Oil-water separation device for emulsified oil wastewater

Abstract

The utility model discloses an oil-water separation device for emulsified oil wastewater, and relates to the technical field of oil-water separation. The emulsified oil wastewater oil-water separation device comprises a tank body with an opening in the upper surface, a main shaft is longitudinally arranged in the tank body, a fixing ring is connected to the inner wall of the tank body, through the arrangement of the main shaft, a shell and other structures, the main shaft drives a filter screen to rotate, grease on the surface of the filter screen moves towards a through opening, and the grease is scraped off by the through opening and moves towards the interior of the shell; compared with the prior art, the main shaft drives the filter screen to rotate, so that the grease on the surface of the filter screen is scraped into the shell, the surface of the filter screen is kept clean, the use of the filter screen is facilitated, the scraped grease is stored in the shell, and the grease in the shell is prevented from flowing out of the shell. The filter screen cannot be replaced due to excessive grease in a period of time, and the filter screen can be cleaned when much grease is stored in the shell.

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 emulsified oil wastewater. Background Technique

[0002] Emulsified oil wastewater refers to liquid waste generated in industrial production or other activities, in which a large amount of oil, fat and other organic substances are dissolved or suspended, making the wastewater present a state similar to an emulsion. This wastewater is mainly generated in industries such as printing and dyeing, machining, chemical engineering, and metal surface treatment.

[0003] Existing separation devices can adsorb and filter the oil and grease in wastewater through adsorption mesh strips. For example, Chinese Patent Application No. CN202320884558.5 discloses an oil-water separation device for treating oil-containing wastewater, including a support frame, a separation component is arranged on the support frame, the separation component includes a separation cylinder arranged on the top of the support frame, a rotatable rotating shaft is arranged in the separation cylinder, two rotating rings are arranged on the rotating shaft, a plurality of filter rods are circumferentially distributed on the outer sides of the two rotating rings along the axis of the rotating rings, and adsorption mesh strips are respectively arranged on each filter rod. A feeding port is opened on the top surface of the separation cylinder, and a discharging port is opened on the bottom surface of the separation cylinder.

[0004] When a large amount of oil and grease adheres to the surface of the adsorption mesh strips used in this device, the filtering effect of the adsorption mesh strips is easily affected. In order to ensure the filtering effect of the adsorption mesh strips, the adsorption mesh strips need to be cleaned frequently, which is not conducive to the use of the device. Content of the Utility Model

[0005] Technical Problem to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides an oil-water separation device for emulsified oil wastewater, which solves the problem that the filtering structure is easily affected by oil and grease and needs to be frequently replaced.

[0007] Technical Solution

[0008] To achieve the above objectives, the utility model is realized through the following technical solutions: an oil-water separation device for emulsified oil wastewater, including a tank body with an open upper surface, a main shaft is longitudinally arranged inside the tank body, a fixed ring is connected to the inner wall of the tank body, the outer ring is rotatably connected to the inside of the fixed ring, a filter screen is connected to the inside of the outer ring, the filter screen is annular, an inner ring is connected to the inside of the filter screen, the inner ring is connected to the main shaft, a shell is connected to the surface of the fixed ring, a through opening is opened on one side of the shell, the distance between the outer ring and the inner ring is the same as the length of the through opening, and a guide plate is connected to the through opening, and the side of the guide plate close to the shell is inclined upward.

[0009] Preferably, a scraping blade is connected to one side of the housing near the through port. The scraping blade corresponds to the position of the through port, and the upper surface of the scraping blade is an inclined surface.

[0010] Preferably, the outer ring and the inner ring are connected by a plurality of connecting rods.

[0011] Preferably, a through groove is provided on one side of the housing near the through port, and an oil filter screen is connected inside the through groove.

[0012] Preferably, two limiting rings are symmetrically connected to the inner side of the fixing ring, and the outer ring is located between the two limiting rings.

[0013] Preferably, an installation port is provided through the upper surface of the housing, a baffle is connected inside the installation port, and a bolt is threadedly connected through one side of the housing. One end of the bolt extends into the installation port and is threadedly connected to the baffle.

[0014] Preferably, the connecting rod is made of stainless steel.

[0015] Beneficial effects

[0016] The utility model provides an emulsified oil wastewater oil-water separation device, which has the following beneficial effects:

[0017] Through the structures such as the main shaft and the housing, the main shaft drives the filter screen to rotate, so that the grease on the surface of the filter screen moves towards the through port. The grease is scraped off by the through port and moves towards the inside of the housing. The grease enters the inside of the housing through the guide plate. The guide plate plays a limiting role at the through port to prevent the grease inside the housing from flowing out of the housing. Compared with the prior art, by driving the filter screen to rotate by the main shaft, the grease on the surface of the filter screen is scraped into the housing, keeping the surface of the filter screen clean, which is beneficial to the use of the filter screen. The scraped grease is stored in the housing, so that the filter screen does not need to be replaced due to excessive grease for a period of time, and only needs to be cleaned when there is more grease stored in the housing. Description of the drawings

[0018] Figure 1 It is a schematic structural diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the tank body of the utility model;

[0020] Figure 3 It is a schematic structural diagram of the fixing ring of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the housing of the utility model;

[0022] Figure 5 It is a schematic diagram of the lower surface of the filter screen of the utility model.

[0023] In the figure: 1, tank body; 2, main shaft; 3, fixed ring; 4, outer ring; 5, filter screen; 6, inner ring; 7, housing; 8, through port; 9, guide plate; 10, scraping blade; 11, connecting rod; 12, through groove; 13, oil filter screen; 14, limiting ring; 15, installation port; 16, baffle plate; 17, bolt. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , the present invention provides a technical solution: an emulsified oil wastewater oil-water separation device, including a tank body 1 with an open upper surface. A main shaft 2 is longitudinally arranged inside the tank body 1. A fixed ring 3 is connected to the inner wall of the tank body 1. The outer ring 4 is rotatably connected to the inner side of the fixed ring 3. A filter screen 5 is connected to the inner side of the outer ring 4. The filter screen 5 is annular. An inner ring 6 is connected to the inner side of the filter screen 5. The inner ring 6 is connected to the main shaft 2. A housing 7 is connected to the surface of the fixed ring 3. A through port 8 is opened on one side of the housing 7. The distance between the outer ring 4 and the inner ring 6 is the same as the length of the through port 8. A guide plate 9 is connected to the through port 8. The side of the guide plate 9 close to the housing 7 is inclined upward. The lower surface of the housing 7 is attached to the filter screen 5. A motor is longitudinally installed on the lower surface of the tank body 1. The lower end of the main shaft 2 penetrates the tank body 1 and is connected to the output shaft of the motor. An outlet is opened on the lower side of the outer surface of the tank body 1.

[0026] During operation, wastewater is injected into the tank body 1. The wastewater is filtered by the filter screen 5. The oil remains on the upper surface of the filter screen 5. The motor drives the main shaft 2 to rotate, so that the inner ring 6, the filter screen 5, and the outer ring 4 rotate. The oil on the surface of the filter screen 5 moves towards the through port 8. The oil is scraped off by the through port 8 and moves into the interior of the housing 7. Under the guiding action of the guide plate 9, the oil enters the interior of the housing 7. There is a distance between the side of the guide plate 9 away from the through port 8 and the lower side inside the housing 7. The guide plate 9 can play a limiting role to prevent the oil inside the housing 7 from flowing out through the through port 8.

[0027] Please refer to Figures 1-5 , the present invention provides a technical solution: a scraping blade 10 is connected to the side of the housing 7 close to the through port 8. The scraping blade 10 corresponds to the position of the through port 8. The upper surface of the scraping blade 10 is an inclined surface. The lower surface of the scraping blade 10 is attached to the filter screen 5.

[0028] During operation, due to the arrangement of the scraping blade 10, since the upper surface of the scraping blade 10 is an inclined surface, it is beneficial for the scraping blade 10 to scrape off the oil on the upper surface of the filter screen 5 and for the oil to enter the housing 7 through the through port 8.

[0029] Please refer to Figures 1-5 , the present utility model provides a technical solution: the outer ring 4 and the inner ring 6 are connected by a plurality of connecting rods 11, and the upper surface of the connecting rod 11 is attached to the filter screen 5.

[0030] During operation, through the arrangement of the connecting rod 11, the overall stability of the outer ring 4, the filter screen 5, and the inner ring 6 can be improved.

[0031] Please refer to Figures 1-5 , the present utility model provides a technical solution: a through groove 12 is opened on one side of the housing 7 close to the through port 8, a filter oil net 13 is connected inside the through groove 12, the lower side inside the through groove 12 is at the same height as the lower side inside the housing 7, and one side of the guide plate 9 close to the through groove 12 is bent upward.

[0032] During operation, through the arrangement of the through groove 12, the wastewater entering the housing 7 can be discharged from the through groove 12, and the height of the wastewater poured on the filter screen 5 should not exceed the height of the upper end of the guide plate 9 to prevent a large amount of wastewater from entering the housing 7 and causing the wastewater to not be discharged from the through groove 12 in time.

[0033] Please refer to Figures 1-5 , the present utility model provides a technical solution: two limiting rings 14 are symmetrically connected to the inside of the fixing ring 3, the outer ring 4 is located between the two limiting rings 14, and the outer ring 4 is slidably connected to the surface of the limiting ring 14.

[0034] During operation, through the arrangement of the limiting ring 14, the outer ring 4 can be supported and limited, making the rotation process of the outer ring 4 more stable.

[0035] Please refer to Figures 1-5 , the present utility model provides a technical solution: an installation opening 15 is penetrated and opened on the upper surface of the housing 7, a baffle 16 is connected inside the installation opening 15, and one side of the housing 7 is penetrated and threadedly connected with a bolt 17, and one end of the bolt 17 extends into the installation opening 15 and is threadedly connected with the baffle 16.

[0036] During operation, through the arrangement of the bolt 17 and the baffle 16, when there is more grease in the housing 7, the baffle 16 can be removed to facilitate the cleaning of the grease.

[0037] Please refer to Figures 1-5 , the present utility model provides a technical solution: the connecting rod 11 is made of stainless steel.

[0038] During operation, the stainless steel connecting rod 11 has better corrosion resistance and strength, which is beneficial to the long-term use of the connecting rod 11.

[0039] In summary, wastewater is injected into the tank body 1, and the wastewater is filtered by the filter screen 5. The grease remains on the upper surface of the filter screen 5. The motor drives the main shaft 2 to rotate, causing the inner ring 6, the filter screen 5, and the outer ring 4 to rotate. The grease on the surface of the filter screen 5 moves towards the through port 8. The grease is scraped off by the scraping blade 10 and moves towards the inside of the housing 7. Under the guiding action of the guiding plate 9, the grease enters the inside of the housing 7. There is a distance between the side of the guiding plate 9 away from the through port 8 and the lower side inside the housing 7. The guiding plate 9 can play a limiting role to prevent the grease inside the housing 7 from flowing out through the through port 8. When there is more grease in the housing 7, the baffle 16 can be removed to facilitate the cleaning of the grease.

[0040] It should be noted that in this article, 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 terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-water separation device for emulsified oil wastewater, comprising a tank body (1) with an opening on the upper surface, characterized in that: A main shaft (2) is longitudinally arranged inside the tank body (1), and a fixing ring (3) is connected to the inner wall of the tank body (1). The inner side of the fixing ring (3) is rotatably connected to an outer ring (4), and a filter screen (5) is connected to the inner side of the outer ring (4). The filter screen (5) is annular, and an inner ring (6) is connected to the inner side of the filter screen (5). The inner ring (6) is connected to the main shaft (2). The surface of the fixing ring (3) is connected to a shell (7), and a through opening (8) is provided on one side of the shell (7). The spacing between the outer ring (4) and the inner ring (6) is the same as the length of the through opening (8). A guide plate (9) is connected to the through opening (8), and the guide plate (9) is inclined upward on the side close to the shell (7).

2. The oil-water separation device for emulsified oil wastewater according to claim 1, characterized in that: A scraper (10) is connected to one side of the housing (7) close to the through opening (8); the scraper (10) corresponds to the through opening (8) in position, and the upper surface of the scraper (10) is an inclined surface.

3. The oil-water separation device for emulsified oil wastewater according to claim 1, characterized in that: The outer ring (4) and the inner ring (6) are connected via a plurality of connecting rods (11).

4. The oil-water separation device for emulsified oil wastewater according to claim 1, characterized in that: A through groove (12) is provided on one side of the housing (7) close to the through opening (8), and an oil filter (13) is connected inside the through groove (12).

5. The oil-water separation device for emulsified oil wastewater according to claim 1, characterized in that: Two limiting rings (14) are symmetrically connected to the inner side of the fixing ring (3), and the outer ring (4) is located between the two limiting rings (14).

6. The oil-water separation device for emulsified oil wastewater according to claim 1, characterized in that: The upper surface of the shell (7) is provided with a mounting opening (15), the mounting opening (15) is internally connected to a baffle (16), and one side of the shell (7) is threadedly connected to a bolt (17), one end of the bolt (17) extends into the mounting opening (15) and is threadedly connected to the baffle (16).

7. The oil-water separation device for emulsified oil wastewater according to claim 3, characterized in that: The connecting rod (11) is made of stainless steel.

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