Fiber coalescence coupling adsorption degradation oil removal device

Abstract

The utility model belongs to the technical field of oil-water mixture treatment, and particularly relates to a fiber coalescence coupling adsorption degradation oil removal device which comprises a rotational flow unit, an emulsification stabilization unit, a coalescence unit and an adsorption degradation unit which are connected in sequence, the liquid collecting device is connected with the rotational flow unit, the emulsifying and stabilizing unit and the coalescence unit; and the rotational flow unit is connected to an oil-water mixture extracted from the outside. The device solves the problems of secondary pollution, incomplete oil removal, poor adaptability and the like of a conventional oil removal process / equipment by adding chemical agents, combines physical oil removal methods such as cyclone separation, homogeneous emulsification, fiber coalescence, adsorption filtration and the like, is coupled with a chemical oxidative degradation technology, realizes staged treatment and thorough purification of free oil, emulsified oil and residual oil in an oil-water mixture, and improves the oil removal efficiency. Oil substances in petroleum-polluted water bodies such as oilfield produced water and oil refining sewage can be dynamically, continuously or statically and intermittently separated and recycled, and water resources are helped to be recycled up to the standard or discharged in an environment-friendly manner.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil-water mixture treatment, and in particular relates to a fiber agglomeration coupling adsorption degradation oil removal device. Background Art

[0002] A large amount of oil-water mixture will be generated during the oil extraction, treatment and processing. Before reuse or discharge, oil removal treatment must be carried out to meet the process and environmental protection requirements. For example, oil field produced water and refinery oily wastewater contain a large amount of emulsified oil, which is difficult to separate and recover, resulting in waste of resources, affecting water resource utilization and environmental protection, and causing certain economic losses and negative impacts on related enterprises. At present, the oil removal methods commonly used in oil fields and refineries include: chemical demulsification, gravity sedimentation (inclined plate, cyclone, flotation, oil separation), oleophilic and hydrophobic medium agglomeration, and filler filtration, among which gravity sedimentation separation after adding demulsifier is the mainstream, which often has problems such as large floor space, many types of reagents and large dosage, poor properties of recovered oil products, and easy secondary pollution. Therefore, the use of cleaner physical deoiling methods is the general trend, and it is necessary to couple multiple methods / equipment according to the characteristics of water quality and oil content to achieve graded and enhanced deoiling effect.

[0003] ZL 201822006917.9 uses production separation (oil, water and gas three-phase) combined with coagulation separation and enhanced sedimentation (multi-layer oleophilic and hydrophobic corrugated plates) to treat oily wastewater; ZL201821265063.X uses sedimentation (free waste oil) + filtration (large particle impurities) + coagulation separation (fiber coagulation + corrugated plate enhanced sedimentation) + coagulation separation (fiber coagulation + coarse granulation coagulation) to deeply remove oil from refinery wastewater; ZL 202322234351.6 uses micro-nano bubble enhanced two-stage coalescence + organic (cyclohexane, kerosene or toluene) extraction and separation to achieve coupled oil removal; ZL202121694704.5 uses a three-phase separation tank (centrifugal cyclone + coalescence corrugated plate + coarse-grained stainless steel spiral mesh) and an integrated flotation sedimentation machine (chemical demulsification + dissolved air flotation + filtration adsorption) to achieve multi-stage oil removal; Patent 202311119613.2 (application number) uses super-oleophilic and hydrophobic plates, mesh fibers, and composite membranes made of polymer organic materials as multi-stage oil removal elements to quickly remove oil from oily ammonia water; Patent 202211507484.X (application number) uses magnetic coalescence fillers combined with electrocyclone for adsorption and oil removal; ZL202011392254.4 uses a multi-stage coupling method of cyclone + multi-media filtration + electric-dielectric synergistic enhanced demulsification + coalescence to demulsify and remove oil from O / W emulsions.

[0004] The coalescence oil removal process can combine the oleophilic and hydrophobic properties of the material, and with the help of interception, collision, migration and other effects, the small oil droplets of emulsified dispersion can be rapidly enlarged, and then rely on gravity to achieve oil-water separation. It has a high separation efficiency and is easy to realize modularization and skid-mounting, and has great potential for field application. However, coalescence oil removal also has treatment limits and cannot achieve complete oil removal. The oil in the discharged wastewater will cause eutrophication of the water body, resulting in deterioration of water quality, which is not conducive to ecological restoration. Therefore, it is necessary to finely remove the oil from the discharged wastewater. Porous / large specific surface area adsorption materials have a good removal effect on trace oil droplets in water. If they can be supplemented with enhanced degradation, they can better adapt to the oil removal needs of different oil-containing water qualities. Summary of the invention

[0005] The utility model aims to address the problems existing in the existing oil-water mixture treatment process / equipment, and in combination with the demand for fine oil removal from discharged wastewater and the trend of physical oil removal, the utility model provides a fiber agglomeration coupled adsorption degradation oil removal device, which combines cyclone separation, homogenization emulsification, two-stage fiber agglomeration separation and adsorption degradation, and successively realizes the separation and recovery of larger oil droplets in free / dispersed state, the transformation of medium-sized emulsified oil droplets into homogenized smaller emulsified oil, the demulsification and agglomeration separation and recovery of emulsified oil, and the adsorption degradation and removal of trace emulsified oil. It can continuously treat the oil-water mixture, stably and efficiently remove oil, and help to recover oil resources and optimize water quality.

[0006] The technical solution of the utility model is:

[0007] A fiber coalescence coupled adsorption degradation oil removal device comprises a cyclone unit, an emulsion stabilization unit, a coalescence unit and an adsorption degradation unit connected in sequence; it also comprises a liquid collecting device connected to the cyclone unit, the emulsion stabilization unit and the coalescence unit; the cyclone unit is connected to an oil-water mixture produced from the outside.

[0008] The cyclone unit comprises a cyclone separator, the upper part of which is provided with an oil-water mixture inlet and a cyclone oil discharge pipe, and the bottom part is provided with a cyclone heavy liquid outlet pipe; the oil-water mixture inlet is connected to the upper part of the cyclone separator in a tangential manner.

[0009] Wherein, the emulsification stabilization unit includes an emulsification chamber and a stabilization chamber separated by a liquid partition plate, and the emulsification chamber is connected to the cyclone heavy liquid outlet pipe; it also includes a connecting pipe for connecting the emulsification chamber and the stabilization chamber; wherein, a stirring device is provided in the emulsification chamber, and the stirring device includes a stirring motor, a stirring rod and a stirring paddle connected in sequence; the bottoms of the emulsification chamber and the stabilization chamber are both connected to a liquid collecting device; the height of the liquid partition plate is greater than the liquid level height of the emulsification chamber and the stabilization chamber; one end of the connecting pipe is arranged at the bottom of the emulsification chamber, and the other end is arranged at the bottom of the stabilization chamber, 3 to 6 cm away from the bottom of the emulsification chamber and the bottom of the stabilization chamber; the connecting pipe is a siphon connecting pipe.

[0010] Wherein, the coalescing unit comprises a coalescing separator, the inlet end of the coalescing separator is a coalescing separator liquid inlet pipe, and the coalescing separator liquid inlet pipe is connected to the stabilization chamber; the outlet end of the coalescing separator comprises a light oil sample outlet end and a heavy water sample outlet end; the light oil sample outlet end is connected to the liquid collecting device through a coalescing oil drain pipe; the heavy water sample outlet end is connected to the adsorption degradation unit; a primary coalescing filler filling area and a secondary coalescing filler filling area are sequentially arranged in the coalescing separator along the direction from the inlet end to the outlet end;

[0011] Among them, the filler in the first-level coalescing filler filling area is one of polytetrafluoroethylene fiber, nylon 66 fiber, and polyester fiber, and the filler in the second-level coalescing filler filling area is absorbent cotton fiber. The thickness of the first-level coalescing filler filling area and the thickness of the second-level coalescing filler filling area are both 1 / 8~1 / 4 of the length of the coalescing separator.

[0012] Among them, the adsorption degradation unit includes an adsorption degradation device, the inlet end of the adsorption degradation device is the adsorption degradation device liquid inlet pipe, which is connected to the heavy water sample outlet end, the outlet end of the adsorption degradation device is the water outlet, and an adsorption degradation filler filling layer is provided in the adsorption degradation device; the adsorption degradation filler in the adsorption degradation filler filling layer is one of the composite particles such as Fe / activated carbon, Fe / biomass charcoal, Fe / porous carbon slag, Fe / nanocarbon material, etc., and its thickness is 1 / 3~1 / 2 of the height of the adsorption degradation device, and the water outlet is also provided with a water outlet ball valve.

[0013] Wherein, the liquid collecting device includes a liquid collecting box and an oil collecting box; wherein, the liquid collecting box is connected to the bottom of the emulsification chamber through a first liquid discharge pipe; the liquid collecting box is connected to the bottom of the stabilization chamber through a second liquid discharge pipe; the first liquid discharge pipe and the second liquid discharge pipe are both provided with a liquid discharge ball valve; the oil collecting tank is connected to the cyclone separator through a cyclone oil discharge pipe, and is connected to the light oil sample outlet end of the condensation separator through a condensation oil discharge pipe.

[0014] The cyclone unit, emulsion stabilization unit, coalescence unit and adsorption degradation unit are all placed in an integrated box, and the liquid collection tank and oil collection tank are located outside the integrated box; the outer wall and bottom of the integrated box are wrapped with a cooling jacket, and a gap of 3 to 8 cm is provided between the inner wall of the cooling jacket and the outer wall of the integrated box, and cooling water with a temperature of 0 to 10°C is built in the gap; the top of the cooling jacket is not higher than the oil-water mixture inlet; the cooling jacket is also provided with a cooling water inlet and a cooling water outlet arranged diagonally; wherein the cooling water inlet is located at the bottom of the cooling jacket on the side of the oil-water mixture inlet, and the cooling water outlet is located at the top of the cooling jacket on the opposite side;

[0015] The cyclone separator is in the shape of an inverted truncated cone, the top surface of the cyclone separator is 5 to 10 cm higher than the top surface of the integrated box, the diameter ratio of the upper and lower circular surfaces of the inverted truncated cone is 2:1 to 4:1, and its height is 1 / 3 to 1 / 2 of the height of the integrated box;

[0016] The length of the stirring rod extending into the emulsification chamber is 3 / 4 to 4 / 5 of the height of the integrated box, the number of the stirring paddle blades is 2 to 4, and the length of the blades is 1 / 4 to 3 / 10 of the width of the emulsification chamber;

[0017] Among them, the height of the liquid partition plate is 3 / 4~4 / 5 of the height of the integrated box, and the liquid holding height in the emulsification chamber / stabilization chamber is 1 / 2~3 / 4 of the height of the integrated box.

[0018] Among them, a first partition is provided between the cyclone unit and the emulsification stabilization unit, and the cyclone heavy liquid outlet pipe passes through the first partition to connect with the cyclone separator and the emulsification chamber; a second partition is provided between the stabilization chamber and the coalescence unit, and the coalescence separator liquid inlet pipe passes through the second partition to connect with the stabilization chamber and the coalescence separator; a third partition is provided between the coalescence unit and the adsorption degradation unit, and the adsorption degradation device liquid inlet pipe passes through the third partition to connect with the coalescence separator and the adsorption degrader.

[0019] The technical effects of the utility model are:

[0020] The fiber agglomeration coupled adsorption degradation oil removal device provided by the utility model solves the problems of secondary pollution caused by chemical additives in conventional oil removal processes / equipment, incomplete oil removal, poor adaptability, etc. It combines physical oil removal methods such as cyclone separation, homogenization emulsification, fiber agglomeration, adsorption filtration, and couples it with chemical oxidation degradation technology to achieve graded treatment and thorough purification of free oil, emulsified oil, and residual oil in the oil-water mixture. It can dynamically and continuously or statically intermittently separate and recover oil substances in petroleum-contaminated water bodies such as oilfield produced water and refinery wastewater, thereby helping water resources to meet standard reuse or environmentally friendly discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A side view of the utility model.

[0022] Figure 2 A top view of the utility model.

[0023] 1. Oil-water mixture inlet; 2. Integrated box; 3. Cooling jacket; 4. Cooling water inlet; 5. Cyclone separator; 6. Cyclone heavy liquid outlet pipe; 7. First baffle; 8. Stirring motor; 9. Stirring rod; 10. Stirring paddle; 11. Emulsification chamber; 12. Drain ball valve; 13. First drain pipe; 14. Cyclone oil drain pipe; 15. Siphon connecting pipe; 16. Baffle plate; 17. Stabilization chamber; 19. Second drain pipe; 20. Liquid collecting tank; 21. Liquid inlet pipe of coalescing separator; 22. Second partition; 23. Coalescing separator; 24. Primary coalescing filler filling area; 25. Secondary coalescing filler filling area; 26. Coalescing oil drain pipe; 27. Oil collecting tank; 28. Third partition; 29. ​​Liquid inlet pipe of adsorption degrader; 30. Adsorption degrader; 31. Adsorption degradation filler filling layer; 32. Water outlet ball valve; 33. Water outlet; 34. Cooling water outlet. DETAILED DESCRIPTION

[0024] Example 1

[0025] A fiber coalescence coupled adsorption degradation oil removal device comprises a cyclone unit, an emulsion stabilization unit, a coalescence unit and an adsorption degradation unit connected in sequence; it also comprises a liquid collecting device connected to the cyclone unit, the emulsion stabilization unit and the coalescence unit; the cyclone unit is connected to an oil-water mixture produced from the outside.

[0026] The specific implementation process of this embodiment is as follows:

[0027] The oily water sample to be treated enters the cyclone unit. Under the combined action of the cyclone centrifugal force and gravity, the light free oil in the oily water sample moves upward into the liquid collecting device, while the heavy water sample containing emulsified oil enters the emulsification stabilization unit. Under the action of rapid stirring and shearing, the O / W type emulsified oil droplets in the heavy water sample containing emulsified oil become smaller and homogenized to form a homogeneous emulsified oil water sample and stand for buffering; the homogeneous emulsified oil water sample enters the coalescence unit, and the dispersed emulsified oil in the homogeneous emulsified oil water sample is separated from the heavy water sample to form an upper layer of light oil and a lower layer of heavy water sample (containing trace emulsified oil). The upper layer of light oil enters the liquid collecting device, and the lower layer of heavy water sample (containing trace emulsified oil) enters the adsorption and degradation unit, which physically adsorbs and oxidatively degrades the trace emulsified oil, and intercepts the soluble metal ions in the heavy water sample. Finally, the oil-free water sample flows out of the adsorption and degradation unit and enters the subsequent process.

[0028] Example 2

[0029] On the basis of Example 1, it also includes:

[0030] The cyclone unit comprises a cyclone separator 5, the upper part of which is provided with an oil-water mixture inlet 1 and a cyclone oil discharge pipe 14, and the bottom part is provided with a cyclone heavy liquid outlet pipe 6; wherein the oil-water mixture inlet 1 is connected to the upper part of the cyclone separator 5 in a tangential manner.

[0031] Example 3

[0032] On the basis of Example 2, the invention further includes:

[0033] The emulsification stabilization unit includes an emulsification chamber 11 and a stabilization chamber 17 separated by a liquid partition plate 16, and the emulsification chamber 11 is connected to the cyclone heavy liquid outlet pipe 6; it also includes a connecting pipe for connecting the emulsification chamber 11 and the stabilization chamber 17; wherein, a stirring device is provided in the emulsification chamber 11, and the stirring device includes a stirring motor 8, a stirring rod 9 and a stirring paddle 10 connected in sequence; the bottoms of the emulsification chamber 11 and the stabilization chamber 17 are both connected to a liquid collecting device; the height of the liquid partition plate 16 is greater than the liquid level height of the emulsification chamber 11 and the stabilization chamber 17; one end of the connecting pipe is arranged at the bottom of the emulsification chamber 11, and the other end is arranged at the bottom of the stabilization chamber 17, 3 to 6 cm away from the bottom of the emulsification chamber 11 and the bottom of the stabilization chamber 17; the connecting pipe is a siphon connecting pipe 15.

[0034] Example 4

[0035] On the basis of Example 3, the invention further includes:

[0036] The coalescing unit comprises a coalescing separator 23, the inlet end of the coalescing separator 23 is a coalescing separator liquid inlet pipe 21, and the coalescing separator liquid inlet pipe 21 is connected to the stabilization chamber 17; the outlet end of the coalescing separator 23 comprises a light oil sample outlet end and a heavy water sample outlet end; the light oil sample outlet end is connected to the liquid collecting device through a coalescing oil drain pipe 26; the heavy water sample outlet end is connected to the adsorption degradation unit; the coalescing separator 23 is provided with a primary coalescing filler filling area 24 and a secondary coalescing filler filling area 25 in sequence along the direction from the inlet end to the outlet end;

[0037] Among them, the filler in the first-level coalescence filler filling area 24 is one of polytetrafluoroethylene fiber, nylon 66 fiber, and polyester fiber, and the filler in the second-level coalescence filler filling area 25 is absorbent cotton fiber. The thickness of the first-level coalescence filler filling area 24 and the thickness of the second-level coalescence filler filling area 25 are both 1 / 8~1 / 4 of the length of the coalescence separator 23.

[0038] Example 5

[0039] On the basis of Example 4, the invention further comprises:

[0040] The adsorption degradation unit includes an adsorption degradation device 30, the inlet end of the adsorption degradation device 30 is the adsorption degradation device liquid inlet pipe 29, which is connected to the outlet end of the heavy water sample, and the outlet end of the adsorption degradation device 30 is the water outlet 33. An adsorption degradation filler filling layer 31 is provided in the adsorption degradation device 30; the adsorption degradation filler in the adsorption degradation filler filling layer 31 is one of the composite particles such as Fe / activated carbon, Fe / biomass carbon, Fe / porous carbon slag, Fe / nanocarbon material, etc., and its thickness is 1 / 3~1 / 2 of the height of the adsorption degradation device 30, and the water outlet 33 is also provided with a water outlet ball valve 32.

[0041] Example 6

[0042] On the basis of Example 5, the present invention further comprises:

[0043] The liquid collecting device includes a liquid collecting box 20 and an oil collecting box 27; wherein the liquid collecting box 20 is connected to the bottom of the emulsification chamber 11 through a first liquid discharge pipe 13; the liquid collecting box 20 is connected to the bottom of the stabilization chamber 17 through a second liquid discharge pipe 19; the first liquid discharge pipe 13 and the second liquid discharge pipe 19 are both provided with a liquid discharge ball valve 12; the oil collecting box 27 is connected to the cyclone separator 5 through a cyclone oil discharge pipe 14, and is connected to the light oil sample outlet end of the condensation separator 23 through a condensation oil discharge pipe 26.

[0044] Example 7

[0045] On the basis of Example 6, the invention further comprises:

[0046] The cyclone unit, emulsion stabilization unit, coalescence unit and adsorption degradation unit are all placed in an integrated box 2, and the liquid collection box 20 and the oil collection box 27 are located outside the integrated box 2; the outer wall and the bottom of the integrated box 2 are wrapped with a cooling jacket 3, and a gap of 3 to 8 cm is provided between the inner wall of the cooling jacket 3 and the outer wall of the integrated box 2, and cooling water with a temperature of 0 to 10° C. is built into the gap; the top of the cooling jacket 3 is not higher than the oil-water mixture inlet 1; the cooling jacket 3 is also provided with a cooling water inlet 4 and a cooling water outlet 34 arranged diagonally; wherein the cooling water inlet 4 is located at the bottom of the cooling jacket 3 on the side of the oil-water mixture inlet 1, and the cooling water outlet 34 is located at the top of the cooling jacket 3 on the opposite side;

[0047] The cyclone separator 5 is in the shape of an inverted truncated cone, the top surface of the cyclone separator 5 is 5 to 10 cm higher than the top surface of the integrated box 2, the diameter ratio of the upper and lower circular surfaces of the inverted truncated cone is 2:1 to 4:1, and its height is 1 / 3 to 1 / 2 of the height of the integrated box 2;

[0048] The length of the stirring rod 9 extending into the emulsification chamber 11 is 3 / 4 to 4 / 5 of the height of the integrated box 2, and the stirring paddle 10 has 2 to 4 blades, and the length of the blades is 1 / 4 to 3 / 10 of the width of the emulsification chamber 11;

[0049] The height of the liquid partition plate 16 is 3 / 4 to 4 / 5 of the height of the integrated box 2 , and the liquid holding height in the emulsification chamber 11 / stabilization chamber 17 is 1 / 2 to 3 / 4 of the height of the integrated box 2 .

[0050] Example 8

[0051] On the basis of Example 7, it also includes:

[0052] A first partition plate 7 is provided between the cyclone unit and the emulsification stabilization unit, and the cyclone heavy liquid outlet pipe 6 penetrates the first partition plate 7 to connect with the cyclone separator 5 and the emulsification chamber 11; a second partition plate 22 is provided between the stabilization chamber 17 and the coalescing unit, and the coalescing separator liquid inlet pipe 21 penetrates the second partition plate 22 to connect with the stabilization chamber 17 and the coalescing separator 23; a third partition plate 28 is provided between the coalescing unit and the adsorption degradation unit, and the adsorption degradation device liquid inlet pipe 29 penetrates the third partition plate 28 to connect with the coalescing separator 23 and the adsorption degrader 30.

[0053] The specific implementation process of this embodiment is as follows:

[0054] Close the drain ball valve 12, open the water outlet ball valve 32, start the stirring motor 8, and set the stirring speed to 200-400rpm; introduce 0-10℃ cooling water from the cooling water inlet 4, which fills the cooling jacket 3 and flows out from the cooling water outlet 34. After the water temperature of the cooling water outlet 34 is consistent with the water temperature of the cooling water inlet 4, introduce the oily water sample to be treated from the oil-water mixture inlet 1, and ensure that the apparent flow velocity of the oily water sample is 8-15 m / s;

[0055] Under the combined action of the cyclonic centrifugal force and gravity, the light free oil in the oil-containing water sample moves upward into the cyclonic oil discharge pipe 14, while the heavy water sample containing the emulsified oil moves downward and enters the emulsification chamber 11 through the cyclonic heavy liquid outlet pipe 6. Under the action of rapid stirring and shearing, the O / W type emulsified oil droplets in the heavy water sample containing the emulsified oil become smaller and homogenized to form a homogeneous emulsified oil water sample, and at the same time continue to enter the stabilization chamber 17 through the siphon connecting pipe 15 for static buffering. After the liquid holding height in the stabilization chamber 17 is sufficient, the homogeneous emulsified oil water sample enters the coalescing separator 23 through the coalescing separator inlet pipe 21, and passes through the primary coalescing filler filling area 24 (filler polytetrafluoroethylene / nylon 66 / polyester) and the secondary coalescing filler filling area 25 (filler absorbent cotton) in sequence. The emulsified oil droplets dispersed in the homogeneous emulsified oil water sample are intercepted, collided, and adhered to grow rapidly, and are separated from the heavy water sample. The light oil sample moves upward to form an upper and lower layer. The upper light oil sample flows out through the light oil sample outlet end and finally flows into the oil collection tank 27 through the coalescing oil discharge pipe 26; the lower heavy water sample (containing trace emulsified oil) is discharged through the heavy water sample outlet end and flows into the adsorption degrader 30 through the adsorption degrader inlet pipe 29; at a relatively low flow rate, the Fe-C composite particle filler filled in the adsorption degradation filler filling layer 31 physically adsorbs and oxidatively degrades the trace emulsified oil, and intercepts the soluble metal ions in the heavy water sample. Finally, the oil-free water sample flows out through the outlet 33 and enters the subsequent process. When the device is overhauled or the process is suspended, the drain ball valve 12 is opened, and the remaining liquid in the emulsification chamber 11 and the remaining liquid in the stabilization chamber 17 enter the liquid collection box 20 through the first drain pipe and the second drain pipe.

Claims

1. A fiber aggregation coupled adsorption degradation oil removal device, characterized in that: It includes a cyclone unit, an emulsion stabilization unit, a coalescence unit and an adsorption degradation unit which are connected in sequence; it also includes a liquid collecting device connected to the cyclone unit, the emulsion stabilization unit and the coalescence unit; the cyclone unit is connected to the oil-water mixture produced from the outside.

2. The fiber aggregation coupled adsorption degradation and oil removal device according to claim 1 is characterized by: The cyclone unit comprises a cyclone separator (5), the upper part of which is provided with an oil-water mixture inlet (1) and a cyclone oil discharge pipe (14), and the bottom part of which is provided with a cyclone heavy liquid outlet pipe (6); wherein the oil-water mixture inlet (1) is connected to the upper part of the cyclone separator (5) in a tangential manner.

3. The fiber aggregation coupled adsorption degradation and oil removal device according to claim 2 is characterized in that: The emulsification stabilization unit comprises an emulsification chamber (11) and a stabilization chamber (17) separated by a liquid partition plate (16), wherein the emulsification chamber (11) is connected to a cyclonic heavy liquid outlet pipe (6); and further comprises a connecting pipe for connecting the emulsification chamber (11) and the stabilization chamber (17); wherein a stirring device is provided in the emulsification chamber (11), and the stirring device comprises a stirring motor (8), a stirring rod (9) and a stirring paddle (10) connected in sequence; and the bottoms of the emulsification chamber (11) and the stabilization chamber (17) are both connected to a liquid collecting device.

4. The fiber aggregation coupled adsorption degradation and oil removal device according to claim 3 is characterized in that: The height of the liquid partition plate (16) is greater than the liquid level heights of the emulsification chamber (11) and the stabilization chamber (17).

5. The fiber aggregation coupled adsorption degradation and oil removal device according to claim 4 is characterized in that: One end of the connecting pipe is arranged at the bottom of the emulsification chamber (11), and the other end is arranged at the bottom of the stabilization chamber (17), 3 to 6 cm away from the bottom of the emulsification chamber (11) and the bottom of the stabilization chamber (17); the connecting pipe is a siphon connecting pipe (15).

6. The fiber aggregation coupled adsorption degradation and oil removal device according to claim 5 is characterized in that: The coalescing unit comprises a coalescing separator (23), the inlet end of the coalescing separator (23) is a coalescing separator liquid inlet pipe (21), and the coalescing separator liquid inlet pipe (21) is connected to a stabilization chamber (17); the outlet end of the coalescing separator (23) comprises a light oil sample outlet end and a heavy water sample outlet end; the light oil sample outlet end is connected to a liquid collecting device via a coalescing oil drain pipe (26); the heavy water sample outlet end is connected to an adsorption degradation unit; and a primary coalescing filler filling area (24) and a secondary coalescing filler filling area (25) are sequentially arranged in the coalescing separator (23) along a direction from the inlet end to the outlet end.

7. The fiber aggregation coupled adsorption degradation and oil removal device according to claim 6 is characterized by: The adsorption degradation unit comprises an adsorption degradation device (30), the inlet end of the adsorption degradation device (30) is an adsorption degradation device liquid inlet pipe (29) connected to the outlet end of the heavy water sample, the outlet end of the adsorption degradation device (30) is a water outlet (33), and an adsorption degradation filler filling layer (31) is provided in the adsorption degradation device (30).

8. The fiber aggregation coupled adsorption degradation and oil removal device according to claim 7 is characterized in that: The liquid collecting device comprises a liquid collecting box (20) and an oil collecting box (27); wherein the liquid collecting box (20) is connected to the bottom of the emulsification chamber (11) via a first liquid discharge pipe (13); the liquid collecting box (20) is connected to the bottom of the stabilization chamber (17) via a second liquid discharge pipe (19); the first liquid discharge pipe (13) and the second liquid discharge pipe (19) are both provided with a liquid discharge ball valve (12); the oil collecting box (27) is connected to the cyclone separator (5) via a cyclone oil discharge pipe (14), and is connected to the light oil sample outlet of the condensation separator (23) via a condensation oil discharge pipe (26).

9. The fiber aggregation coupled adsorption degradation and oil removal device according to claim 8 is characterized in that: The cyclone unit, emulsion stabilization unit, coalescence unit and adsorption degradation unit are all placed in an integrated box (2), and the liquid collection box (20) and the oil collection box (27) are located outside the integrated box (2); the outer wall and the bottom of the integrated box (2) are provided with a cooling jacket (3), and a gap of 3 to 8 cm is provided between the inner wall of the cooling jacket (3) and the outer wall of the integrated box (2), and cooling water with a temperature of 0 to 10° C. is placed in the gap; the top of the cooling jacket (3) is not higher than the oil-water mixture inlet (1); the cooling jacket (3) is also provided with a cooling water inlet (4) and a cooling water outlet (34) arranged diagonally; wherein the cooling water inlet (4) is located at the bottom of the cooling jacket (3) on the side of the oil-water mixture inlet (1), and the cooling water outlet (34) is located at the top of the cooling jacket (3) on the opposite side.

10. The fiber aggregation coupled adsorption degradation oil removal device according to claim 9, characterized in that: A first partition (7) is provided between the cyclone unit and the emulsification stabilization unit, and a cyclone heavy liquid outlet pipe (6) penetrates the first partition (7) to communicate with the cyclone separator (5) and the emulsification chamber (11); a second partition (22) is provided between the stabilization chamber (17) and the coalescence unit, and a coalescence separator liquid inlet pipe (21) penetrates the second partition (22) to communicate with the stabilization chamber (17) and the coalescence separator (23); a third partition (28) is provided between the coalescence unit and the adsorption degradation unit, and an adsorption degradation unit liquid inlet pipe (29) penetrates the third partition (28) to communicate with the coalescence separator (23) and the adsorption degradation unit (30).

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