Oily sewage treatment device

Abstract

The utility model discloses an oily sewage treatment device and relates to the technical field of sewage treatment. Comprising an air floatation tank; the bottom of the aeration assembly is fixedly connected with the inner wall of the bottom of the air floatation tank, and the aeration assembly is used for injecting tiny bubbles into the oily sewage; the bottom of the separating device is fixedly connected with the inner wall of the bottom of the air floatation tank, and the separating device comprises an adjusting assembly.By arranging the separating device and a mounting frame and a filter frame in the slag scraping assembly, scum can be contained, a sliding sleeve is rotated to drive the mounting frame to rotate, the scum on the water surface is accurately scraped into the filter frame, and the scum on the water surface is accurately scraped into the filter frame; the adjusting assembly can automatically adjust the position of the separation device according to the change of the water level in the air floatation tank, it is ensured that the water level of the separation device is consistent with the water level of the oily sewage all the time, the stability of the separation effect is ensured, and the purpose of the oily sewage treatment device is achieved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an oily wastewater treatment device. Background Technology

[0002] In the field of oily wastewater treatment, efficient separation of oil and water has always been an important issue. Traditional methods for treating oily wastewater often have many problems and are difficult to meet the requirements of modern industry and environmental protection.

[0003] Traditional treatment methods lack effective means to cope with water level changes during the oil-water separation process. When the water level in the flotation tank fluctuates, the separation device cannot adjust its position accordingly, resulting in unstable separation performance and affecting the quality of wastewater treatment. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: an oily wastewater treatment device, comprising: a flotation tank; an aeration assembly, the bottom of which is fixedly connected to the inner wall of the bottom of the flotation tank, the aeration assembly being used to inject tiny air bubbles into the oily wastewater; a separation device, the bottom of which is fixedly connected to the inner wall of the bottom of the flotation tank, the separation device being used to separate scum from the oily wastewater; the separation device includes an adjustment assembly, the bottom of which is fixedly connected to the inner wall of the bottom of the flotation tank, the adjustment assembly being used to adjust the water level of the separation device to be consistent with the water level of the oily wastewater. The outer wall of the adjusting component is slidably connected to a slag scraping component, which is used to collect scum on oily wastewater; the adjusting component includes a limiting post, the outer wall of which is slidably connected to a sliding sleeve, the outer wall of which is slidably connected to an adjusting sleeve, the inner wall of which is slidably connected to a limiting shell, the outer wall of the top of which is fixedly connected to a spring ring, the spring ring including a fixing ring and a spring bar, the top of which is fixedly connected to the outer wall of the fixing ring, the inner wall of which is slidably connected to a positioning shell via a limiting block, and the outer wall of the limiting block is fixedly connected to the inner wall of the limiting shell, and tension springs are fixedly connected to the outer walls on both sides of the positioning shell.

[0005] Preferably, the side of the tension spring away from the positioning shell is fixedly connected to the inner wall of the limiting shell, the outer wall of the limiting block is slidably connected to the inner wall of the positioning shell, the outer wall of the limiting shell is slidably connected to the outer wall of the limiting column, the bottom of the limiting column is fixedly connected to the inner wall of the bottom of the flotation tank, a circular groove is formed in the wall of the limiting column, and the circular groove is linearly arrayed along the central axis of the limiting column, the inner wall of the adjusting sleeve is slidably connected to the outer wall of the positioning shell through the limiting groove, and the limiting groove is formed in the wall of the adjusting sleeve, and the top of the adjusting sleeve is slidably connected to the bottom of the spring ring.

[0006] Preferably, the slag scraping assembly includes a mounting frame arranged in a ring along the central axis of the flotation tank. Magnets are fixedly connected to the inner wall of the mounting frame and arranged linearly along the outer wall of the mounting frame. A filter frame is slidably connected to the inner wall of the mounting frame, and magnets are also fixedly connected to the outer wall of the filter frame. The outer wall of the mounting frame is fixedly connected to the outer wall of the sliding sleeve.

[0007] Preferably, the aeration assembly includes an aeration shell, an aeration groove is formed in the wall of the aeration shell, and the aeration groove is arranged in a ring along the central axis of the aeration shell. An air inlet shell is fixedly connected to the inner wall of the aeration shell, an air inlet pipe is fixedly connected to the top of the air inlet shell, the outer wall of the air inlet shell is fixedly connected to the inner wall of the flotation tank, and the inner wall of the bottom of the flotation tank is fixedly connected to the bottom of the aeration shell.

[0008] The beneficial effects of this utility model are as follows:

[0009] 1. This utility model, by setting up a separation device, allows the mounting frame and filter frame in the scum scraping assembly to accommodate scum. By rotating the sliding sleeve, the mounting frame is rotated, and the scum on the water surface is accurately scraped into the filter frame, thus achieving the separation of oil and sewage. The adjustment component can automatically adjust the position of the separation device according to the water level changes in the flotation tank, ensuring that the separation device is always consistent with the water level of the oily sewage, thus guaranteeing the stability of the separation effect.

[0010] 2. This utility model injects air into oily wastewater in the form of tiny bubbles by setting an aeration component, which allows oil droplets and impurities to quickly float to the surface and form scum, thus improving the separation efficiency of oil and water. The magnets on the mounting frame and the filter frame attract each other, allowing the filter frame to be quickly installed and disassembled after the wastewater treatment is completed. This facilitates the cleaning and treatment of the scum in the filter frame and reduces maintenance costs. Attached Figure Description

[0011] Figure 1 This is the front view of this utility model;

[0012] Figure 2 This is a cross-sectional view of the present invention;

[0013] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0014] Figure 4 This is a schematic diagram of the positioning shell of this utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the adjusting sleeve of this utility model;

[0016] Figure 6 This is an exploded view of the slag scraping component of this utility model;

[0017] Figure 7 This is a schematic diagram of the structure of the aeration component of this utility model.

[0018] In the diagram: 1. Flotation tank; 2. Aeration assembly; 3. Separation device; 4. Adjustment assembly; 5. Sludge scraper assembly; 41. Limiting column; 42. Sliding sleeve; 43. Adjustment sleeve; 44. Limiting shell; 45. Spring ring; 46. Limiting block; 47. Positioning shell; 48. Tension spring; 49. Limiting groove; 51. Mounting frame; 52. Magnet; 53. Filter frame; 21. Aeration shell; 22. Aeration trough; 23. Air inlet shell. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0020] Please see Figure 1 - Figure 7 This utility model provides a technical solution: an oily wastewater treatment device, comprising: a flotation tank 1; an aeration component 2, the bottom of which is fixedly connected to the inner wall of the bottom of the flotation tank 1, the aeration component 2 being used to inject tiny air bubbles into the oily wastewater; a separation device 3, the bottom of which is fixedly connected to the inner wall of the bottom of the flotation tank 1, the separation device 3 being used to separate scum from the oily wastewater; the separation device 3 includes an adjustment component 4, the bottom of which is fixedly connected to the inner wall of the bottom of the flotation tank 1, the adjustment component 4 being used to adjust the water level of the separation device 3 to be consistent with the water level of the oily wastewater. The outer wall of the device is slidably connected to a slag scraper assembly 5, which is used to collect scum on the oily wastewater; the adjustment assembly 4 includes a limiting post 41, the outer wall of the limiting post 41 is slidably connected to a sliding sleeve 42, the outer wall of the sliding sleeve 42 is slidably connected to an adjustment sleeve 43, the inner wall of the sliding sleeve 42 is slidably connected to a limiting shell 44, and the outer wall of the top of the sliding sleeve 42 is fixedly connected to a spring ring 45. By grasping the adjustment sleeve 43 and sliding it towards the spring ring 45, the spring ring 45 is squeezed. After the limiting groove 49 on the adjustment sleeve 43 slides to the positioning shell 47, the position of the sliding sleeve 42 can be adjusted. The spring bar in the spring ring 45 is made of elastic material.

[0021] The inner wall of the limiting shell 44 is slidably connected to the positioning shell 47 via the limiting block 46, and the outer wall of the limiting block 46 is fixedly connected to the inner wall of the limiting shell 44. Tension springs 48 are fixedly connected to the outer walls on both sides of the positioning shell 47. The side of the tension spring 48 away from the positioning shell 47 is fixedly connected to the inner wall of the limiting shell 44. The outer wall of the limiting block 46 is slidably connected to the inner wall of the positioning shell 47. The outer wall of the limiting shell 44 is slidably connected to the outer wall of the limiting post 41. The bottom of the limiting post 41 is connected to the air flotation tank. The inner wall of the bottom is fixedly connected, and the inner wall of the adjusting sleeve 43 is slidably connected to the outer wall of the positioning shell 47 through the limiting groove 49. The limiting groove 49 is opened in the wall of the adjusting sleeve 43. The top of the adjusting sleeve 43 is slidably connected to the bottom of the spring ring 45. The spring ring 45 pushes the adjusting sleeve 43 downward, forcing the limiting groove 49 to disengage from the positioning shell 47, blocking the movement of the positioning shell 47, and causing the limiting shell 44 to be stuck between the sliding sleeve 42 and the limiting post 41, thereby limiting the position of the sliding sleeve 42.

[0022] The slag scraping assembly 5 includes a mounting frame 51, which is arranged in a ring along the central axis of the flotation tank 1. Magnets 52 are fixedly connected to the inner wall of the mounting frame 51, and the magnets 52 are arranged linearly along the outer wall of the mounting frame 51. A filter frame 53 is slidably connected to the inner wall of the mounting frame 51. The outer wall of the mounting frame 51 is fixedly connected to the outer wall of the sliding sleeve 42. When the mounting frame 51 is pulled out, since magnets 52 are fixed on both the mounting frame 51 and the filter frame 53 and attract each other, the filter frame 53 can be quickly installed.

[0023] The aeration assembly 2 includes an aeration shell 21, with aeration channels 22 formed in the wall of the aeration shell 21. The aeration channels 22 are arranged in a ring along the central axis of the aeration shell 21. An air inlet shell 23 is fixedly connected to the inner wall of the aeration shell 21. The outer wall of the air inlet shell 23 is fixedly connected to the inner wall of the flotation tank 1. The inner wall of the bottom of the flotation tank 1 is fixedly connected to the bottom of the aeration shell 21. Air enters the aeration shell 21 through the air inlet shell 23 and is then injected into the oily wastewater in the form of microbubbles from the aeration channels 22. These microbubbles combine with oil droplets and other impurities in the wastewater during their ascent.

[0024] Working principle:

[0025] The device mainly consists of an air flotation tank 1, an aeration assembly 2, and a separation device 3. Oily wastewater is first introduced into the air flotation tank 1, which serves as the main container for the entire treatment process and provides space for subsequent treatment stages.

[0026] The aeration component 2 is located at the bottom of the flotation tank 1, and its bottom is fixedly connected to the inner wall of the bottom of the flotation tank 1. The aeration component 2 includes an aeration shell 21, and aeration channels 22 arranged in a ring array are opened in the wall of the aeration shell 21. An air inlet shell 23 is fixedly connected to the inner wall of the aeration shell 21. Air enters the aeration shell 21 through the air inlet shell 23, and then is injected into the oily wastewater in the form of microbubbles from the aeration channels 22. These microbubbles combine with oil droplets and other impurities in the wastewater during the rising process, causing them to float to the surface and form scum.

[0027] The bottom of the separation device 3 is also fixedly connected to the inner wall of the bottom of the flotation tank 1, and is used to separate the scum on the oily wastewater. The separation device 3 includes an adjustment component 4 and a scum scraping component 5. The adjustment component 4 is mainly composed of a limiting column 41, a sliding sleeve 42, an adjusting sleeve 43, a limiting shell 44, and a spring ring 45. The limiting column 41 is fixed to the bottom of the flotation tank 1. The sliding sleeve 42 can slide on the outer wall of the limiting column 41. The outer wall of the sliding sleeve 42 is slidably connected to the adjusting sleeve 43. The inner wall of the sliding sleeve 42 is slidably connected to the limiting shell 44. The outer wall of the top of the sliding sleeve 42 is fixed with a spring ring 45. When the water level in the flotation tank 1 changes, the adjustment component 4 can adjust according to the water level to ensure that the separation device 3 is always consistent with the water level of the oily wastewater. The specific operation is as follows: When the water level changes, grasp the adjusting sleeve 43 and slide it towards the spring ring 45, squeezing the spring ring 45. After the limiting groove 49 on the adjusting sleeve 43 slides to the positioning shell 47, the position of the sliding sleeve 42 can be adjusted. During the sliding of the sliding sleeve 42, the limiting shell 44 slides along the limiting block 46 towards the positioning shell 47. The tension spring 48 assists the limiting shell 44 to reset. When the sliding sleeve 42 slides to the desired position, release the force on the adjusting sleeve 43. The spring ring 45 pushes the adjusting sleeve 43 downward, forcing the limiting groove 49 to disengage from the positioning shell 47, blocking the movement of the positioning shell 47, and causing the limiting shell 44 to be stuck between the sliding sleeve 42 and the limiting post 41, thereby limiting the position of the sliding sleeve 42 and adapting to changes in water level.

[0028] The scum scraping assembly 5 is used to collect scum on oily wastewater. The scum scraping assembly 5 includes a mounting frame 51, which is arranged in a circular array along the central axis of the flotation tank 1. The inner wall of the mounting frame 51 is fixedly connected with magnets 52 arranged in a linear array, and a filter frame 53 is also slidably connected to the inner wall. After the oily wastewater is aerated, scum floats on the water surface. At this time, rotating the sliding sleeve 42 will drive the mounting frame 51 to rotate, scraping the scum on the water surface into the filter frame 53, thereby achieving the separation of oil and wastewater. In addition, after the wastewater treatment is completed, the mounting frame 51 can be pulled out. Since the mounting frame 51 and the filter frame 53 are both fixed with magnets 52 and attract each other, the filter frame 53 can be quickly installed.

[0029] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An oily wastewater treatment device, characterized in that, include: Air flotation tank (1); Aeration component (2), the bottom of which is fixedly connected to the inner wall of the bottom of the flotation tank (1), the aeration component (2) is used to inject tiny air bubbles into the oily wastewater; Separation device (3), the bottom of the separation device (3) is fixedly connected to the inner wall of the bottom of the flotation tank (1), and the separation device (3) is used to separate the scum on the oily wastewater; The separation device (3) includes an adjustment component (4), the bottom of which is fixedly connected to the inner wall of the bottom of the flotation tank (1). The adjustment component (4) is used to adjust the separation device (3) to be consistent with the water level of the oily wastewater. The outer wall of the adjustment component (4) is slidably connected to a sludge scraping component (5), which is used to contain the scum on the oily wastewater. The adjustment component (4) includes a limiting post (41), a sliding sleeve (42) is slidably connected to the outer wall of the limiting post (41), an adjustment sleeve (43) is slidably connected to the outer wall of the sliding sleeve (42), a limiting shell (44) is slidably connected to the inner wall of the sliding sleeve (42), and a spring ring (45) is fixedly connected to the outer wall of the top of the sliding sleeve (42).

2. The oily wastewater treatment device according to claim 1, characterized in that: The inner wall of the limiting shell (44) is slidably connected to the positioning shell (47) via the limiting block (46), and the outer wall of the limiting block (46) is fixedly connected to the inner wall of the limiting shell (44). Tension springs (48) are fixedly connected to the outer walls on both sides of the positioning shell (47).

3. The oily wastewater treatment device according to claim 2, characterized in that: The side of the tension spring (48) away from the positioning shell (47) is fixedly connected to the inner wall of the limiting shell (44), the outer wall of the limiting block (46) is slidably connected to the inner wall of the positioning shell (47), the outer wall of the limiting shell (44) is slidably connected to the outer wall of the limiting column (41), and the bottom of the limiting column (41) is fixedly connected to the inner wall of the bottom of the flotation tank (1).

4. The oily wastewater treatment device according to claim 1, characterized in that: The inner wall of the adjusting sleeve (43) is slidably connected to the outer wall of the positioning shell (47) through the limiting groove (49), and the limiting groove (49) is opened in the wall of the adjusting sleeve (43). The top of the adjusting sleeve (43) is slidably connected to the bottom of the spring ring (45).

5. The oily wastewater treatment device according to claim 1, characterized in that: The slag scraping assembly (5) includes a mounting frame (51) arranged in a ring along the central axis of the flotation tank (1). A magnet (52) is fixedly connected to the inner wall of the mounting frame (51), and the magnet (52) is arranged linearly along the outer wall of the mounting frame (51). A filter frame (53) is slidably connected to the inner wall of the mounting frame (51), and the outer wall of the mounting frame (51) is fixedly connected to the outer wall of the sliding sleeve (42).

6. The oily wastewater treatment device according to claim 1, characterized in that: The aeration assembly (2) includes an aeration shell (21), an aeration groove (22) is provided in the wall of the aeration shell (21), and the aeration groove (22) is arranged in a ring along the central axis of the aeration shell (21). An air inlet shell (23) is fixedly connected to the inner wall of the aeration shell (21), and the outer wall of the air inlet shell (23) is fixedly connected to the inner wall of the flotation tank (1). The inner wall of the bottom of the flotation tank (1) is fixedly connected to the bottom of the aeration shell (21).

Images