Oil-water separation treatment device for oily wastewater

Abstract

The utility model provides an oily wastewater oil-water separation treatment device, which relates to the field of oily wastewater oil-water separation and comprises a separation unit, the separation unit comprises a treatment tank, and a flushing unit is arranged on one side of the treatment tank; particle impurities in oil wastewater can be intercepted and filtered through the first filter part and the second filter part, oil can be intercepted through the separation part, water can enter the bottom of the inner cavity of the treatment tank, oil and water separation operation is achieved, the wastewater can be sucked and sprayed upwards through the high-pressure pump, reverse flowing is achieved, and oil-water separation is achieved. The waste water flowing upwards flushes and removes impurities intercepted at the tops of the first filter part and the second filter part, the flushed and removed impurities enter a collecting box through a blow-off pipe and are intercepted and collected again through an intercepting net frame, and the waste water directly penetrates through the intercepting net frame and a connecting pipe to enter an inner cavity of a treatment tank. Therefore, the backwashing operation of the first filter element and the second filter element is realized, and the first filter element and the second filter element are prevented from being blocked.

Description

Technical Field

[0001] The utility model belongs to the field of oily wastewater oil-water separation, in particular to an oily wastewater oil-water separation treatment device. Background Art

[0002] Oily wastewater oil-water separation treatment device is a kind of equipment used to treat wastewater containing oil pollution. Its main function is to separate the oil and water in the wastewater to meet the environmental emission standards or reuse requirements.

[0003] When the oil-water separator is in use, oily wastewater is injected into the separator, and the oily wastewater is filtered and separated by multiple filters inside the separator, thereby achieving the treatment of the oily wastewater and the separation of oil and water. After long-term use, a large amount of impurities are accumulated on the filter element of the oil-water separator in the prior art due to long-term filtration and interception. If the impurities are not treated in time, the filter element will be blocked, affecting the smoothness of the oily wastewater treatment, thereby reducing the efficiency of oil-water separation.

[0004] In summary, the utility model therefore provides an oil-water separation treatment device for oily wastewater to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] An oil-water separation treatment device for oily wastewater comprises a separation unit, the separation unit comprises a treatment tank, and a flushing unit is arranged on one side of the treatment tank, a tank cover is movably connected to the top of the treatment tank, a connecting shaft is fixedly connected to the bottom of the tank cover, a first filter element, a second filter element and a separation element are respectively arranged on the surface of the connecting shaft, an oil collecting tank is arranged on one side of the treatment tank, and an oil pump is fixedly connected to the top of the oil collecting tank, and two ends of the oil pump are respectively connected to the oil collecting tank and the treatment tank;

[0007] The flushing unit includes a collecting box, the top of which is connected to a sewage pipe, and one end of the sewage pipe away from the collecting box is connected to a processing tank, the inner cavity of the collecting box is movably connected to an interception grid, the bottom of the collecting box is connected to a connecting pipe, and the other end of the connecting pipe is connected to the processing tank, and a high-pressure pump is provided at the bottom of the inner cavity of the processing tank.

[0008] Furthermore, in the utility model, the top of the tank cover is connected to a water inlet pipe, the lower end of the front of the treatment tank is connected to a drain pipe, the lower end of the front of the oil collecting tank is connected to an oil drain pipe, and the surfaces of the water inlet pipe, drain pipe and oil drain pipe are all connected to solenoid valves.

[0009] Furthermore, in the utility model, the bottom of the processing tank is fixedly connected to a bottom plate, the bottom of the oil collecting tank is fixedly connected to the bottom plate, and the surface of the sewage pipe is also connected to a solenoid valve.

[0010] Furthermore, in the present invention, the first filter element is a stainless steel mesh, the second filter element is a PP fiber pleated filter layer, and the separator is an absorbent cotton fiber filter layer.

[0011] Furthermore, in the utility model, the bottom of the tank cover is fixedly connected with limiting rods on all sides, the top of the processing tank is provided with limiting holes on all sides, the bottom of the limiting rod extends to the inner cavity of the limiting hole and is movably connected with the inner cavity of the limiting hole.

[0012] Furthermore, in the utility model, the front and back sides of the tank cover are fixedly connected with a holder, and the front and back sides of the processing tank are movably connected with a clamping plate via a rotating shaft. The clamping plate is located in the inner cavity of the holder and is movably connected with the inner cavity of the holder.

[0013] Beneficial effects: The utility model has the following beneficial effects:

[0014] The utility model seals the treatment tank by a tank cover, and the treatment tank provides space for oil-water separation treatment, particulate impurities in the oily wastewater can be intercepted and filtered by the first filter element and the second filter element, and the oil can be intercepted by the separation element, and the water will pass through the separation element and enter the bottom of the inner cavity of the treatment tank, so as to realize the separation operation of oil and water, and the oil intercepted above the separation element will be sucked and transmitted to the interior of the oil collecting tank by the oil pump, and the wastewater can be sucked and sprayed upward by the high-pressure pump to realize reverse flow, so that the upward-flowing wastewater can flush out the impurities intercepted on the top of the first filter element and the second filter element, and the flushed impurities will enter the interior of the collection box through the drain pipe, and will be intercepted and collected again by the interception grid frame, and the wastewater will directly pass through the interception grid frame and the connecting pipe into the inner cavity of the treatment tank, so as to realize the backwashing operation of the first filter element and the second filter element, and prevent the first filter element and the second filter element from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a partial cross-sectional state of the treatment tank of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the can cover of the utility model when viewed from above;

[0018] Figure 4 This utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] In the figure:

[0020] 1. Separation unit; 11. Processing tank; 111. Drain pipe; 112. Limiting hole; 113. Clamping plate; 12. Tank cover; 121. Water inlet pipe; 122. Limiting rod; 123. Clamping seat; 13. Connecting shaft; 14. First filter element; 15. Second filter element; 16. Separation element; 17. Oil collecting tank; 171. Oil drain pipe; 18. Oil pump; 19. Oil pipeline; 2. Flushing unit; 21. Collecting box; 22. Drain pipe; 23. Intercepting grid; 24. Connecting pipe; 25. High-pressure pump. DETAILED DESCRIPTION

[0021] In order to better understand the technical content of the utility model, specific embodiments are cited and described as follows in conjunction with the accompanying drawings. In this disclosure, various aspects of the utility model are described with reference to the accompanying drawings, and many illustrative embodiments are shown in the accompanying drawings. The embodiments of the present disclosure are not necessarily defined to include all aspects of the utility model. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the utility model are not limited to any implementation method. In addition, some aspects disclosed in the utility model can be used alone, or used in any appropriate combination with other aspects disclosed in the utility model.

[0022] Example 1

[0023] like Figure 1-4 As shown, it is the first embodiment of the utility model, which provides an oil-water separation treatment device for oily wastewater, including a separation unit 1, the separation unit 1 includes a treatment tank 11, and a flushing unit 2 is arranged on one side of the treatment tank 11, the top of the treatment tank 11 is movably connected with a tank cover 12, the bottom of the tank cover 12 is fixedly connected with a connecting shaft 13, the surface of the connecting shaft 13 is respectively provided with a first filter element 14, a second filter element 15 and a separation element 16, an oil collecting tank 17 is arranged on one side of the treatment tank 11, and the top of the oil collecting tank 17 is fixedly connected with an oil pump 18, and the two ends of the oil pump 18 are respectively connected with the oil collecting tank 17 and the treatment tank 11;

[0024] The flushing unit 2 includes a collecting box 21, the top of the collecting box 21 is connected to a sewage pipe 22, and the end of the sewage pipe 22 away from the collecting box 21 is connected to the treatment tank 11, the inner cavity of the collecting box 21 is movably connected to an interception grid 23, the bottom of the collecting box 21 is connected to a connecting pipe 24, and the other end of the connecting pipe 24 is connected to the treatment tank 11, and a high-pressure pump 25 is arranged at the bottom of the inner cavity of the treatment tank 11.

[0025] like Figure 1-3As shown, the oily wastewater enters the interior of the treatment tank 11, and the treatment tank 11 provides space for oil-water separation treatment. When the oily wastewater passes through the first filter element 14, the first filter element 14 intercepts large particles of impurities in the oily wastewater, and when passing through the second filter element 15, the small particles of impurities in the oily wastewater are intercepted and filtered, thereby realizing the pretreatment of the oily wastewater. Then, when the oily wastewater falls on the separator 16, the oil can be intercepted by the separator 16, and the water will pass through the separator 16 and enter the bottom of the inner cavity of the treatment tank 11, thereby realizing the separation of oil and water. Then, the oil pump 18 will make the oil pipe 19 absorb the oil intercepted above the separator 16 and transmit it to the inside of the oil collecting tank 17 for collection. When the first filter element 14 and the second filter 1 5 when a large amount of impurities are accumulated on the surface and need to be cleaned, the wastewater at the bottom of the inner cavity of the treatment tank 11 can be sucked up by the high-pressure pump 25, and the wastewater can be sprayed upward to realize the reverse flow of the wastewater, and then the wastewater flowing upward will impact the first filter element 14 and the second filter element 15, and can flush out the impurities intercepted on the top thereof, and then the wastewater will drive the flushed impurities to enter the interior of the collection box 21 through the sewage pipe 22, and the impurities will be intercepted and collected by the interception grid 23, and the wastewater will directly pass through the interception grid 23 and the connecting pipe 24 to enter the inner cavity of the treatment tank 11, so as to realize the backwashing operation of the first filter element 14 and the second filter element 15, and prevent the accumulation of impurities on the top of the first filter element 14 and the second filter element 15 and cause blockage.

[0026] Example 2

[0027] Reference Figure 1 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0028] In this embodiment, the top of the tank cover 12 is connected to a water inlet pipe 121, the lower end of the front of the treatment tank 11 is connected to a drain pipe 111, the lower end of the front of the oil collecting tank 17 is connected to an oil drain pipe 171, and the surfaces of the water inlet pipe 121, the drain pipe 111 and the oil drain pipe 171 are all connected to solenoid valves.

[0029] The bottom of the processing tank 11 is fixedly connected to a bottom plate, the bottom of the oil collecting tank 17 is fixedly connected to the bottom plate, and the surface of the sewage pipe 22 is also connected to a solenoid valve.

[0030] like Figure 1 As shown, the oily wastewater can be transmitted to the inner cavity of the treatment tank 11 through the water inlet pipe 121, and the wastewater after oil-water separation can be discharged through the drain pipe 111, and the collected oil can be discharged through the oil drain pipe 171. The treatment tank 11 and the oil collecting tank 17 can be stably supported by the bottom plate, and the water inlet pipe 121, the sewage pipe 22, the drain pipe 111 and the oil drain pipe 171 can be opened or closed by setting an electromagnetic valve.

[0031] Example 3

[0032] Reference Figure 2-4 , which is the third embodiment of the utility model, and this embodiment is based on the previous two embodiments.

[0033] In this embodiment, the first filter element 14 is a stainless steel mesh, the second filter element 15 is a PP fiber folded filter layer, and the separator 16 is an absorbent cotton fiber filter layer.

[0034] The bottom of the tank cover 12 is fixedly connected to the limiting rod 122 around, and the top of the processing tank 11 is provided with the limiting hole 112 around. The bottom of the limiting rod 122 extends to the inner cavity of the limiting hole 112 and is movably connected to the inner cavity of the limiting hole 112.

[0035] The front and back sides of the tank cover 12 are fixedly connected to a holder 123 , and the front and back sides of the processing tank 11 are movably connected to a holder 113 via a rotating shaft. The holder 113 is located in the inner cavity of the holder 123 and is movably connected to the inner cavity of the holder 123 .

[0036] like Figure 2-4 As shown, the tank cover 12 drives the limiting rod 122 to enter the inner cavity of the limiting hole 112, thereby limiting the connection between the processing tank 11 and the tank cover 12, and at the same time, the clamping plate 113 is rotated to allow the clamping plate 113 to enter the inner cavity of the clamping seat 123, thereby fixing the connection between the processing tank 11 and the tank cover 12. Conversely, the clamping plate 113 is separated from the inner cavity of the clamping seat 123 to release the fixation, thereby facilitating the separation of the tank cover 12 and the processing tank 11.

[0037] When in use, firstly, the solenoid valve on the surface of the water inlet pipe 121 is opened, and the water inlet pipe 121 transmits the oily wastewater to the interior of the treatment tank 11. The treatment tank 11 provides space for oil-water separation treatment. When the oily wastewater passes through the first filter element 14, the first filter element 14 intercepts large particles of impurities in the oily wastewater, and intercepts and filters small particles of impurities in the oily wastewater when passing through the second filter element 15, thereby realizing the pretreatment of the oily wastewater. When the oily wastewater falls on the separator 16, the oil can be intercepted by the separator 16, and the water will pass through the separator 16 and enter the bottom of the inner cavity of the treatment tank 11, thereby realizing the separation of oil and water. Then, the oil pump 18 is operated to make the oil delivery pipe 19 absorb and transmit the oil intercepted above the separator 16 to the interior of the oil collecting tank 17 for collection. When a large amount of impurities accumulate on the first filter element 14 and the second filter element 15 and need to be cleaned, the solenoid valve on the surface of the water inlet pipe 121 is closed to stop the transportation of the oily wastewater, and the sewage pipe 2 is opened at the same time. 2, so that the sewage pipe 22 circulates, and then the high-pressure pump 25 operates to absorb the wastewater at the bottom of the inner cavity of the treatment tank 11, and sprays the wastewater upward to realize the reverse flow of the wastewater, and then the wastewater flowing upward impacts the first filter element 14 and the second filter element 15, and can flush out the impurities intercepted on the top thereof, and then the wastewater will drive the flushed impurities to enter the interior of the collection box 21 through the sewage pipe 22, and the impurities will be intercepted and collected by the interception grid 23, and the wastewater will directly pass through the interception grid 23 and the connecting pipe 24 to enter the inner cavity of the treatment tank 11, so as to realize the backwashing operation of the first filter element 14 and the second filter element 15, and prevent the accumulation of impurities on the top of the first filter element 14 and the second filter element 15 and cause blockage, and then open the drainage pipe 111, the drainage pipe 111 can discharge the separated wastewater, and by pulling the interception grid 23, the interception grid 23 can be taken out from the inside of the collection box 21, and then the intercepted impurities can be taken out for treatment.

[0038] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0039] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. An oil-water separation treatment device for oily wastewater, comprising a separation unit (1), characterized in that: The separation unit (1) comprises a treatment tank (11), and a flushing unit (2) is arranged on one side of the treatment tank (11); a tank cover (12) is movably connected to the top of the treatment tank (11); a connecting shaft (13) is fixedly connected to the bottom of the tank cover (12); a first filter element (14), a second filter element (15) and a separation element (16) are respectively arranged on the surface of the connecting shaft (13); an oil collecting tank (17) is arranged on one side of the treatment tank (11); an oil pump (18) is fixedly connected to the top of the oil collecting tank (17); and two ends of the oil pump (18) are respectively connected to the oil collecting tank (17) and the treatment tank (11); The flushing unit (2) comprises a collecting box (21), the top of the collecting box (21) is connected to a sewage discharge pipe (22), and one end of the sewage discharge pipe (22) away from the collecting box (21) is connected to the processing tank (11), the inner cavity of the collecting box (21) is movably connected to an interception grid (23), the bottom of the collecting box (21) is connected to a connecting pipe (24), and the other end of the connecting pipe (24) is connected to the processing tank (11), and a high-pressure pump (25) is arranged at the bottom of the inner cavity of the processing tank (11).

2. The oil-water separation treatment device for oily wastewater according to claim 1, characterized in that: The top of the tank cover (12) is connected to a water inlet pipe (121), the lower end of the front face of the treatment tank (11) is connected to a drain pipe (111), the lower end of the front face of the oil collecting tank (17) is connected to an oil drain pipe (171), and the surfaces of the water inlet pipe (121), the drain pipe (111) and the oil drain pipe (171) are all connected to solenoid valves.

3. The oil-water separation treatment device for oily wastewater according to claim 1, characterized in that: The bottom of the processing tank (11) is fixedly connected to a bottom plate, the bottom of the oil collecting tank (17) is fixedly connected to the bottom plate, and the surface of the sewage discharge pipe (22) is also connected to a solenoid valve.

4. The oil-water separation treatment device for oily wastewater according to claim 1, characterized in that: The first filter element (14) is a stainless steel mesh, the second filter element (15) is a PP fiber folded filter layer, and the separation element (16) is an absorbent cotton fiber filter layer.

5. The oil-water separation treatment device for oily wastewater according to claim 1, characterized in that: The bottom of the tank cover (12) is fixedly connected to a limiting rod (122) on all sides, the top of the processing tank (11) is provided with a limiting hole (112) on all sides, and the bottom of the limiting rod (122) extends to the inner cavity of the limiting hole (112) and is movably connected to the inner cavity of the limiting hole (112).

6. The oil-water separation treatment device for oily wastewater according to claim 1, characterized in that: The front and back sides of the tank cover (12) are fixedly connected to a clamping seat (123), and the front and back sides of the processing tank (11) are movably connected to a clamping plate (113) via a rotating shaft; the clamping plate (113) is located in the inner cavity of the clamping seat (123) and is movably connected to the inner cavity of the clamping seat (123).

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