Oil-water separation device for oily sewage treatment

Abstract

The utility model relates to an oil-water separation device for oil-containing sewage treatment, which belongs to the technical field of oil-water separation and comprises a separation box, a heating plate is arranged on the separation box, an oil scraping mechanism for scraping oil is arranged on the separation box, a collecting and secondary filtering mechanism matched with the oil scraping mechanism is arranged on the right side of the separation box, and the heating plate and the oil scraping mechanism are arranged on the right side of the separation box. A first filtering plate inclining rightwards is arranged on the inner wall of the separating box, a sewage collecting mechanism is arranged on the left side of the separating box, and a water inlet pipe is fixedly connected to the left side of the separating box. The oil-water separation device for oily sewage treatment solves the problems that when oily sewage is treated, only one-time treatment and separation are carried out, sewage cannot be uniformly and cleanly treated through one-time separation, oil stains are not separated in flowing direction, oil stain residues are caused, the treatment is not uniform enough during oily sewage treatment, and the oil stains cannot be separated. Therefore, the problem that the oily water treatment effect is poor and the efficiency is not high is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-water separation, in particular to an oil-water separation device for treating oily sewage. Background Technique

[0002] Oil wastewater treatment generally includes primary treatment and secondary treatment. Primary treatment is to separate free oil, dispersed oil and oil sludge from water and emulsified oil. Secondary treatment is to break the oil-water emulsion and separate the remaining oil. Temperature is also a way to accelerate the treatment during the process. Hot water has a higher temperature, which makes the movement of oil droplet molecules faster, thus making it more conducive to separating the oil droplet molecules from the surface of the object. This is why hot water can more easily remove oil stains.

[0003] Please refer to a temperature-controlled oily sewage treatment device with the patent number CN217600418U. In this device, during the process of separating oily sewage, two heating plates heat the water in the water storage layer, thereby heating the separation tank evenly, which can effectively prevent the oily sewage in the separation tank from solidifying. At this time, the temperature sensor detects the temperature of the water in the water storage layer to detect the temperature of heating the separation tank. If the temperature sensor detects that the temperature of the water in the water storage layer is lower than or higher than the set temperature, the controller controls the two heating plates to operate or stop heating, thereby controlling the temperature in the separation tank by controlling the temperature in the water storage layer to achieve the effect of temperature self-control during water-oil separation. However, in the above patent, currently, when treating oily sewage, there is only one treatment and separation. One separation is not enough to evenly treat the sewage cleanly. The flow direction of the oil stain is not separated, which will cause oil stain residue. All these will lead to uneven treatment during the treatment of oily sewage, thus affecting the poor treatment effect and low efficiency of oily sewage treatment. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an oil-water separation device for treating oily sewage, which has the advantages of double separation, etc., and solves the problems that when treating oily sewage, there is only one treatment and separation. One separation is not enough to evenly treat the sewage cleanly. The flow direction of the oil stain is not separated, which will cause oil stain residue. All these will lead to uneven treatment during the treatment of oily sewage, thus affecting the poor treatment effect and low efficiency of oily sewage treatment.

[0005] To achieve the above object, the present utility model provides the following technical solutions: An oil-water separation device for treating oily sewage, including a separation tank, a heating plate is arranged on the separation tank, a scraping mechanism for scraping oil is arranged on the separation tank, a collecting and secondary filtering mechanism cooperating with the scraping mechanism is arranged on the right side of the separation tank, a first filtering plate inclined to the right is arranged on the inner wall of the separation tank, a sewage collecting mechanism is arranged on the left side of the separation tank, a water inlet pipe is fixedly connected to the left side of the separation tank, connecting pipes for connecting with the separation tank are arranged on both the sewage collecting mechanism and the collecting and secondary filtering mechanism, the inner bottom wall of the separation tank is a bottom wall inclined to the left, and a blanking member is arranged on the collecting and secondary filtering mechanism;

[0006] The scraping mechanism includes a U-shaped connecting cover fixedly connected to the separation tank, an electric slide rail is fixedly connected to the inner top wall of the U-shaped connecting cover, an electric push rod is slidably connected to the electric slide rail, a connecting rod is fixedly connected to the output end of the electric push rod, and an oil-absorbing sponge block is threadedly connected to the bottom of the connecting rod.

[0007] Further, valves are connected to the outer sides of the connecting pipes, a sliding groove is arranged on the top of the separation tank, and the connecting rod is slidably connected to the separation tank through the sliding groove.

[0008] Further, the heating plate is located on the inner wall of the separation tank, and the first filtering plate is arranged between the left and right inner walls of the separation tank.

[0009] Further, the sewage collecting mechanism includes a sewage tank, an oil filtering plate and a drain pipe. The sewage tank is fixedly connected to the connecting pipe, the oil filtering plate is slidably connected to the inner wall of the sewage tank, and the drain pipe is installed on the left side of the sewage tank.

[0010] Further, the collecting and secondary filtering mechanism includes a partition plate, a U-shaped porous frame and a collecting bin. The partition plate is of a porous structure and is located inside the collecting bin, and the U-shaped porous frame is located inside the partition plate.

[0011] Further, the blanking member includes a storage bin, oil-absorbing cotton balls, an electric stirring shaft and a feed pipe. The storage bin is located on the top of the collecting and secondary filtering mechanism, the number of the oil-absorbing cotton balls is multiple, and the electric stirring shaft is located at the center of the storage bin.

[0012] Further, a blanking port communicating with the collecting and secondary filtering mechanism is arranged at the bottom of the storage bin.

[0013] Further, a movable door is arranged on the front of the collecting and secondary filtering mechanism, and the U-shaped porous frame is used for loading oil-absorbing cotton balls.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] The oil-water separation device for treating oily sewage sucks the oil stains on the surface through the movable oil-absorbing sponge blocks provided, and sends them to another box body, allowing the oil in the oily sewage to flow out through a channel, and then performing secondary filtration after flowing out. At the same time, the sewage filtered once also enters another chamber for secondary filtration, diverting sewage at different levels for different treatments. At the same time, double filtration and separation can improve the uniformity of oil separation, and the separation is carried out by using an inclined surface or inner wall to change the flow direction of water and enter different box bodies respectively, solving the problems that when treating oily sewage, there is only one treatment and separation, one separation is not enough to evenly treat the sewage cleanly, the flow direction of the oil stains is not separated, resulting in oil stain residues, all of which will lead to uneven treatment during oil sewage treatment, thus affecting the poor treatment effect and low efficiency of oil sewage treatment. Brief Description of the Drawings

[0016] Figure 1 It is a structural cross-sectional view of the present utility model;

[0017] Figure 2 It is a schematic structural view of the storage bin of the present utility model;

[0018] Figure 3 It is a three-dimensional view of a partial structure of the present utility model.

[0019] In the figure: 1. Separation box; 2. U-shaped connection cover; 3. Electric slide rail; 4. Electric push rod; 5. Heating plate; 6. Connecting rod; 7. Oil-absorbing sponge block; 8. First filter plate; 9. Water inlet pipe; 10. Sewage collection mechanism; 101. Drain pipe; 102. Sewage tank; 103. Oil filter plate; 11. Connecting pipe; 12. Collection secondary filtration mechanism; 1201. Collection bin; 1202. Partition plate; 1203. U-shaped porous frame; 13. Feeding part; 1301. Storage bin; 1302. Oil-absorbing cotton ball; 1303. Feed pipe; 1304. Electric stirring shaft. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-3, An oil-water separation device for treating oily sewage in this embodiment includes a separation tank 1. The front of the separation tank 1 is transparent, and a movable door is provided on the front. A heating plate 5 is provided on the separation tank 1. A scraping mechanism for scraping oil is provided on the separation tank 1. A collecting secondary filtration mechanism 12 that cooperates with the scraping mechanism is provided on the right side of the separation tank 1. A first filter plate 8 that slopes to the right is provided on the inner wall of the separation tank 1. The heating plate 5 is located on the inner wall of the separation tank 1. The first filter plate 8 is arranged between the left and right inner walls of the separation tank 1. It is convenient to use the first filter plate 8 to separate oil and grease for the first time during use. A sewage collection mechanism 10 is provided on the left side of the separation tank 1.

[0022] The sewage collection mechanism 10 includes a sewage tank 102, an oil filter plate 103, and a drain pipe 101. The sewage tank 102 is fixedly connected to a connecting pipe 11. The oil filter plate 103 is slidably connected to the inner wall of the sewage tank 102. The drain pipe 101 is installed on the left side of the sewage tank 102. It is convenient to use the oil filter plate 103 to perform secondary filtration and then discharge the sewage during use, facilitating subsequent treatment.

[0023] A water inlet pipe 9 is fixedly connected to the left side of the separation tank 1. Connecting pipes 11 for connecting to the separation tank 1 are provided on both the sewage collection mechanism 10 and the collecting secondary filtration mechanism 12. The inner bottom wall of the separation tank 1 is a bottom wall that slopes to the left. A blanking member 13 is provided on the collecting secondary filtration mechanism 12.

[0024] The collecting secondary filtration mechanism 12 includes a partition plate 1202, a U-shaped porous frame 1203, and a collection bin 1201. The partition plate 1202 is a porous structure and is located inside the collection bin 1201. The U-shaped porous frame 1203 is located inside the partition plate 1202. It is convenient to use the partition plate 1202 and the U-shaped porous frame 1203 to perform secondary filtration during use. A movable door is provided on the front of the collecting secondary filtration mechanism 12. The U-shaped porous frame 1203 is used to hold oil-absorbing cotton balls 1302.

[0025] The blanking member 13 includes a storage bin 1301, oil-absorbing cotton balls 1302, an electric stirring shaft 1304, and a feed pipe 1303. The storage bin 1301 is located at the top of the collecting secondary filtration mechanism 12. The number of oil-absorbing cotton balls 1302 is multiple. The electric stirring shaft 1304 is located at the center of the storage bin 1301. It is convenient to use the electric stirring shaft 1304 to perform stirring and blanking during use so that the oil-absorbing cotton balls 1302 can be normally blanked to absorb the oil and grease in the sewage. A blanking port communicating with the collecting secondary filtration mechanism 12 is provided at the bottom of the storage bin 1301. It is convenient for the oil-absorbing cotton balls 1302 to enter the inside of the collecting secondary filtration mechanism 12 through the blanking port during use to absorb the oil and grease.

[0026] The oil scraping mechanism includes a U-shaped connecting cover 2 fixedly connected to the separation tank 1. The inner top wall of the U-shaped connecting cover 2 is fixedly connected with an electric slide rail 3. An electric push rod 4 is slidably connected to the electric slide rail 3. The output end of the electric push rod 4 is fixedly connected with a connecting rod 6. The bottom of the connecting rod 6 is threadedly connected with an oil-absorbing sponge block 7. Valves are connected to the outer sides of the connecting pipes 11. A sliding groove is provided at the top of the separation tank 1. The connecting rod 6 is slidably connected to the separation tank 1 through the sliding groove, which facilitates the electric slide rail 3 to drive the electric push rod 4 to make the connecting rod 6 slide inside the separation tank 1 during use. When sliding, it drives the oil-absorbing sponge block 7 to absorb the floating oil stains, and at the same time, the height of the oil stains at the top can be adjusted according to the height of the water during absorption.

[0027] The working principle of the above embodiment is as follows:

[0028] During processing, the oily sewage enters the inside of the separation tank 1 from the water inlet pipe 9. Then, when the heating plate 5 is used to heat the oily sewage, the water will first reach the boiling point and start to boil. This boiling effect will push the oil out of the water and make it float on the water surface. As the heating continues, this separation effect will become more obvious. After heating, after the staff preset ten minutes or twenty minutes according to the heating time, the electric slide rail 3 is started to drive the electric push rod 4 to move left and right and stretch, so as to drive the oil-absorbing sponge block 7 on the connecting rod 6 to clean the oil stains on the surface of the oily sewage, and separate them to the secondary filtration mechanism 12 through the connecting pipe 11;

[0029] In addition to the filtration by the partition plate 1202 and the U-shaped porous frame 1203 provided in the secondary filtration mechanism 12 for collection, the electric stirring shaft 1304 can also be started to stir, so that the oil-absorbing cotton balls 1302 fall to adsorb the oil stains on the inner surface of the collection bin 1201 again. After the adsorption is completed, post-treatment is carried out.

[0030] The sewage filtered by the first filter plate 8 flows into the inside of the sewage tank 102 after passing through the separation tank 1, and is filtered again by the oil filter plate 103 before being discharged, completing the oil-water separation and flowing out through separate channels.

[0031] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0032] Although embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An oil-water separation device for treating oily wastewater, comprising a separation box (1), characterized in that: The separation box (1) is provided with a heating plate (5), the separation box (1) is provided with an oil scraping mechanism for scraping oil, the right side of the separation box (1) is provided with a collecting secondary filtering mechanism (12) matched with the oil scraping mechanism, the inner wall of the separation box (1) is provided with a first filtering plate (8) inclined to the right, the left side of the separation box (1) is provided with a sewage collecting mechanism (10), the left side of the separation box (1) is fixedly connected with a water inlet pipe (9), the sewage collecting mechanism (10) and the collecting secondary filtering mechanism (12) are both provided with a connecting pipe (11) for connecting with the separation box (1), the inner bottom wall of the separation box (1) is a bottom wall inclined to the left, and the collecting secondary filtering mechanism (12) is provided with a material discharge piece (13); The oil scraping mechanism comprises a U-shaped connection cover (2) fixedly connected to the separation box (1); an inner top wall of the U-shaped connection cover (2) is fixedly connected to an electric slide rail (3); an electric push rod (4) is slidably connected to the electric slide rail (3); an output end of the electric push rod (4) is fixedly connected to a connecting rod (6); and an oil absorbing sponge block (7) is threadedly connected to the bottom of the connecting rod (6).

2. The oil-water separation device for treating oily wastewater according to claim 1, characterized in that: The outer sides of the connecting pipes (11) are connected to valves, the top of the separation box (1) is provided with a sliding groove, and the connecting rod (6) is slidably connected to the separation box (1) via the sliding groove.

3. The oil-water separation device for treating oily wastewater according to claim 1, characterized in that: The heating plate (5) is located on the inner wall of the separation box (1), and the first filter plate (8) is arranged between the left and right inner walls of the separation box (1).

4. The oil-water separation device for treating oily wastewater according to claim 1, characterized in that: The sewage collection mechanism (10) comprises a sewage tank (102), an oil filter plate (103) and a drainage pipe (101). The sewage tank (102) is fixedly connected to the connecting pipe (11), the oil filter plate (103) is slidably connected to the inner wall of the sewage tank (102), and the drainage pipe (101) is installed on the left side of the sewage tank (102).

5. The oil-water separation device for treating oily wastewater according to claim 1, characterized in that: The collecting secondary filtration mechanism (12) comprises a partition plate (1202), a U-shaped porous frame (1203) and a collecting bin (1201); the partition plate (1202) is a porous structure and is located on the inner side of the collecting bin (1201); and the U-shaped porous frame (1203) is located on the inner side of the partition plate (1202).

6. The oil-water separation device for treating oily wastewater according to claim 5, characterized in that: The unloading member (13) comprises a storage bin (1301), an oil-absorbing cotton ball (1302), an electric stirring shaft (1304) and a feeding pipe (1303); the storage bin (1301) is located at the top of the collecting secondary filtering mechanism (12); the number of the oil-absorbing cotton ball (1302) is multiple; and the electric stirring shaft (1304) is located at the exact center of the storage bin (1301).

7. The oil-water separation device for treating oily wastewater according to claim 6, characterized in that: The bottom of the storage bin (1301) is provided with a discharge port connected to the collecting secondary filtering mechanism (12).

8. The oil-water separation device for treating oily wastewater according to claim 5, characterized in that: The front of the collecting secondary filtering mechanism (12) is provided with a movable door, and the U-shaped porous frame (1203) is used to hold the oil-absorbing cotton balls (1302).

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