Oil-water separation device for oil separation tank

Abstract

The utility model relates to the technical field of oil-water separation, and discloses an oil-water separation device for an oil separation tank, which comprises a base, the top of the base is fixedly connected with the oil separation tank, the bottom of the front surface of the oil separation tank is fixedly connected with a drainage pipe, the back surface of the oil separation tank is provided with a filtering mechanism, and the filtering mechanism comprises an L-shaped seat. The L-shaped seat is fixedly connected to the back surface of the oil separation tank, and the top of the L-shaped seat is fixedly connected with a fixed frame. A servo motor in the filtering mechanism drives a rotating shaft and a gear to rotate and is matched with a rack, so that a sliding sleeve, a first fixing frame, a lifting frame connected with the first fixing frame, a lifting frame and a filtering plate move up and down. The automatic adjusting function can flexibly adjust the position of the filter plate in the oil separation tank according to wastewater quality and treatment requirements, so that the filter plate is always in an optimal filtering state, and the overall oil-water separation efficiency is improved. For example, when the oil content in the wastewater is suddenly increased, the filter plate can be adjusted to be closer to the water inlet, and more oil drops can be intercepted in advance.

Description

Technical Field

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

[0002] In modern industrial production and daily life, the generation of oily wastewater is increasing daily, posing a serious threat to the environment. Whether it's petrochemicals, machinery processing, food and beverage industries, or urban sewage, all contain large amounts of oily substances. If this oily wastewater is discharged directly into water bodies without effective treatment, it will form an oil film on the water surface, hindering oxygen dissolution, causing aquatic life to die from lack of oxygen, and disrupting the aquatic ecological balance. At the same time, harmful substances in oil can accumulate in soil and water bodies, polluting groundwater and posing potential risks to the surrounding ecological environment and human health.

[0003] According to announcement number CN 215403241 U, an oil-water separator for wastewater treatment includes a shell, which is a hollow cuboid with an open top surface. An oil-water separation mechanism is provided inside the shell. The oil-water separation mechanism includes an observation plate, a sliding plate, a discharge pipe, and an upper sliding groove. The observation plate is embedded in the right side wall of the shell. The observation plate and the shell share an upper sliding groove. The sliding plate is slidably connected to the upper sliding groove. The discharge pipe passes through the discharge pipe and is fixedly connected to the sliding plate.

[0004] This device utilizes the physical properties of oil and water, with oil on top of the water. During oil discharge, a downward-pressing discharge pipe drives a sliding plate down into an upper trough, compressing a spring and lowering the liquid level above the discharge pipe. This allows for selective discharge of liquid. When oil needs to be discharged, the discharge pipe is pushed upwards to remove the upper layer of oil; when water needs to be discharged, the discharge pipe drives the sliding plate down into the upper trough to release the lower layer of water. This makes liquid discharge more convenient. The device uses the density difference between oil and water to cause oil droplets to float to the surface, achieving preliminary separation. However, this method has significant limitations. For dispersed and emulsified oils with smaller particle sizes, they are relatively stable in wastewater and difficult to separate quickly by simple gravity. This results in the treated water still containing a high concentration of oily substances, failing to meet increasingly stringent environmental emission standards. Utility Model Content

[0005] The purpose of this invention is to provide an oil-water separation device for grease traps to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oil-water separation device for an oil separator, comprising a base, an oil separator fixedly connected to the top of the base, a drain pipe fixedly connected to the bottom front of the oil separator, a filter mechanism provided on the back of the oil separator, and fixing mechanisms provided on the left and right sides of the filter mechanism.

[0007] The filtration mechanism includes an L-shaped base, which is fixedly connected to the back of the oil separator. A fixed frame is fixedly connected to the top of the L-shaped base. A sliding sleeve is slidably connected to the surface of the fixed frame. A first fixed frame is fixedly connected to the surface of the sliding sleeve. A rotating shaft is rotatably connected to the left and right sides of the first fixed frame. A gear is fixedly connected to the middle of the surface of the rotating shaft. A servo motor is fixedly connected to the right side of the first fixed frame. Racks are fixedly connected to the upper and lower sides of the inner wall of the fixed frame. A lifting frame is fixedly connected to the front of the sliding sleeve. A lifting frame is fixedly connected to one end of the oil separator. A rectangular limiting ring is fixedly connected to the bottom of the inner wall of the lifting frame. A filter plate is slidably connected to the inner wall of the lifting frame.

[0008] Preferably, the right side of the first fixing frame has a hole matching the output shaft of the servo motor, and the surface of the output shaft of the servo motor passes through and is rotatably connected to the hole.

[0009] Preferably, the output end of the servo motor is fixedly connected to the right end of the rotating shaft, and the gear meshes with the rack.

[0010] Preferably, the rectangular limiting ring limits the filter plate to prevent it from sliding down the inner wall of the lifting frame.

[0011] Preferably, the fixing mechanism includes a second fixing frame, which is fixedly connected to the left side of the lifting frame. Guide rods are symmetrically fixedly connected to the left side of the lifting frame. A sliding plate is slidably connected to the surface of the guide rod. A spring is sleeved between the left side of the guide rod and the sliding plate. A pressure block is fixedly connected to the right side of the sliding plate.

[0012] Preferably, the right end of the guide rod is fixedly connected to the left side of the lifting frame, the left end of the spring is fixedly connected to the left side of the second fixing frame, and the right end of the spring is fixedly connected to the left side of the slide plate.

[0013] Preferably, the left side of the lifting frame has a groove that matches the pressure block, and the surface of the pressure block is slidably connected to the groove. The top right end of the pressure block is sloping to facilitate the filter plate sliding into the lifting frame. There are two sets of fixing mechanisms, which are symmetrically arranged on the left and right sides of the lifting frame.

[0014] Compared with the prior art, the present invention provides an oil-water separation device for an oil separator, which has the following advantages:

[0015] 1. The oil-water separation device used in this grease trap utilizes a servo motor in its filtration mechanism to drive a rotating shaft and gears. This, in conjunction with a rack and pinion, enables the sliding sleeve, the first fixed frame, and connected lifting frames, lifting boxes, and filter plates to move up and down. This automated adjustment function allows for flexible adjustment of the filter plates' position within the grease trap based on wastewater quality and treatment requirements, ensuring optimal filtration and improving overall oil-water separation efficiency. For example, when the oil content in the wastewater suddenly increases, the filter plates can be adjusted to be closer to the inlet, intercepting more oil droplets in advance.

[0016] 2. The oil-water separation device used in this oil separator features a fixing mechanism that facilitates filter plate installation. Symmetrically arranged on the left and right sides of the lifting frame are a second fixing bracket, guide rod, sliding plate, spring, and pressure block. During filter plate installation, the inclined surface on the right end of the pressure block facilitates the filter plate sliding into the lifting frame. Once the filter plate is in place, the spring force causes the pressure block to firmly press the filter plate, ensuring a secure installation and preventing it from shaking or shifting under water flow impact, thus guaranteeing the stability of the filtration effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the structural fixing mechanism of this utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the L-shaped base and the rack of this utility model.

[0021] Figure 4 This is a three-dimensional schematic diagram of the rotating shaft and rectangular limiting ring of this utility model.

[0022] Figure 5 This is a three-dimensional schematic diagram of the structural guide rod and slide plate of this utility model.

[0023] In the diagram: 1. Base; 2. Oil separator; 3. Drain pipe; 4. Filtering mechanism; 41. L-shaped base; 42. Fixing frame; 43. Sliding sleeve; 44. First fixing frame; 45. Rotating shaft; 46. Gear; 47. Servo motor; 48. Rack; 49. Lifting frame; 411. Lifting frame; 412. Rectangular limiting ring; 413. Filter plate; 5. Fixing mechanism; 51. Second fixing frame; 52. Guide rod; 53. Slide plate; 54. Spring; 55. Pressure block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] This utility model provides the following technical solution:

[0027] Example 1

[0028] Please see Figure 1-4 This utility model provides a technical solution: an oil-water separation device for an oil separator, including a base 1, an oil separator 2 fixedly connected to the top of the base 1, a drain pipe 3 fixedly connected to the bottom front of the oil separator 2, a filter mechanism 4 provided on the back of the oil separator 2, and fixing mechanisms 5 provided on the left and right sides of the filter mechanism 4.

[0029] The filter mechanism 4 includes an L-shaped base 41, which is fixedly connected to the back of the oil separator 2. A fixed frame 42 is fixedly connected to the top of the L-shaped base 41. A sliding sleeve 43 is slidably connected to the surface of the fixed frame 42. A first fixed frame 44 is fixedly connected to the surface of the sliding sleeve 43. A rotating shaft 45 is rotatably connected to the left and right sides inside the first fixed frame 44. A gear 46 is fixedly connected to the middle of the surface of the rotating shaft 45. A servo motor 47 is fixedly connected to the right side of the first fixed frame 44. A rack 48 is fixedly connected to the upper and lower sides of the inner wall of the fixed frame 42. A lifting frame 49 is fixedly connected to the front of the sliding sleeve 43. A lifting frame 411 is fixedly connected to one end of the lifting frame 49 to the oil separator 2. A rectangular limiting ring 412 is fixedly connected to the bottom of the inner wall of the lifting frame 411. A filter plate 413 is slidably connected to the inner wall of the lifting frame 411.

[0030] The right side of the first fixed bracket 44 has a hole that matches the output shaft of the servo motor 47, and the surface of the output shaft of the servo motor 47 passes through and is rotatably connected to the hole.

[0031] The output end of the servo motor 47 is fixedly connected to the right end of the rotating shaft 45, and the gear 46 meshes with the rack 48.

[0032] The rectangular limiting ring 412 limits the filter plate 413, preventing the filter plate 413 from sliding down the inner wall of the lifting frame 411.

[0033] Example 2

[0034] Please see Figure 5 Furthermore, based on Embodiment 1, a fixing mechanism 5 is obtained.

[0035] The fixing mechanism 5 includes a second fixing frame 51, which is fixedly connected to the left side of the lifting frame 411. Guide rods 52 are symmetrically fixedly connected to the left side of the lifting frame 411. A sliding plate 53 is slidably connected to the surface of the guide rods 52. A spring 54 is sleeved between the surface of the guide rods 52 and the sliding plate 53 on the left side of the second fixing frame 51. A pressure block 55 is fixedly connected to the right side of the sliding plate 53.

[0036] The right end of the guide rod 52 is fixedly connected to the left side of the lifting frame 411, the left end of the spring 54 is fixedly connected to the left side inside the second fixed frame 51, and the right end of the spring 54 is fixedly connected to the left side of the slide plate 53.

[0037] The left side of the lifting frame 411 has a groove that matches the pressure block 55, and the surface of the pressure block 55 is slidably connected to the groove. The top right end of the pressure block 55 is sloping, which makes it easy for the filter plate 413 to slide into the lifting frame 411. There are two sets of fixing mechanisms 5, which are symmetrically arranged on the left and right sides of the lifting frame 411.

[0038] In actual operation, when this device is used, oily wastewater first flows into the oil separator 2. Based on the density difference between oil and water, oil droplets in the oil separator 2 will gradually float to the water surface under the action of gravity, forming a floating oil layer, thus achieving preliminary oil-water separation. This utilizes the basic principle of gravity separation to separate most of the floating oil from the wastewater, reducing the processing burden on the subsequent filtration mechanism 4. When further filtration of fine oil droplets, suspended solids, and impurities in the wastewater is required, the filtration mechanism 4 begins to function. The servo motor 47 is started, and its output shaft drives the rotating shaft 45, which is fixedly connected to it, to rotate. The gear 46 on the rotating shaft 45 rotates accordingly. Since the gear 46 meshes with the racks 48 on the upper and lower sides of the inner wall of the fixed frame 42, the rotation of the gear 46 is converted into the up-and-down movement of the sliding sleeve 43 along the surface of the fixed frame 42. The sliding sleeve 43 is connected to the first fixed frame 44, which in turn drives the lifting frame 49, the lifting frame 411, and the filter plate 413 to move up and down. Operators can precisely adjust the position of filter plate 413 within the oil separator 2 by controlling the forward and reverse rotation and angle of servo motor 47 according to the wastewater quality and treatment requirements. For example, if the wastewater contains a lot of impurities, filter plate 413 can be lowered to a position close to the wastewater inlet to intercept and filter the wastewater in advance. As the wastewater flows within the oil separator 2, it passes through filter plate 413 within lifting frame 411. Filter plate 413 has a specific pore structure that can intercept fine oil droplets, suspended solids, and impurities in the wastewater, allowing water to pass through filter plate 413 and further improving the quality of the separated water. During the filtration process, filter plate 413 remains in a stable position within lifting frame 411 under the limiting action of rectangular limiting ring 412, ensuring the continuity and stability of filtration.

[0039] The fixing mechanism 5 plays a crucial role in the installation of the filter plate 413. The fixing mechanism 5 is symmetrically positioned on the left and right sides of the lifting frame 411. When the filter plate 413 is inserted into the lifting frame 411, the inclined surface at the top right end of the pressure block 55 facilitates the sliding of the filter plate 413. As the filter plate 413 is inserted deeper, it presses against the pressure block 55, causing the slide plate 53 to slide to the left on the guide rod 52, compressing the spring 54. When the filter plate 413 reaches the designated position, the elastic force of the spring 54 pushes the slide plate 53 and the pressure block 55 back to their original positions. The pressure block 55 then firmly presses down on the filter plate 413, securing it from both sides and ensuring a secure installation.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. Oil-water separation device for use in an oil separator, comprising a base (1), characterised in that: The base (1) is fixedly connected to the top of the oil separator (2), the oil separator (2) is fixedly connected to the bottom front of the drain pipe (3), the oil separator (2) is provided with a filter mechanism (4) on the back, and the filter mechanism (4) is provided with a fixing mechanism (5) on the left and right sides. The filtration mechanism (4) includes an L-shaped base (41), which is fixedly connected to the back of the oil separator (2). A fixed frame (42) is fixedly connected to the top of the L-shaped base (41). A sliding sleeve (43) is slidably connected to the surface of the fixed frame (42). A first fixed frame (44) is fixedly connected to the surface of the sliding sleeve (43). A rotating shaft (45) is rotatably connected to the left and right sides inside the first fixed frame (44). A gear (46) is fixedly connected to the middle of the surface of the rotating shaft (45). A servo motor (47) is fixedly connected to the right side of the first fixed frame (44). A rack (48) is fixedly connected to the upper and lower sides of the inner wall of the fixed frame (42). A lifting frame (49) is fixedly connected to the front of the sliding sleeve (43). A lifting frame (411) is fixedly connected to one end of the lifting frame (49) in the oil separator (2). A rectangular limiting ring (412) is fixedly connected to the bottom of the inner wall of the lifting frame (411). A filter plate (413) is slidably connected to the inner wall of the lifting frame (411).

2. The oil-water separation device for an oil separation tank according to claim 1, characterized by: The first fixing bracket (44) has a hole on the right side that matches the output shaft of the servo motor (47), and the surface of the output shaft of the servo motor (47) passes through and is rotatably connected to the hole.

3. The oil-water separation device for an oil separation tank according to claim 1, characterized by: The output end of the servo motor (47) is fixedly connected to the right end of the rotating shaft (45), and the gear (46) meshes with the rack (48).

4. The oil-water separation device for an oil separation tank according to claim 1, characterized by: The rectangular limiting ring (412) limits the filter plate (413).

5. The oil-water separation device for an oil separation tank according to claim 1, characterized by: The fixing mechanism (5) includes a second fixing frame (51), which is fixedly connected to the left side of the lifting frame (411). A guide rod (52) is symmetrically fixedly connected to the left side of the lifting frame (411). A sliding plate (53) is slidably connected to the surface of the guide rod (52) from left to right. A spring (54) is sleeved between the left side of the second fixing frame (51) and the sliding plate (53). A pressure block (55) is fixedly connected to the right side of the sliding plate (53).

6. The oil-water separation device for an oil separation tank according to claim 5, characterized by: The right end of the guide rod (52) is fixedly connected to the left side of the lifting frame (411), the left end of the spring (54) is fixedly connected to the left side inside the second fixing frame (51), and the right end of the spring (54) is fixedly connected to the left side of the slide plate (53).

7. The oil-water separation device for an oil separation tank according to claim 5, characterized by: The lifting frame (411) has a groove on the left side that matches the pressure block (55), and the surface of the pressure block (55) is connected to the groove by sliding left and right. The top right end of the pressure block (55) is sloping. There are two sets of fixing mechanisms (5), which are symmetrically arranged on the left and right sides of the lifting frame (411).

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