right side of the water tank, and a drainage pipeline is arranged between the water tank and the separation tank.

[0004] However, it was found during the use of the degreaser that the degreaser had a poor effect on separating oil stains and low efficiency, which reduced the convenience of use. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a sewage oil removal equipment with flotation and coalescence function, which can carry the oil in the sewage upward during the flow of nitrogen to improve the oil separation effect and separation efficiency.

[0006] The utility model discloses a sewage oil removal equipment with air flotation and coalescence function, comprising a tank body, an inlet pipe and a first discharge pipe, wherein the inlet pipe is connected and arranged at the left end of the tank body, and the first discharge pipe is connected and arranged at the right end of the tank body; the utility model also comprises an air flotation device, a second discharge pipe, a partition and a coalescence filler layer, wherein the second discharge pipe is connected and arranged at the bottom end of the tank body, the partition is installed at the lower part of the inner wall of the tank body, the coalescence filler layer is installed at the top of the partition, the air flotation device is connected with the tank body, and the air flotation device is used to blow nitrogen into the tank body; the sewage is transported to the left part of the tank body through the inlet pipe, and then The sewage overflows into the partition, where it is continuously stored and the liquid level rises. At the same time, nitrogen is blown into the sewage in the partition through the flotation device. The nitrogen flows from the bottom to the top in the sewage. During the flow of nitrogen, the oil in the sewage is carried upward, and the oil in the sewage is agglomerated through the agglomeration filler layer, so that the agglomerated oil flows horizontally to the right to the right part of the tank body. After that, the oil is discharged to the outside through the first discharge pipe, and the sewage in the lower part of the partition is discharged through the second discharge pipe, thereby realizing the separation of oil and sewage and improving the oil separation effect and efficiency.

[0007] Preferably, the flotation device includes a distribution pipe, multiple groups of nozzles, a fan, a first delivery pipe, a second delivery pipe and a storage tank. The distribution pipe is installed at the lower part of the inner wall of the partition, the multiple groups of nozzles are connected and arranged on the distribution pipe, the fan output end is connected to the first delivery pipe, the first delivery pipe output end is connected to the distribution pipe, the fan input end is connected to the second delivery pipe, the second delivery pipe input end is connected to the storage tank, the storage tank is installed on the outer wall of the tank body, and the storage tank is connected to the tank body; the fan is turned on to extract nitrogen in the storage tank through the second delivery pipe, the extracted nitrogen is transported to the inside of the distribution pipe through the first delivery pipe, and then the nitrogen is blown into the sewage in the partition through the multiple groups of nozzles, the nitrogen forms tiny bubbles in the sewage, so that the bubbles carry the oil upward, improve the separation effect of oil and sewage, and improve the separation efficiency, and then the nitrogen in the tank body flows back to the storage tank, so as to realize the circulation and transportation of nitrogen.

[0008] Preferably, it also includes a first transparent tube, two groups of first liquid level sensors and a first valve, the first transparent tube is installed on the outer wall of the tank body, and the first transparent tube is communicated with the inside of the partition, the two groups of first liquid level sensors are respectively installed on the upper and lower parts of the outer wall of the first transparent tube, and the first valve is connected and arranged on the second discharge pipe; the sewage in the partition flows into the first transparent tube, and the liquid level height in the first transparent tube is detected by the two groups of first liquid level sensors, thereby improving the convenience of detecting the liquid level height in the partition, and controlling the first valve by the liquid level height to improve the convenience of controlling the sewage discharge flow in the partition, and when the liquid level is lowered, the fan is controlled to stop running by the linkage switch to improve the protection effect of the fan.

[0009] Preferably, it also includes a second transparent tube, two groups of second liquid level sensors and a second valve. The second transparent tube is installed on the outer side wall of the tank body, and the second transparent tube is connected to the right inner part of the tank body. The two groups of second liquid level sensors are respectively installed at the upper and lower parts of the second transparent tube, and the second valve is connected and arranged on the first discharge pipe. The oil in the right part of the tank body flows into the second transparent tube, and the liquid level height in the second transparent tube is detected by the two groups of second liquid level sensors, thereby improving the convenience of detecting the oil height in the right part of the tank body. The second valve is controlled by the oil liquid level height, thereby improving the convenience of controlling the oil discharge flow rate.

[0010] Preferably, it also includes an inspection port, which is connected to the top of the tank body; by providing the inspection port, the convenience of inspection and maintenance in the tank body is improved.

[0011] Compared with the prior art, the utility model has the following beneficial effects: sewage is transported to the left part of the tank body through the inlet pipe, and then the sewage overflows into the partition, the sewage is continuously stored in the partition and the liquid level is increased, and at the same time, nitrogen is blown to the sewage in the partition through the flotation device, and the nitrogen flows from the bottom to the top in the sewage, and the oil in the sewage is carried upward during the flow of nitrogen, and the oil in the sewage is agglomerated through the agglomeration filler layer, so that the agglomerated oil flows horizontally to the right to the right part of the tank body, and then the oil is discharged to the outside through the first discharge pipe, and the sewage in the lower part of the partition is discharged through the second discharge pipe, thereby realizing the separation of oil and sewage, and improving the oil separation effect and separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the axonometric structure of the connection between the tank body and the storage tank, etc.;

[0014] Figure 3 It is a schematic diagram of the axonometric local structure of the connection between the partition and the coalescing packing layer;

[0015] Figure 4 It is a schematic diagram of the axonometric structure of the connection between the tank body and the inspection port, etc.;

[0016] Figure 5 It is an axonometric partial structural diagram of the connection between the second transparent tube and the second liquid level sensor, etc.

[0017] Markings in the attached drawings: 1. tank body; 2. inlet pipe; 3. first discharge pipe; 4. second discharge pipe; 5. partition; 6. agglomerated packing layer; 7. distribution pipe; 8. nozzle; 9. fan; 10. first delivery pipe; 11. second delivery pipe; 12. storage tank; 13. first transparent tube; 14. first liquid level sensor; 15. first valve; 16. second transparent tube; 17. second liquid level sensor; 18. second valve; 19. inspection port. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0019] Example 1

[0020] like Figures 1 to 5 As shown, the utility model is a sewage oil removal equipment with air flotation and coalescence function, including a tank body 1, an inlet pipe 2 and a first discharge pipe 3, the inlet pipe 2 is connected and arranged at the left end of the tank body 1, and the first discharge pipe 3 is connected and arranged at the right end of the tank body 1; it also includes an air flotation device, a second discharge pipe 4, a partition 5 and a coalescence packing layer 6, the second discharge pipe 4 is connected and arranged at the bottom end of the tank body 1, the partition 5 is installed at the lower part of the inner wall of the tank body 1, and the coalescence packing layer 6 is installed at the top of the partition 5, the air flotation device is connected with the tank body 1, and the air flotation device is used to blow nitrogen into the tank body 1;

[0021] like Figure 1 and Figure 2 As shown, the air flotation device includes a distribution pipe 7, multiple groups of nozzles 8, a fan 9, a first delivery pipe 10, a second delivery pipe 11 and a storage tank 12. The distribution pipe 7 is installed at the lower part of the inner wall of the partition 5, and the multiple groups of nozzles 8 are connected and arranged on the distribution pipe 7. The output end of the fan 9 is connected to the first delivery pipe 10, and the output end of the first delivery pipe 10 is connected to the distribution pipe 7. The input end of the fan 9 is connected to the second delivery pipe 11, and the input end of the second delivery pipe 11 is connected to the storage tank 12. The storage tank 12 is installed on the outer wall of the tank body 1, and the storage tank 12 is connected to the inside of the tank body 1;

[0022] In this embodiment, sewage is transported to the left part of the tank body 1 through the inlet pipe 2, and then the sewage overflows into the partition 5. The sewage is continuously stored in the partition 5 and the liquid level rises. At the same time, nitrogen is blown to the sewage in the partition 5 through the flotation device. The nitrogen flows from the bottom to the top in the sewage. During the flow of nitrogen, the oil in the sewage is carried upward, and the oil in the sewage is agglomerated through the agglomeration filler layer 6, so that the agglomerated oil flows horizontally to the right to the right part of the tank body 1. Then the oil is discharged to the outside through the first discharge pipe 3, and the sewage in the lower part of the partition 5 is discharged through the second discharge pipe 4, thereby realizing the separation of oil and sewage, and improving the oil separation effect and separation efficiency.

[0023] Example 2

[0024] On the basis of Example 1, Figure 1 and Figure 2As shown, the utility model is a sewage oil removal equipment with air flotation and coalescence function, which also includes a first transparent tube 13, two groups of first liquid level sensors 14 and a first valve 15. The first transparent tube 13 is installed on the outer wall of the tank body 1, and the first transparent tube 13 is connected with the partition 5. The two groups of first liquid level sensors 14 are respectively installed on the upper and lower parts of the outer wall of the first transparent tube 13, and the first valve 15 is connected and arranged on the second discharge pipe 4;

[0025] like Figure 1 As shown, it also includes a second transparent tube 16, two sets of second liquid level sensors 17 and a second valve 18. The second transparent tube 16 is installed on the outer wall of the tank body 1, and the second transparent tube 16 is connected to the right part of the tank body 1. The two sets of second liquid level sensors 17 are respectively installed at the upper and lower parts of the second transparent tube 16. The second valve 18 is connected and arranged on the first discharge pipe 3.

[0026] like Figure 1 As shown, it also includes an inspection port 19, which is connected to the top of the tank body 1;

[0027] In this embodiment, the blower 9 is turned on to extract nitrogen in the storage tank 12 through the second delivery pipe 11, and the extracted nitrogen is delivered to the inside of the distribution pipe 7 through the first delivery pipe 10, and then the nitrogen is blown into the sewage in the partition 5 through multiple groups of nozzles 8, and the nitrogen forms tiny bubbles in the sewage, so that the bubbles carry the oil upward, thereby improving the separation effect of the oil and sewage, and improving the separation efficiency. Then the nitrogen in the tank body 1 flows back to the storage tank 12, thereby realizing the circulation and transportation of nitrogen, and the sewage in the partition 5 flows into the first transparent tube 13, and the liquid level height in the first transparent tube 13 is detected by two groups of first liquid level sensors 14, thereby improving the convenience of detecting the liquid level height in the partition 5, and the first valve 15 is controlled by the liquid level height, thereby improving the convenience of controlling the discharge flow of sewage in the partition 5, and when the liquid level is lowered, the blower 9 is controlled to stop running by the linkage switch, thereby improving the protection effect of the blower 9.

[0028] The utility model discloses a sewage oil removal equipment with air flotation and coalescence function. When the sewage is working, the sewage is transported to the left part of the tank body 1 through the inlet pipe 2, and then the sewage overflows into the partition 5. The sewage is continuously stored in the partition 5 and the liquid level is increased. At the same time, nitrogen is blown to the sewage in the partition 5 through the air flotation device. The nitrogen flows from bottom to top in the sewage. The oil in the sewage is carried upward during the flow of the nitrogen. The oil in the sewage is coalesced through the coalescence filler layer 6, so that the coalesced oil flows horizontally to the right to the right part of the tank body 1. Then the oil is discharged to the outside through the first discharge pipe 3, and the sewage in the lower part of the partition 5 is discharged through the second discharge pipe 4, thereby realizing the separation of the oil and sewage.

[0029] The utility model is a sewage oil removal equipment with flotation and flocculation function. The flocculation packing layer 6, the fan 9, the first liquid level sensor 14 and the second liquid level sensor 17 are purchased on the market. The technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative labor.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sewage oil removal equipment with air flotation and coalescence function, comprising a tank body (1), an inlet pipe (2) and a first outlet pipe (3), wherein the inlet pipe (2) is connected and arranged at the left end of the tank body (1), and the first outlet pipe (3) is connected and arranged at the right end of the tank body (1); characterized in that: It also comprises an air flotation device, a second discharge pipe (4), a partition (5) and a coalescing filler layer (6); the second discharge pipe (4) is arranged in communication with the bottom end of the tank body (1); the partition (5) is installed at the lower part of the inner wall of the tank body (1); the coalescing filler layer (6) is installed at the top of the partition (5); the air flotation device is in communication with the inside of the tank body (1); and the air flotation device is used to blow nitrogen into the tank body (1).

2. The sewage oil removal equipment with air flotation and coalescence function as claimed in claim 1, characterized in that: The air flotation device comprises a distribution pipe (7), a plurality of groups of nozzles (8), a fan (9), a first delivery pipe (10), a second delivery pipe (11) and a storage tank (12); the distribution pipe (7) is mounted on the lower part of the inner wall of the partition (5); the plurality of groups of nozzles (8) are all connected and arranged on the distribution pipe (7); the output end of the fan (9) is connected to the first delivery pipe (10); the output end of the first delivery pipe (10) is connected to the distribution pipe (7); the input end of the fan (9) is connected to the second delivery pipe (11); the input end of the second delivery pipe (11) is connected to the storage tank (12); the storage tank (12) is mounted on the outer wall of the tank body (1); and the storage tank (12) is connected to the inside of the tank body (1).

3. The sewage oil removal equipment with air flotation and coalescence function as claimed in claim 1, characterized in that: The invention also comprises a first transparent tube (13), two groups of first liquid level sensors (14) and a first valve (15); the first transparent tube (13) is mounted on the outer wall of the tank body (1), and the first transparent tube (13) is connected to the interior of the partition (5); the two groups of first liquid level sensors (14) are respectively mounted on the upper and lower parts of the outer wall of the first transparent tube (13); and the first valve (15) is arranged on the second discharge pipe (4) in communication.

4. The sewage oil removal equipment with air flotation and coalescence function as claimed in claim 1, characterized in that: The invention also comprises a second transparent tube (16), two sets of second liquid level sensors (17) and a second valve (18); the second transparent tube (16) is mounted on the outer wall of the tank body (1), and the second transparent tube (16) is connected to the right inner part of the tank body (1); the two sets of second liquid level sensors (17) are respectively mounted on the upper and lower parts of the second transparent tube (16); and the second valve (18) is connected and arranged on the first discharge pipe (3).

5. The sewage oil removal equipment with air flotation and coalescence function as claimed in claim 1, characterized in that: It also includes an inspection port (19), which is arranged in communication with the top of the tank body (1).

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