Waste oil recovery system of airport oil depot sewage pool

Abstract

A disclosed waste oil recovery system for an airport oil depot sewage pool comprises a sewage treatment tank, one side of the sewage treatment tank is provided with a solid waste collection tank, a filter cartridge is fixed above the sewage treatment tank, and one side, close to the solid waste collection tank, of the filter cartridge is provided with a vertical gap; a circulating conveying belt is arranged on the side, away from the solid waste collecting tank, of the filter cartridge, the surface of the circulating conveying belt makes close contact with the filter cartridge, a plurality of filter frames are distributed on the outer portion of the circulating conveying belt at equal intervals, and the circulating conveying belt can circularly convey every two adjacent filter frames into the filter cartridge; and the connecting part of the filter cartridge and the circulating conveying belt penetrates through the vertical notch. The circulating conveyor belt drives the alternately distributed filter frames to circularly work, when a single filter frame is moved out for cleaning, a new filter frame can be immediately replaced, 24-hour uninterrupted filtering is realized, the treatment efficiency is greatly improved, and the problem of efficiency loss caused by shutdown cleaning of traditional equipment is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste oil recovery, and particularly relates to a waste oil recovery system for an airport oil depot sewage pool. BACKGROUND

[0002] Under the background of the rapid development of modern aviation industry, the airport oil depot, as the core facility for the storage and turnover of aviation fuel, will generate a large amount of oil-containing sewage in its daily operation. These sewage not only contains residual aviation kerosene, diesel oil and other recyclable resources, but also contains mechanical impurities, solid particles and colloidal precipitates. If the sewage is directly discharged or improperly treated, it will not only cause serious soil and water pollution, but also cause waste of valuable petroleum resources. At present, the existing waste oil recovery system has the following problems: first, the filter assembly is easy to block, and frequent shutdown for cleaning is required, which seriously affects the continuous treatment efficiency; second, the filtering precision is fixed, and most of them are single-stage filtering, which cannot realize the staged treatment of removing large particle impurities first and then intercepting small particles, resulting in concentrated filtering load and fast filter material consumption; third, the solid waste collection and filter cleaning links rely on manual operation, which has low automation degree and increases the operation and maintenance cost and labor intensity. Therefore, the present application provides an airport oil depot sewage pool waste oil recovery system integrating continuous filtering, multi-stage filtering and automatic pollution cleaning to solve the above technical problems. SUMMARY

[0003] In order to solve the problems mentioned in the background art, the present application provides an airport oil depot sewage pool waste oil recovery system.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme: An airport oil depot sewage pool waste oil recovery system, comprising a sewage treatment tank, a solid waste collection tank is arranged on one side of the sewage treatment tank, a filter cartridge is fixedly arranged above the sewage treatment tank, a vertical notch is formed in the side of the filter cartridge close to the solid waste collection tank, a circulating conveyor belt is arranged on the side of the filter cartridge away from the solid waste collection tank, the surface of the circulating conveyor belt is in close contact with the filter cartridge, and a plurality of filter frames are equidistantly distributed on the outside of the circulating conveyor belt, the circulating conveyor belt can circularly convey two adjacent filter frames into the filter cartridge, the connecting part of the filter cartridge and the circulating conveyor belt passes through the vertical notch, and a first filter mesh is formed in the filter frame.

[0005] Preferably, two annular notches are formed in the side of the filter cartridge away from the solid waste collection tank, a vertical connecting shaft is rotatably installed above the sewage treatment tank through a first support, two circular plates are fixedly arranged on the outside of the vertical connecting shaft, and the two circular plates correspond to the two annular notches one by one.

[0006] Preferably, two through holes and two second filter screen holes are arranged on the circular plate, the through holes and the second filter screen holes are arranged at intervals, the screen hole positions of the two second filter screen holes are one A type and one B type, the first filter screen holes also have A type and B type, and the filtering frames of the A type and B type first filter screen holes are alternately distributed outside the circulating conveying belt.

[0007] Preferably, the top end of the first support is fixed with a first rotary motor, and the output shaft of the first rotary motor is fixed with the top end of the vertical connecting shaft.

[0008] Preferably, a mounting rack is fixed above the solid waste collecting groove through a second support, a driving pulley, a driven pulley and a tension pulley are rotatably installed on the mounting rack respectively, and the circulating conveying belt is sleeved outside the driving pulley, the driven pulley and the tension pulley.

[0009] Preferably, a second rotary motor is fixed on the mounting rack, the output shaft of the second rotary motor is fixed with the driving pulley, a plurality of pressing pulleys are rotatably installed on the mounting rack, the pressing pulleys are located between the driving pulley and the driven pulley, the surface of the circulating conveying belt is tightly contacted with the filter cylinder through extrusion, and the tension pulley is located above the solid waste collecting groove.

[0010] Preferably, a filtering frame cleaning mechanism is arranged above the solid waste collecting groove, the filtering frame cleaning mechanism comprises a vertical support shaft, the vertical support shaft is rotatably installed on the side of the solid waste collecting groove away from the sewage treatment tank, a rotary joint is fixed at the top end of the vertical support shaft, a horizontal pipe is fixedly connected on one side of the rotary joint, and a cleaning brush is arranged below the horizontal pipe.

[0011] Preferably, a plurality of cleaning liquid nozzles are equidistantly distributed below the horizontal pipe, a cleaning liquid inlet pipe is rotatably connected to the top end of the rotary joint, and the vertical support shaft is driven to rotate by a third rotary motor.

[0012] Compared with the prior art, the beneficial effects of the present application are: 1、The present application drives the alternately distributed filtering frames to circulate by the circulating conveying belt, when a single filtering frame is removed for cleaning, a new filtering frame can be immediately replaced, realizing 24-hour uninterrupted filtration, greatly improving the processing efficiency, and solving the problem of efficiency loss caused by downtime cleaning of traditional equipment.

[0013] 2、The filtering frames of the A type and B type first filter screen holes are alternately distributed, cooperating with the corresponding type second filter screen holes on the circular plate, to form a fixed two-stage filtration process: the upper layer realizes coarse filtration through the combination of "A type + A type", to intercept large-particle solid impurities; and the lower layer realizes fine filtration through the combination of "A type + B type", to capture small suspended particles, through the hierarchical processing of coarse first and fine second, the probability of filter material blockage is reduced, and the overall filtration effect is improved.

[0014] 3、The application integrates the functions of automatic solid waste collection and filter material self-cleaning. When the filter frame moves to above the solid waste collection tank along the circulating conveyor belt, the filter frame can automatically pour the solid waste by turning over. The filter frame cleaning mechanism realizes deep cleaning of the filter hole by the synergistic effect of the rotating brush and the cleaning liquid injection, reducing manual intervention. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is the overall front view of the present application; Figure 2 It is the overall first perspective view of the present application; Figure 3 It is the overall second perspective view of the present application; Figure 4 It is the schematic diagram of the cooperation relationship between the circulating conveyor belt and the filter cylinder of the present application; Figure 5 It is the schematic diagram of the circular plate structure of the present application; Figure 6 It is the schematic diagram of the filter cylinder structure of the present application; Figure 7 It is the bottom view of the filter frame cleaning mechanism of the present application; Figure 8 It is the front view of the filter frame cleaning mechanism of the present application; In the figure: 1, sewage treatment tank; 2, solid waste collection tank; 3, filter cylinder; 301, annular notch; 302, vertical notch; 4, second support; 401, mounting bracket; 402, driving pulley; 403, second rotary motor; 404, driven pulley; 405, tension pulley; 406, compression pulley; 407, circulating conveyor belt; 408, filter frame; 4081, first filter hole; 5, first support; 501, vertical connecting shaft; 502, first rotary motor; 503, circular plate; 5031, second filter hole; 5032, through hole; 6, filter frame cleaning mechanism; 601, horizontal conduit; 602, rotary joint; 603, cleaning liquid introduction pipe; 604, vertical support shaft; 605, third rotary motor. DETAILED DESCRIPTION

[0017] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0018] Embodiment 1

[0019] With reference to Figures 1-8 The waste oil recovery system of the airport oil depot sewage pool comprises a sewage treatment tank 1, a solid waste collection tank 2 is arranged on one side of the sewage treatment tank 1, a filter cylinder 3 is fixed above the sewage treatment tank 1, a vertical gap 302 is formed in the side of the filter cylinder 3 close to the solid waste collection tank 2, a circulating conveying belt 407 is arranged on the side of the filter cylinder 3 away from the solid waste collection tank 2, the surface of the circulating conveying belt 407 is in close contact with the filter cylinder 3, a plurality of filter frames 408 are equidistantly distributed outside the circulating conveying belt 407, the circulating conveying belt 407 can convey two adjacent filter frames 408 into the filter cylinder 3 in a circulating manner, the connecting part of the filter cylinder 3 and the circulating conveying belt 407 passes through the vertical gap 302, and a first filter mesh hole 4081 is formed in the filter frame 408. The sewage in the sewage pool is filtered by the filter cylinder 3 and then enters the sewage treatment tank 1, so that oil-water separation is performed and the oil in the sewage is recovered. Two filter frames 408 are arranged in the filter cylinder 3, so that the sewage can be filtered twice, thereby filtering out the solid impurities in the sewage. The solid impurities filtered out are left in the filter frame 408. The plurality of filter cylinders 3 can be moved in a circulating manner by the circulating conveying belt 407, so that each filter frame 408 can be sequentially brought into the filter cylinder 3 for filtering. When the filter frame 408 needs to be cleaned, the single filter frame 408 can be moved out of the filter cylinder 3, and a new filter frame 408 can be brought into the previous position. When the individual filter frame 408 is cleaned, the other filter frames 408 can seamlessly continue to filter, thereby improving the filtering efficiency.

[0020] Embodiment 2

[0021] With reference to Figures 1-8The difference between the embodiment and embodiment 1 is that two annular notches 301 are formed in the side of the filter cartridge 3 away from the solid waste collecting groove 2, a vertical connecting shaft 501 is rotatably installed above the sewage treatment groove 1 through the first support 5, two circular plates 503 are fixed to the outside of the vertical connecting shaft 501, the two circular plates 503 correspond to the two annular notches 301 respectively, two through holes 5032 and two second filter screen holes 5031 are formed in the circular plate 503, the through holes 5032 and the second filter screen holes 5031 are arranged at intervals, the screen hole positions of the two second filter screen holes 5031 are A type and B type respectively, the first filter screen holes 4081 are also A type and B type, the filter frames 408 of the A type and B type first filter screen holes 4081 are alternately distributed outside the circulating conveying belt 407, the first rotating motor 502 is fixed to the top end of the first support 5, and the output shaft of the first rotating motor 502 is fixed to the top end of the vertical connecting shaft 501. The vertical connecting shaft 501 is driven to rotate by the first rotating motor 502, the circular plate 503 is driven to rotate, when the circular plate 503 is clamped in the annular notch 301, when the through hole 5032 is rotated to the alignment state with the filter cartridge 3, it is ensured that the filter frame 408 can pass through the through hole 5032, at this time, the circulating conveying filter frame 408 will not be affected, when the second filter screen hole 5031 is aligned with the filter cartridge 3, the top end of the circular plate 503 is in close contact with the bottom end of the filter frame 408, at this time, the first filter screen hole 4081 and the second filter screen hole 5031 can cooperate with each other to filter, when the AB types of the first filter screen hole 4081 and the second filter screen hole 5031 are the same, the hole positions are aligned, at this time, the filter aperture is the largest, when the AB types of the first filter screen hole 4081 and the second filter screen hole 5031 are different, the hole positions are staggered, so that the aperture is smaller. By reasonably setting the hole type of the filter frame 408 and the circular plate 503, it is ensured that when the first filter screen hole 4081 of the upper filter frame 408 located in the filter cartridge 3 is A type, the second filter screen hole 5031 on the circular plate 503 below is also A type, and the first filter screen hole 4081 of the lower filter frame 408 is B type, and the second filter screen hole 5031 on the circular plate 503 below is A type, so that the filter hole diameter of the first-stage filtration is larger, and the filter hole diameter of the second-stage filtration is smaller. And once this initial condition is ensured, when the filter frame 408 moves, the circular plate 503 below also switches to another second filter screen hole 5031 after the filter frame 408 moves a position, so that the hole type of the upper layer is BB, and the hole type of the lower layer is AB, (converted from AA, BA to BB, AB) still maintaining the state that the filter hole diameter of the first-stage filtration is larger, and the filter hole diameter of the second-stage filtration is smaller, so that the state of the two-stage coarse and fine filtration can be maintained, and the filtering effect is better.

[0022] Embodiment 3

[0023] Referring Figures 1-8 The difference between the embodiment and embodiment 2 is that the mounting rack 401 is fixed above the solid waste collecting tank 2 through the second support 4, the driving pulley 402, the driven pulley 404 and the tension pulley 405 are respectively rotationally installed on the mounting rack 401, the circulating conveying belt 407 is sleeved outside the driving pulley 402, the driven pulley 404 and the tension pulley 405, the second rotating motor 403 is fixed on the mounting rack 401, the output shaft of the second rotating motor 403 is fixed with the driving pulley 402, a plurality of pressing pulleys 406 are rotationally installed on the mounting rack 401, the pressing pulleys 406 are located between the driving pulley 402 and the driven pulley 404, and the surface of the circulating conveying belt 407 is tightly contacted with the filter cylinder 3 through extrusion, and the tension pulley 405 is located above the solid waste collecting tank 2. The driving pulley 402, the driven pulley 404 and the tension pulley 405 can support the circulating conveying belt 407 into a triangle, and one of the angles is located directly above the solid waste collecting tank 2, when the filter frame 408 moves along with the circulating conveying belt 407, the filter frame 408 can be turned over and automatically pour the filtered solid waste into the solid waste collecting tank 2.

[0024] The upper side of the solid waste collecting tank 2 is provided with the filter frame cleaning mechanism 6, the filter frame cleaning mechanism 6 comprises a vertical support shaft 604, the vertical support shaft 604 is rotationally installed on the side of the solid waste collecting tank 2 away from the sewage treatment tank 1, and the top end of the vertical support shaft 604 is fixed with a rotary joint 602, one side of the rotary joint 602 is fixedly connected with a horizontal pipe 601, the lower side of the horizontal pipe 601 is provided with a cleaning brush 404, a plurality of cleaning liquid nozzles 405 are equidistantly distributed on the lower side of the horizontal pipe 601, the top end of the rotary joint 602 is rotationally connected with a cleaning liquid inlet pipe 603, the vertical support shaft 604 is driven to rotate by the third rotating motor 605, when the filter frame 408 is transferred by the circulating conveying belt 407, the third rotating motor 605 is controlled to drive the vertical support shaft 604 to rotate, so that the horizontal pipe 601 is transferred to one side, so that it will not block the filter frame 408, when the filter frame 408 moves to the cleaning position Figure 1 , the third rotating motor 605 is controlled to drive the vertical support shaft 604 to rotate, so that the horizontal pipe 601 is transferred to the position directly above the filter frame 408 and reciprocally rotates, the filter frame 408 is physically cleaned by the cleaning brush 404, and the filter hole is cleaned by spraying the cleaning liquid through the cleaning liquid nozzle 405, so that the residual solid waste can be effectively cleaned.

[0025] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In the present application, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixation" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0027] The control mode of the present application is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art, the power supply also belongs to the common knowledge in the art, and the present application is mainly used to protect mechanical devices, so the control mode and circuit connection of the present application will not be explained in detail.

[0028] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical solution and inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A used oil recovery system for an airport fuel farm sump comprising a sump treatment tank (1) characterised in that: The sewage treatment tank (1) is provided with a solid waste collecting tank (2) on one side, a filter cylinder (3) is fixed above the sewage treatment tank (1), a vertical notch (302) is formed on the side of the filter cylinder (3) close to the solid waste collecting tank (2), a circulating conveyor belt (407) is arranged on the side of the filter cylinder (3) away from the solid waste collecting tank (2), the surface of the circulating conveyor belt (407) is in close contact with the filter cylinder (3), a plurality of filter frames (408) are equidistantly distributed on the outer portion of the circulating conveyor belt (407), the circulating conveyor belt (407) can cyclically convey two adjacent filter frames (408) into the filter cylinder (3), the connecting portion of the filter cylinder (3) and the circulating conveyor belt (407) passes through the vertical notch (302), and a first filter mesh (4081) is formed on the filter frame (408).

2. An airport fuel farm sump waste oil recovery system according to claim 1 wherein: Two annular notches (301) are formed on the side of the filter cylinder (3) away from the solid waste collecting tank (2), a vertical connecting shaft (501) is rotatably installed above the sewage treatment tank (1) by a first support (5), two circular plates (503) are fixed to the outer portion of the vertical connecting shaft (501), and the two circular plates (503) correspond to the two annular notches (301) respectively.

3. A used oil recovery system for an airport fuel farm sump as defined in claim 2 wherein: Two through holes (5032) and two second filter meshes (5031) are formed on the circular plate (503), the through holes (5032) and the second filter meshes (5031) are arranged at intervals, the mesh positions of the two second filter meshes (5031) are A type and B type respectively, the first filter mesh (4081) also has A type and B type, and the filter frames (408) of the A type and B type first filter meshes (4081) are alternately distributed on the outer portion of the circulating conveyor belt (407).

4. The used oil recovery system for an airport fuel farm sump of claim 3, wherein: A first rotary motor (502) is fixed to the top end of the first support (5), and the output shaft of the first rotary motor (502) is fixed to the top end of the vertical connecting shaft (501).

5. The used oil recovery system for an airport fuel farm sump of claim 1, wherein: A mounting frame (401) is fixed to the upper portion of the solid waste collecting tank (2) by a second support (4), a driving pulley (402), a driven pulley (404) and a tension pulley (405) are rotatably installed on the mounting frame (401) respectively, and the circulating conveyor belt (407) is sleeved on the outer portions of the driving pulley (402), the driven pulley (404) and the tension pulley (405).

6. An airport fuel farm sump waste oil recovery system according to claim 5 wherein: A second rotary motor (403) is fixed to the mounting frame (401), the output shaft of the second rotary motor (403) is fixed to the driving pulley (402), a plurality of pressing pulleys (406) are rotatably installed on the mounting frame (401), the pressing pulleys (406) are located between the driving pulley (402) and the driven pulley (404), the surface of the circulating conveyor belt (407) is ensured to be in close contact with the filter cylinder (3) by extrusion, and the tension pulley (405) is located above the solid waste collecting tank (2).

7. A used oil recovery system for an airport fuel farm sump as defined in claim 6 wherein: The upper side of the solid waste collecting tank (2) is provided with a filter frame cleaning mechanism (6), which comprises a vertical support shaft (604) rotatably installed on the side of the solid waste collecting tank (2) away from the sewage treatment tank (1), and the top end of the vertical support shaft (604) is fixed with a rotary joint (602), one side of the rotary joint (602) is fixedly connected with a horizontal conduit (601), and the lower side of the horizontal conduit (601) is provided with a cleaning brush (404).

8. The used oil recovery system for an airport fuel farm sump of claim 7, wherein: A plurality of cleaning liquid nozzles (405) are equidistantly distributed below the horizontal conduit (601), the top end of the rotary joint (602) is rotatably connected with a cleaning liquid inlet pipe (603), and the vertical support shaft (604) is driven to rotate by a third rotary motor (605).

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