A polymer resin oil removing device
By using a polymer resin oil removal device, the oil-water mixture in oily wastewater is adsorbed and separated by a polymer oleophilic resin, which solves the problems of secondary pollution and high cost in existing technologies and achieves efficient and economical online treatment and regeneration capabilities.
Patent Information
- Application Number
- CN202521694299.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2035-08-08
AI Technical Summary
Existing oily wastewater treatment technologies such as air flotation, biochemical methods, membrane separation, and adsorption suffer from secondary pollution, high operating costs, or cumbersome regeneration operations. Therefore, there is a need to design an efficient oil removal device that can be used for online treatment and has regeneration capabilities.
The oil removal device using polymer resin includes a resin adsorption tank, an oil-water separation tank, and an intermediate storage tank. It uses polymer oleophilic resin to adsorb and separate oil-containing water, and combines differential pressure gauges and heating components to achieve online treatment and regeneration. It utilizes the oleophilic and hydrophobic properties of polymer oleophilic resin to separate emulsified oil molecules, and the resin can be replaced and regenerated through resin replacement holes.
It achieves efficient separation of oil and water mixtures in oily wastewater, reduces the oil content in the effluent, has online treatment and regeneration functions, reduces environmental pollution, and lowers operating costs.
Smart Images
Figure CN224590740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil removal technology for oily wastewater, and specifically to a polymer resin oil removal device. Background Technology
[0002] Oilfield wastewater, wastewater from oil refineries and petrochemical plants, ballast water, tank cleaning water, engine room water from oil tankers, and cleaning water from oil tank trucks all contain oil. This is a major source of environmental oil pollution, especially marine oil pollution (such as petroleum pollution).
[0003] In addition, oily wastewater is generated in hydrometallurgical production and cutting fluids used in metal processing. Direct discharge of this wastewater will pollute the environment, and direct transport to sewage treatment plants will often exceed the upper limit of sewage standards.
[0004] Current oil removal technologies for oily wastewater mainly include air flotation, membrane separation, adsorption, biochemical treatment, and coalescence. Air flotation and biochemical treatments generate secondary pollution during the process, requiring subsequent processes, and the effluent still has a relatively high oil content. Membrane separation suffers from membrane fouling, leading to increased operating pressure, and the membranes are expensive, resulting in high costs. Adsorption primarily uses activated carbon to absorb oil; while effective, the activated carbon needs regeneration after reaching adsorption saturation, which is cumbersome, and the resulting wastewater still pollutes the environment.
[0005] Therefore, it is necessary to design a device that utilizes the oleophilic and hydrophobic properties of an oil-removing medium (oil-absorbing polymer resin) to separate emulsified oil molecules from water and can discharge oil / water online in a timely manner. Furthermore, the device also needs to have a regeneration function. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide a polymer resin degreasing device.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: a polymer resin oil removal device, including a resin adsorption tank, an oil-water separation tank and an intermediate storage tank. The bottom of the resin adsorption tank is provided with a second inlet pipeline and the top is provided with a first outlet pipeline. The second inlet pipeline and the first inlet pipeline are connected. The first outlet pipeline is connected with a flushing water pipeline. The resin adsorption tank is fixed on a support base. Support plates are provided at the upper and lower ends of the tank. Water caps are installed on the support plates. Polymer oleophilic resin is filled between the two support plates to form a polymer oleophilic resin filling area. The bottom of the oil-water separation tank is provided with a second outlet pipeline, which is connected to the first outlet pipeline. The resin adsorption tank is also provided with a differential pressure gauge and a heating component. The intermediate storage tank is connected to the bottom of the resin adsorption tank through a pipeline.
[0008] Preferably, the top of the oil-water separator is also provided with an exhaust valve, which is used to balance the pressure inside and outside the oil-water separator.
[0009] Preferably, an oil outlet pipeline is provided near the top on one side wall of the oil-water separator, and a water outlet pipeline is provided near the bottom. A fifth valve is provided on the oil outlet pipeline, and a sixth valve is provided on the oil-water separator.
[0010] Preferably, the first inlet pipeline is provided with a first valve and a second valve, and the second inlet pipeline is connected to the first inlet pipeline between the first valve and the second valve.
[0011] Preferably, the flushing water pipeline is equipped with a third valve and a fourth valve, and the first outlet pipeline is connected to the flushing water pipeline between the third valve and the fourth valve.
[0012] Preferably, a resin replacement hole is provided on the side wall of the resin adsorption tank between two support plates, the resin replacement hole being used for filling and replacing polymeric oleophilic resin.
[0013] Preferably, the inner wall of the resin adsorption tank is provided with protrusions, which are used to fix the support plate inside the resin adsorption tank.
[0014] Preferably, the intermediate storage tank is equipped with a water pump, and the outlet of the water pump is connected to the pump outlet pipeline.
[0015] Preferably, a seventh valve is provided on the pump outlet pipeline at the end near the oil-water separator.
[0016] Preferably, the oil-water separator is equipped with a baffle plate and an oil separator plate. Taking the connection point between the second outlet pipeline and the oil-water separator as a reference, the baffle plate and the oil separator plate are located near the connection point between the outlet pipeline and the oil-water separator. The baffle plate is connected to the bottom of the oil-water separator to prevent oil / water entering the oil-water separator from flowing directly out of the outlet pipeline without separation. A gap is left between the oil separator plate and the bottom of the oil-water separator to allow the separated water to flow through the gap to the outlet pipeline and then be discharged, while the upper layer of oil is blocked.
[0017] The beneficial effects of this utility model are as follows: This utility model provides a polymer resin oil removal device, including a resin adsorption tank, an oil-water separation tank, and an intermediate storage tank. The bottom of the resin adsorption tank is provided with a second inlet pipeline, and the top is provided with a first outlet pipeline. The second inlet pipeline and the first inlet pipeline are connected, and the first outlet pipeline is connected with a flushing water pipeline. The resin adsorption tank is fixed on a support base, and support plates are respectively provided at the upper and lower ends inside. Water caps are installed on the support plates, and polymer oleophilic resin is filled between the two support plates to form a polymer oleophilic resin filling area. The bottom of the oil-water separation tank is provided with a second outlet pipeline, and the second outlet pipeline is connected to the first outlet pipeline. The resin adsorption tank is also provided with a differential pressure gauge and a heating component. The intermediate storage tank is connected to the bottom of the resin adsorption tank through a pipeline. The polymer resin oil removal device can treat oily water online. Specifically, the oily water enters the resin adsorption tank from the bottom. After passing through the polymer oleophilic resin filling area, small-diameter oil droplets can be aggregated into larger-diameter oil droplets and enter the oil-water separation tank to achieve stratification. The polymer resin degreasing device provided by this utility model also has regeneration capability. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] In the picture: Figure 1 This is a three-dimensional schematic diagram of the polymer resin degreasing device of this utility model; Figure 2 for Figure 1 Schematic diagram of the internal structure of the medium resin adsorption tank; Figure 3 for Figure 1 Schematic diagram of the internal structure of the oil-water separator.
[0020] 100. Polymer resin oil removal device; 1. Resin adsorption tank; 11. First inlet pipeline; 111. First valve; 112. Second valve; 12. Second inlet pipeline; 13. Flushing water pipeline; 131. Third valve; 132. Fourth valve; 14. First outlet pipeline; 15. Resin replacement hole; 16. Differential pressure gauge; 17. Heating component; 18. Second outlet pipeline; 19. Support base; 2. Oil-water separator; 21. Oil outlet pipeline; 211. Fifth valve; 22. Water outlet pipeline; 221. Sixth valve; 23. Exhaust valve; 24. Pump outlet pipeline; 25. Water baffle; 26. Oil separator; 241. Seventh valve; 3. Intermediate storage tank; 31. Water pump; 4. Support plate; 41. Water cap; 42. Protrusion. Detailed Implementation
[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0022] refer to Figures 1-3 As shown, this utility model provides a polymer resin degreasing device 100, including a resin adsorption tank 1 and an oil-water separation tank 2, which are connected by a pipeline. The bottom of the resin adsorption tank 1 is provided with a second inlet pipeline 12, and the top is provided with a first outlet pipeline 14. The second inlet pipeline 12 is connected to the first inlet pipeline 11, and the first outlet pipeline 14 is connected to the flushing water pipeline 13. The interior of the resin adsorption tank 1 is provided with support plates 4 at the upper and lower ends, respectively. Water caps 41 are installed on the support plates 4, and the water caps 41 can supply oil / water emulsions. A polymer oleophilic resin (not shown in the figure) is filled between the two support plates 4 to form a polymer oleophilic resin filling area. The bottom of the oil-water separator 2 is equipped with a second outlet pipeline 18, which is connected to the first outlet pipeline 14. An oil outlet pipeline 21 is located near the top of one side wall of the oil-water separator 2, and a water outlet pipeline 22 is located near the bottom. An exhaust valve 23 is also located at the top of the oil-water separator 2, used to balance the internal and external pressures of the oil-water separator 2. The resin adsorption tank 1 is also equipped with a differential pressure gauge 16. The measuring points of the differential pressure gauge 16 are respectively located at both ends of the resin adsorption tank 1, and are situated outside the support plate 4. The differential pressure gauge 16 is used to measure the pressure difference across the polymer oleophilic resin filling area. The oleophilic resin is P(BMA-co-MMA) porous resin, P(LA / BA) resin, or P(SMA / MA / St) resin, or other types of oleophilic resins.
[0023] refer to Figure 1 As shown, on the side wall of the resin adsorption tank 1, between the two support plates 4, a resin replacement hole 15 is also provided. The resin replacement hole 15 is used for filling and replacing the polymer oleophilic resin.
[0024] refer to Figure 2 As shown, the inner wall of the resin adsorption tank 1 is provided with protrusions 42, which are used to fix the support plate 4 inside the resin adsorption tank 1 and play a reinforcing role.
[0025] In this embodiment, specifically: the resin adsorption tank 1 has a cylindrical body, fixed on a support base 19, with semi-circular end caps at both ends. The top of the upper end cap has a first outlet pipeline 14, and the bottom of the lower end cap has a second inlet pipeline 12. The first inlet pipeline 11 has a first valve 111 and a second valve 112, and the second inlet pipeline 12 connects to the first inlet pipeline 11 between the first valve 111 and the second valve 112. The flushing water pipeline 13 has a third valve 131 and a fourth valve 132, and the first outlet pipeline 14 connects to the flushing water pipeline 13 between the third valve 131 and the fourth valve 132. The flushing water pipeline 13 connects to the second outlet pipeline 18. The oil outlet pipeline 21 has a fifth valve 211, and the water outlet pipeline 22 has a sixth valve 221.
[0026] refer to Figure 1 As shown, an intermediate storage tank 3 is connected to the first inlet pipeline 11 on the side equipped with the second valve 112. The intermediate storage tank 3 is used to store flushing water and allows the water to remain still. A water pump 31 is installed on the intermediate storage tank 3, and the outlet of the water pump 31 is connected to the pump outlet pipeline 24. The water pump 31 can transport the oil-containing water in the intermediate storage tank 3 to the oil-water separator 2 for separation using the pump outlet pipeline 24. A seventh valve 241 is installed on the pump outlet pipeline 24 near the oil-water separator 2. When the water pump 31 is not working, the seventh valve 241 is closed to prevent the oil-containing water in the oil-water separator 2 from entering the intermediate storage tank 3.
[0027] refer to Figure 2 As shown, the bottom of the resin adsorption tank 1 is also provided with a heating element 17, which can heat the liquid in the resin adsorption tank 1. The heating element 17 is not limited to electric heating tubes and steam heating tubes.
[0028] refer to Figure 3 As shown, the oil-water separator 2 is equipped with a baffle plate 25 and an oil separator plate 26. Taking the connection between the second outlet pipeline 18 and the oil-water separator 2 as a reference, the baffle plate 25 and the oil separator plate 26 are located near the connection between the water outlet pipeline 22 and the oil-water separator 2. The baffle plate 25 is connected to the bottom of the oil-water separator 2, which can prevent the oil / water entering the second outlet pipeline 18 from flowing directly out of the water outlet pipeline 22 without separation. There is a gap between the oil separator plate 26 and the bottom of the oil-water separator 2, which allows the water after separation to flow through the gap to the water outlet pipeline 22 and then be discharged, while the upper layer of oil is blocked.
[0029] During operation, the first valve 111 is open, the second valve 112 is closed, the third valve 131 is closed, and the fourth valve 132 is open. Oily water enters through the first inlet pipe 11 and then through the second inlet pipe 12 into the resin adsorption tank 1. After passing through the polymer oleophilic resin filling area, it enters the second outlet pipe 18 through the first outlet pipe 14 and finally enters the oil-water separator 2 for oil-water separation. Water is discharged through the water outlet pipe 22, and oil is discharged through the oil outlet pipe 21. After passing through the polymer oleophilic resin between the support plates 4, the oleophilic groups of the polymer oleophilic resin attract the dispersed oil droplets in the water. The low surface tension between the oil and the polymer oleophilic resin causes the oil to condense on the polymer oleophilic resin particles, forming an oil film. When the oil film accumulates to a certain amount, it can be torn apart by the water flow, detached from the polymer oleophilic resin particles, and enter the oil-water separator 2. The size of the oil droplets containing oil and water entering the resin adsorption tank 1 is generally between 10 and 130 micrometers, while the oil droplets released from the resin layer are generally larger than 150 micrometers and can be separated in the oil-water separation tank 2.
[0030] If, after a period of operation, the differential pressure displayed on the differential pressure gauge 16 is greater than 0.35 kg / cm oil-water separator 2, it indicates that the pores between the resins in the polymer oleophilic resin filling area are blocked. The state of each valve is switched, specifically, the first valve 111 is closed, the second valve 112 is open, the third valve 131 is open, and the fourth valve 132 is closed. The flushing water enters the resin adsorption tank 1 from the flushing water pipeline 13 through the first outlet pipeline 14 to flush the polymer oleophilic resin filling area between the water caps 41.
[0031] After the polymer oleophilic resin filling area, which has undergone rinsing and regeneration, is put into oil absorption operation, if the pressure difference on the differential pressure gauge 16 quickly reaches 0.35 kg / cm² within a short period of time... 2 This indicates that simply rinsing with water is insufficient for regeneration. In this case, first valve 111, second valve 112, and fourth valve 132 should be closed. Water should be introduced from the rinsing water line 13 and allowed to overflow the polymer oleophilic resin filling area in the resin adsorption tank 1. The water should be heated using the heating element 17 to melt the high-melting-point substances adsorbed between the resins and clogging the resin pores. Then, the second valve 112 should be opened to discharge the hot water containing contaminants into the intermediate storage tank 3. This cycle should be repeated 3 to 5 times. Finally, the rinsing water should be used to rinse the polymer oleophilic resin filling area.
[0032] When the resin in the polymer oleophilic resin filling area reaches the replacement standard after working time, remove the used resin through the lower resin replacement hole 15 and fill it with fresh resin through the upper resin replacement hole 15. After replacement, perform degreasing.
[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0034] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0035] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A high molecular resin oil removing apparatus characterized by comprising: a high molecular resin oil removing device; and a high molecular resin oil removing device. The system includes a resin adsorption tank (1), an oil-water separator (2), and an intermediate storage tank (3). The resin adsorption tank (1) has a second inlet pipeline (12) at the bottom and a first outlet pipeline (14) at the top. The second inlet pipeline (12) and the first inlet pipeline (11) are connected. The first outlet pipeline (14) and the flushing water pipeline (13) are connected. The resin adsorption tank (1) is fixed on a support base (19). Support plates (4) are provided at the upper and lower ends of the tank. Water caps (41) are installed on the support plates (4). High molecular weight oleophilic resin is installed between the two support plates (4) to form a high molecular weight oleophilic resin filling area. The oil-water separator (2) has a second outlet pipeline (18) at the bottom. The second outlet pipeline (18) and the first outlet pipeline (14) are connected. The resin adsorption tank (1) is also equipped with a differential pressure gauge (16) and a heating element (17). The intermediate storage tank (3) is connected to the bottom of the resin adsorption tank (1) through a pipeline.
2. The polymer resin deoiling apparatus of claim 1, wherein: The top of the oil-water separator (2) is also equipped with an exhaust valve (23), which is used to balance the internal and external pressure of the oil-water separator (2).
3. The polymer resin deoiling apparatus of claim 1, wherein: An oil outlet pipeline (21) is provided near the top of one side wall of the oil-water separator (2), and a water outlet pipeline (22) is provided near the bottom. A fifth valve (211) is provided on the oil outlet pipeline (21), and a sixth valve (221) is provided on the oil-water separator (2).
4. The polymer resin deoiling apparatus of claim 1, wherein: The first inlet pipeline (11) is provided with a first valve (111) and a second valve (112), and the second inlet pipeline (12) is connected to the first inlet pipeline (11) between the first valve (111) and the second valve (112).
5. The polymer resin deoiling apparatus of claim 1, wherein: The flushing water pipeline (13) is equipped with a third valve (131) and a fourth valve (132), and the first outlet pipeline (14) is connected to the flushing water pipeline (13) between the third valve (131) and the fourth valve (132).
6. The polymer resin deoiling apparatus of claim 1, wherein: On the side wall of the resin adsorption tank (1), between the two support plates (4), a resin replacement hole (15) is provided. The resin replacement hole (15) is used to fill and replace the polymer oleophilic resin.
7. The polymer resin deoiling apparatus of claim 1, wherein: The inner wall of the resin adsorption tank (1) is provided with protrusions (42), which are used to fix the support plate (4) inside the resin adsorption tank (1).
8. The polymer resin degreasing device according to claim 1, characterized in that: The intermediate storage tank (3) is equipped with a water pump (31), and the outlet of the water pump (31) is connected to the pump outlet pipeline (24).
9. The polymer resin deoiling apparatus of claim 8, wherein: A seventh valve (241) is provided on the pump outlet pipeline (24) at the end near the oil-water separator (2).
10. The polymer resin deoiling apparatus of claim 1, wherein: The oil-water separator (2) is equipped with a baffle plate (25) and an oil separator plate (26). With reference to the connection between the second outlet pipeline (18) and the oil-water separator (2), the baffle plate (25) and the oil separator plate (26) are located near the connection between the outlet pipeline (22) and the oil-water separator (2). The baffle plate (25) and the bottom of the oil-water separator (2) are connected together. There is a gap between the oil separator plate (26) and the bottom of the oil-water separator (2).