Oil-water separation recycling equipment

Abstract

The utility model discloses a kind of oil-water separation recycling equipment, it is related to oil-water separation technical field, including sedimentation separation tank, first baffle is fixedly connected with in the inside middle position of sedimentation separation tank, second baffle is fixedly connected with in the first baffle right side of sedimentation separation tank bottom surface, sedimentation separation tank is divided into deslagging area and oil removal area by first baffle and second baffle, cleaning port is set in the top surface of sedimentation separation tank at deslagging area and oil removal area position, mounting plate is fixedly connected with in the inside middle position of deslagging area, placing hole is set in the middle part of mounting plate, residue basket is detachably connected with in the inside of placing hole. Advantage lies in: the utility model is by setting deslagging area, oil removal area respectively in sedimentation separation tank, optimize the overall equipment layout, and independently cleaning port is set in the top surface of sedimentation separation tank for deslagging area, oil removal area respectively, match the cover that can be conveniently disassembled, opening cover can directly contact two area inside.

Description

Technical Field

[0001] This utility model relates to the field of oil-water separation technology, specifically to an oil-water separation and recycling device. Background Technology

[0002] An oil-water separator is a device that comes in two types: catering oil-water separators and industrial oil-water separators. Catering oil-water separators are used by the catering industry to treat wastewater; industrial oil-water separators were developed due to environmental protection requirements, as wastewater must be treated by separating oil and water before being discharged into rivers, lakes, or seas.

[0003] For example, Chinese Patent (CN223248867U) discloses an oil-water separation and recycling device, including a sedimentation separation tank and a filter box connected to the sedimentation separation tank via a connecting pipe. One end of the filter box is fixedly connected to an inlet pipe, and a gas-liquid mixing pump is installed on the connecting pipe. An oil suction pump is installed at the upper end of the sedimentation separation tank, and a heating rod is embedded on the upper end of the sedimentation separation tank near the oil suction pump. A drain pipe is connected to the outer end of the sedimentation separation tank away from the connecting pipe, and a vortex drum is installed inside the sedimentation separation tank. This invention uses a filter basket in the filter box to trap large solid particles in the oil-water mixture. The filter basket can be easily removed from the filter box to empty the impurities. A steel wire brush in the cleaning component can be used to clean one side of the filter basket, effectively preventing blockage and ensuring smooth flow of the oil-water mixture.

[0004] In existing technologies, no comprehensive cleaning channel is clearly defined. After oil-water separation, sludge and impurities still remain inside the equipment. It is necessary to shut down the equipment and then disassemble the filter box and sedimentation separation tank in sequence to completely remove the oil stains attached to the inner wall. In addition, there are always some dead corners on the hydrocyclone that are difficult to clean. This will increase the cleaning time required for the equipment and reduce the ease of cleaning. To address the above problems, an oil-water separation and recycling equipment is proposed to solve the problem. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an oil-water separation and recycling device, which solves the problem that the current device does not have a clearly defined all-area cleaning channel. After oil-water separation, oil sludge and impurities will still remain inside the device. The device needs to be shut down and the filter box and sedimentation separation tank need to be disassembled in sequence to completely remove the oil stains attached to the inner wall. In addition, there are always some dead corners on the hydrocyclone that are difficult to clean. This will result in a longer cleaning time and lower cleaning convenience.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an oil-water separation and recycling device, comprising a sedimentation separation tank, wherein a first partition is fixedly connected to the middle position inside the sedimentation separation tank, and a second partition is fixedly connected to the right side of the first partition on the bottom surface of the sedimentation separation tank, wherein the sedimentation separation tank is divided into a slag removal zone and an oil removal zone by the first partition and the second partition, and a cleaning port is provided on the top surface of the sedimentation separation tank at the positions of the slag removal zone and the oil removal zone, wherein an installation plate is fixedly connected to the middle position inside the slag removal zone, and a placement hole is provided in the middle of the installation plate, wherein a slag lifting basket is detachably connected inside the placement hole.

[0007] Preferably, each of the two cleaning ports is fitted with a cover plate, and each of the two cover plates is fixedly connected to the upper center of the cover plate. Each of the two cover plates is detachably connected to a placement basket at the bottom center, and the placement basket contains activated carbon for odor adsorption.

[0008] Preferably, heating rods for heating are fixedly connected to the front side of the sedimentation separation tank at the positions of the slag removal zone and the oil removal zone, and bimetallic thermometers for detecting the temperature of the slag removal zone and the oil removal zone are fixedly installed on the lower left and right sides of the sedimentation separation tank.

[0009] Preferably, an oil outlet weir is fixedly connected to the upper right side inside the oil removal zone, and a connecting pipe is fixedly connected to the front side of the oil outlet weir. An oil collection tank is detachably connected to the end of the connecting pipe.

[0010] Preferably, an inlet pipe is fixedly connected to the left side of the sedimentation separation tank above the mounting plate, and an outlet pipe is fixedly connected to the upper right side of the sedimentation separation tank. The height of the outlet pipe is lower than the height of the oil weir.

[0011] Preferably, a level gauge is fixedly installed on the rear side of the sedimentation separation tank at the location of the oil removal zone, and sludge discharge pipes are fixedly connected to both sides of the second partition on the lower front side of the sedimentation separation tank. Inclined platforms are fixedly connected to the bottom surfaces inside the slag removal zone and the oil removal zone, and the two inclined platforms are inclined toward the sludge discharge pipes.

[0012] Preferably, the bottom of the first partition is 10cm to 18cm from the bottom of the sedimentation separation tank, the height of the second partition is 30cm to 35cm, and the distance between the first partition and the second partition is 5cm to 10cm.

[0013] Compared with the prior art, the advantages of this utility model are as follows: This utility model optimizes the overall equipment layout by setting up slag removal zone and oil removal zone separately inside the sedimentation separation tank. Independent cleaning ports are opened on the top surface of the sedimentation separation tank for the slag removal zone and oil removal zone, respectively, with easily removable covers. Opening the covers allows direct contact with the interior of the two zones for manual cleaning of stubborn sludge and residual impurities without disassembling the main equipment. This ensures thorough cleaning without dead angles and improves the cleaning coverage. Furthermore, the slag removal zone has a built-in removable slag-lifting basket, which directly intercepts large solid particles. During cleaning, there is no need to activate the cleaning components; simply open the cover of the slag removal zone's cleaning port, lift the slag-lifting basket from the placement hole to empty the slag, and then put it back. This shortens the cleaning time per slag removal cycle and completely avoids the hassle of "repeated cleaning due to filter basket blockage," significantly improving cleaning convenience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another perspective; Figure 3 This is a top view of the present invention; Figure 4 for Figure 3 A magnified view of a portion of point AA in the middle; Figure 5 This is a schematic diagram of the structure of the present invention with the cover plate removed; Figure 6 This is an exploded view of the mounting plate and slag basket in this utility model; Figure 7 for Figure 5 A magnified view of a portion of point P in the middle.

[0015] The numbers on the map are: 1. Sedimentation separation tank; 2. First baffle; 3. Second baffle; 4. Sludge removal zone; 5. Oil removal zone; 6. Mounting plate; 7. Placement hole; 8. Sludge lifting basket; 9. Water inlet pipe; 10. Water outlet pipe; 11. Oil sludge discharge pipe; 12. Heating rod; 13. Inclined platform; 14. Oil outlet weir; 15. Connecting pipe; 16. Oil collection tank; 17. Bimetallic thermometer; 18. Level gauge; 19. Cleaning port; 20. Cover plate; 21. Handle; 22. Placement basket. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0018] Reference Figure 1 - Figure 7 As shown, an oil-water separation and recycling device includes a sedimentation separation tank 1. A first baffle 2 is fixedly connected to the middle position inside the sedimentation separation tank 1. A second baffle 3 is fixedly connected to the bottom surface of the sedimentation separation tank 1 to the right side of the first baffle 2. The sedimentation separation tank 1 is divided into a slag removal zone 4 and an oil removal zone 5 by the first baffle 2 and the second baffle 3. A cleaning port 19 is opened on the top surface of the sedimentation separation tank 1 at the positions of the slag removal zone 4 and the oil removal zone 5. An installation plate 6 is fixedly connected to the middle position inside the slag removal zone 4. A placement hole 7 is opened in the middle of the installation plate 6. A slag removal basket 8 is detachably connected inside the placement hole 7. The mesh size of the slag removal basket 8 is about 1-5mm. Furthermore, the slag removal basket 8 can adopt a double-layer filtration form, with coarse filtration (3-5mm) to intercept solid impurities and fine filtration (1-2mm) to intercept suspended solids. The first baffle 2 and the second baffle 3 form a gravity-driven, self-flowing, stepped separation channel in the sedimentation separation tank 1, so that the oil-water mixture can complete the continuous treatment of slag removal and oil removal under non-powered conditions.

[0019] Furthermore, each of the two cleaning ports 19 is fitted with a cover plate 20. Each of the two cover plates 20 is fixedly connected to the upper center of the cover plate 20. Each of the two cover plates 20 is detachably connected to a placement basket 22 at the bottom center. The placement basket 22 contains activated carbon for odor adsorption. The activated carbon in the placement basket 22 can adsorb the odor generated during the separation process. The placement basket 22 is detachable. When the activated carbon is saturated, the placement basket 22 can be directly removed and replaced with new activated carbon without complicated operation. The placement basket 22 can be connected to the cover plate 20 by magnetic attraction or threaded buckle. A sealing ring (oil-resistant rubber, Shore A hardness 60A) is set between the cover plate 20 and the cleaning port 19.

[0020] Specifically, heating rods 12 are fixedly connected to the front side of the sedimentation separation tank 1 at the positions of the slag removal zone 4 and the oil removal zone 5. The power of the heating rods 12 is preferably 4kW. Bimetallic thermometers 17 for detecting the temperature of the slag removal zone 4 and the oil removal zone 5 are fixedly installed on the lower left and right sides of the sedimentation separation tank 1. The bimetallic thermometers 17 can be mechanical or electronic temperature sensors. In addition, a rock wool insulation layer can be attached to the outside of the sedimentation separation tank 1 to reduce heat loss.

[0021] Specifically, an oil outlet weir 14 is fixedly connected to the upper right side inside the oil removal zone 5. A connecting pipe 15 is fixedly connected to the front side of the oil outlet weir 14. An oil collection tank 16 is detachably connected to the end of the connecting pipe 15. The oil collection tank 16 collects the oil inside the oil outlet weir 14 through the connecting pipe 15, so as to facilitate the recycling of this oil. The oil outlet weir 14 is equipped with an automatic oil layer thickness adjustment device (such as a float valve or an ultrasonic level switch).

[0022] Specifically, an inlet pipe 9 is fixedly connected to the left side of the sedimentation separation tank 1 above the mounting plate 6, and an outlet pipe 10 is fixedly connected to the upper right side of the sedimentation separation tank 1. The height of the outlet pipe 10 is lower than the height of the oil weir 14. A level gauge 18 is fixedly installed at the oil removal zone 5 on the rear side of the sedimentation separation tank 1. Oil sludge discharge pipes 11 are fixedly connected to the lower front side of the sedimentation separation tank 1 on both sides of the second partition 3. Inclined platforms 13 are fixedly connected to the bottom surface inside the slag removal zone 4 and the oil removal zone 5. The inclination angle of the inclined platforms 13 is 5-8°, and the surface is coated with a Teflon anti-stick coating. The two inclined platforms 13 are tilted towards the oil sludge discharge pipes 11. Valves are installed on the oil sludge discharge pipes 11 and the outlet pipe 10. The deposited oil sludge automatically gathers to the discharge pipe position under the action of gravity. When cleaning, it is only necessary to open the valve of the oil sludge discharge pipe 11, and the oil sludge can be automatically discharged without manual scraping.

[0023] Specifically, the bottom of the first baffle 2 is 10cm to 18cm from the bottom of the sedimentation separation tank 1, the height of the second baffle 3 is 30cm to 35cm, and the distance between the first baffle 2 and the second baffle 3 is 5cm to 10cm, forming a buffer channel to reduce water flow disturbance and create a stable environment for oil-water stratification.

[0024] Working principle: The oil-water mixture to be treated is injected into the slag removal zone 4 of the sedimentation separation tank 1 through the inlet pipe 9. When the mixture flows through the slag removal zone 4, large solid particles are directly intercepted by the slag lifting basket 8, achieving "preliminary solid-liquid separation". After preliminary slag removal, the oil-water mixture slowly flows into the oil removal zone 5 through the gap between the bottom of the first baffle 2 and the bottom of the tank. The heating rods 12 of the slag removal zone 4 and the oil removal zone 5 are activated to heat the mixture. The temperature is monitored in real time by the bimetallic thermometer 17 and maintained at a suitable temperature. Heating can reduce the viscosity of the oil phase, break the interfacial tension between oil and water, and promote the rapid floating of oil droplets. The oil-water mixture settles and separates in the oil removal zone 5. The surface of the floating oil phase continues to rise. When it reaches the height of the oil outlet weir 14, the oil phase overflows through the oil outlet weir 14 to the connecting pipe 15, and finally flows into the detachable... The waste oil is collected in the oil collection tank 16 to achieve recycling and reuse. The water phase at the bottom is discharged through the water outlet pipe 10. The discharged water can be further treated for reuse or discharged in compliance with standards. During operation, the water level in the oil removal zone 5 is monitored in real time by the level gauge 18 on the back side of the sedimentation separation tank 1. When the water level is too high, the discharge speed can be adjusted through the water outlet pipe 10 to prevent the mixed liquid from overflowing. When the impurities in the sludge basket 8 are half full, the water inlet pipe 9 is closed, the cover plate 20 of the sludge removal zone 4 is opened, and the handle on the top of the sludge basket 8 is held to lift it out of the placement hole 7. After pouring out the internal impurities, it can be put back into the placement hole 7. The whole process does not require tools. The valve of the oil sludge discharge pipe 11 is opened periodically, and the oil sludge collected on the inclined platform 13 at the bottom of the sludge removal zone 4 and the oil removal zone 5 is automatically discharged through the oil sludge discharge pipe 11 under the action of gravity.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An oil-water separation and recycling device, characterized in that: The sedimentation separation tank (1) includes a sedimentation separation tank (1), a first partition (2) is fixedly connected to the middle position inside the sedimentation separation tank (1), a second partition (3) is fixedly connected to the bottom surface of the sedimentation separation tank (1) to the right side of the first partition (2), the sedimentation separation tank (1) is divided into a slag removal zone (4) and an oil removal zone (5) by the first partition (2) and the second partition (3), a cleaning port (19) is opened on the top surface of the sedimentation separation tank (1) at the positions of the slag removal zone (4) and the oil removal zone (5), an installation plate (6) is fixedly connected to the middle position inside the slag removal zone (4), a placement hole (7) is opened in the middle of the installation plate (6), and a slag lifting basket (8) is detachably connected inside the placement hole (7).

2. The oil-water separation and recycling equipment according to claim 1, characterized in that: Both cleaning ports (19) are fitted with cover plates (20) on their outer sides. Both cover plates (20) are fixedly connected to the upper center of their upper parts with handles (21). Both cover plates (20) are detachably connected to the center of their bottom surfaces with placement baskets (22). The placement baskets (22) contain activated carbon for odor adsorption.

3. The oil-water separation and recycling equipment according to claim 1, characterized in that: Heating rods (12) for heating are fixedly connected to the front side of the sedimentation separation tank (1) at the positions of the slag removal zone (4) and the oil removal zone (5). Bimetallic thermometers (17) for detecting the temperature of the slag removal zone (4) and the oil removal zone (5) are fixedly installed on the lower left and right sides of the sedimentation separation tank (1).

4. The oil-water separation and recycling equipment according to claim 1, characterized in that: An oil outlet weir (14) is fixedly connected to the upper right side inside the oil removal zone (5). A connecting pipe (15) is fixedly connected to the front side of the oil outlet weir (14). An oil collection tank (16) is detachably connected to the end of the connecting pipe (15).

5. The oil-water separation and recycling equipment according to claim 1, characterized in that: The sedimentation separation tank (1) has an inlet pipe (9) fixedly connected above the mounting plate (6) on the left side, and an outlet pipe (10) fixedly connected above the right side of the sedimentation separation tank (1). The height of the outlet pipe (10) is lower than the height of the oil weir (14).

6. The oil-water separation and recycling equipment according to claim 1, characterized in that: A level gauge (18) is fixedly installed on the rear side of the sedimentation separation tank (1) at the position of the oil removal zone (5). Oil sludge discharge pipes (11) are fixedly connected to the lower front side of the sedimentation separation tank (1) on both sides of the second partition (3). Inclined platforms (13) are fixedly connected to the bottom surface inside the slag removal zone (4) and the oil removal zone (5). The two inclined platforms (13) are inclined towards the oil sludge discharge pipes (11).

7. The oil-water separation and recycling equipment according to claim 1, characterized in that: The bottom of the first partition (2) is 10cm to 18cm from the bottom of the sedimentation separation tank (1), the height of the second partition (3) is 30cm to 35cm, and the distance between the first partition (2) and the second partition (3) is 5cm to 10cm.

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