Oil separation tank for domestic sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an oil separation tank for domestic sewage treatment, the top of a top frame is fixedly connected with a hydraulic oil cylinder through bolts, an output shaft of the hydraulic oil cylinder penetrates through the top of the top frame and is fixedly connected with the top of a bearing plate, and the bottom of the bearing plate is slidably connected with a bottom frame; the top of the bottom frame is fixedly connected with a protruding block, the protruding block is slidably connected with the bearing plate through the movable groove, one side of the top of the bearing plate is fixedly connected with a side plate, one side of the side plate is fixedly connected with an air cylinder through a bolt, and the top of the protruding block is fixedly connected with a connecting plate. By adopting the mode of combining the hydraulic oil cylinder and the air cylinder, automatic descending and horizontal movement of the oil absorption cloth are realized, the requirement of manual intervention is greatly reduced, the operation convenience and the working efficiency of the oil separation tank are improved, and the problem that suspended oil stains in a traditional oil separation tank are difficult to quickly and effectively take out is solved.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment technology, and in particular to an oil separator for treating domestic sewage. Background Technology

[0002] Grease traps play a vital role in environmental protection and municipal engineering for domestic wastewater treatment. As a key component of the wastewater treatment process, their performance and quality have a decisive impact on the overall treatment effect. Especially in the treatment of domestic wastewater in households and commercial establishments, grease traps are crucial for removing grease from wastewater; their operational efficiency and treatment effectiveness directly affect the effectiveness of subsequent treatment steps and the safety of the final water quality. However, existing grease trap technology has gradually revealed a series of significant limitations and technical problems when treating wastewater containing large amounts of suspended oil.

[0003] Utility model patent CN213803027U discloses an oil separator for treating domestic sewage in urban areas. It includes a pit dug underground, a concrete cushion layer at the bottom of the pit, and a pool body inside the pit at the top of the concrete cushion layer. The inner cavity of the pool body is divided into an inlet chamber and an outlet chamber by a vertical partition. An inlet pipe is provided at the top of the pool body in the inlet chamber, and an outlet pipe is provided at the top of the pool body in the outlet chamber. A filter pipe is provided on the vertical partition. A maintenance cover is fastened to the top of the pool body. Coarse sand is filled between the outer wall of the pool body and the inner wall of the pit, which increases the hydraulic retention time of the wastewater and allows the entire cross-section to flow at a uniform speed, thereby achieving the purpose of oil-water separation.

[0004] Specifically, existing grease trap equipment faces prominent problems in practical applications, including inconvenient operation, low efficiency, and unstable treatment effects. In existing technologies for treating domestic sewage, it is difficult to remove suspended oil stains from the grease trap. This not only increases the workload and difficulty of manual cleaning but may also result in incomplete oil removal, affecting the effectiveness of subsequent treatment processes. Furthermore, the inability to effectively and promptly remove oil stains can easily lead to the deterioration of the internal environment of the grease trap, thus affecting its continued use. These problems directly lead to reduced sewage treatment efficiency, increased operational complexity, and difficulty in meeting the demands for efficient and environmentally friendly sewage treatment. More seriously, these problems significantly increase maintenance costs and risks and may pose potential threats to the quality and safety of the overall sewage treatment system. Therefore, to address the numerous shortcomings of existing technologies, we urgently need a new type of grease trap for domestic sewage treatment to solve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide an oil separator for domestic sewage treatment, which solves the problem that in the existing technology, it is not easy to remove the suspended oil stains in the oil separator during domestic sewage treatment. This not only increases the workload and difficulty of manual cleaning, but may also lead to the oil stains not being completely removed, thus affecting the effect of subsequent treatment processes.

[0006] To achieve the above objectives, this utility model provides an oil separator for domestic sewage treatment, including a tank body, a bearing plate slidably connected to the inner side of the tank body, and a top frame fixedly connected to the top of the tank body.

[0007] A hydraulic cylinder is fixedly connected to the top of the top frame by bolts, and the output shaft of the hydraulic cylinder passes through the top of the top frame and is fixedly connected to the top of the support plate. A bottom frame is slidably connected to the bottom of the support plate, and a protrusion is fixedly connected to the top of the bottom frame. The protrusion is slidably connected to the support plate through a movable groove. A side plate is fixedly connected to one side of the top of the support plate, and a cylinder is fixedly connected to one side of the side plate by bolts. A connecting plate is fixedly connected to the top of the protrusion. The output shaft of the cylinder is fixedly connected to one side of the connecting plate. Fixing plates are fixedly connected to both sides of the inner side of the bottom frame, and the top of both fixing plates is provided with a pressure plate that is elastically connected to the inner wall of the bottom frame.

[0008] The upper side of the pool is connected to a door via a hinge, and the lower side of the pool is equipped with a bottom valve.

[0009] The bottom frame has a support plate fixedly connected to its inner side, and the tops of the two pressure plates are elastically connected to the top of the inner side of the bottom frame through compression springs. The tops of the two pressure plates are also fixedly connected to the bottom of the inner side of the bottom frame through several telescopic rods.

[0010] The support plate has sliders fixedly connected to both sides, and both sliders are slidably connected to the inner wall of the pool through a groove.

[0011] The connecting plate has sliding blocks fixedly connected to both sides of its bottom, and both sliding blocks are connected to the top of the bearing plate through sliding grooves.

[0012] The top of the bearing plate is fixedly connected to a connecting frame, and the output shaft of the hydraulic cylinder is fixedly connected to the top of the connecting frame. The connection between the output shaft of the hydraulic cylinder and the top frame is a sliding connection.

[0013] This utility model discloses an oil separator for domestic sewage treatment. First, by combining hydraulic cylinders and pneumatic cylinders, it achieves automatic descent and horizontal movement of the oil-absorbing cloth, greatly reducing the need for manual intervention and improving the ease of operation and efficiency of the oil separator. It also solves the problem of the difficulty in quickly and effectively removing suspended oil stains in traditional oil separators. Second, the elastically connected pressure plate stabilizes the oil-absorbing cloth, ensuring its stability and reliability during operation and simplifying the cloth replacement process, thus reducing maintenance costs and difficulty. Third, the bottom frame design allows the oil-absorbing cloth to directly contact the sewage surface and move along the water surface, thereby more effectively absorbing oil stains, improving the oil-water separation effect, and contributing to the effectiveness of subsequent treatment steps and the safety of the final water quality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the external structure of an embodiment of the present utility model.

[0016] Figure 2 This is a top view of an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the inner structure of the frame in an embodiment of this utility model.

[0018] Figure 4 This is a schematic diagram of the top frame and its structure according to an embodiment of the present utility model.

[0019] Figure 5 This is a schematic diagram of the support plate and its structure according to an embodiment of the present utility model.

[0020] Figure 6 This is a schematic diagram of the bottom frame and its structure according to an embodiment of the present utility model.

[0021] 1. Pool body; 2. Top frame; 3. Hydraulic cylinder; 4. Connecting frame; 5. Door; 6. Bottom valve; 7. Bearing plate; 8. Sliding block; 9. Slide groove; 10. Side plate; 11. Cylinder; 12. Bottom frame; 13. Support plate; 14. Fixing plate; 15. Pressure plate; 16. Telescopic rod; 17. Compression spring; 18. Connecting plate; 19. Protrusion; 20. Movable groove; 21. Sliding block; 22. Sliding groove. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Please see Figure 1-6 A grease trap for treating domestic sewage includes a tank body 1, a support plate 7 slidably connected to the inner side of the tank body 1, and a top frame 2 fixedly connected to the top of the tank body 1. A hydraulic cylinder 3 is fixedly connected to the top of the top frame 2 by bolts, and the output shaft of the hydraulic cylinder 3 passes through the top of the top frame 2 and is fixedly connected to the top of the support plate 7. A bottom frame 12 is slidably connected to the bottom of the support plate 7, and a protrusion 19 is fixedly connected to the top of the bottom frame 12. The protrusion 19 is slidably connected to the support plate 7 through a movable groove 20. A side plate 10 is fixedly connected to one side of the top of the support plate 7, and a cylinder 11 is fixedly connected to one side of the side plate 10 by bolts. A connecting plate 18 is fixedly connected to the top of the protrusion 19, wherein the output shaft of the cylinder 11 is fixedly connected to one side of the connecting plate 18. Fixing plates 14 are fixedly connected to both sides of the inner side of the bottom frame 12, and the top of each fixing plate 14 is provided with a pressure plate 15 elastically connected to the inner wall of the bottom frame 12.

[0024] First, wastewater is introduced into tank 1. When it is necessary to remove oil stains from the surface of the wastewater in tank 1, the oil-absorbing cloth is placed in the bottom frame 12, and the fixed plate 14 and pressure plate 15 in the bottom frame 12 are used to firmly clamp the oil-absorbing cloth under the action of elasticity. Then, the hydraulic cylinder 3 is activated, and its output shaft drives the support plate 7 and the bottom frame 12 below it to move down, so that the oil-absorbing cloth comes into contact with the wastewater surface. Next, the cylinder 11 is activated, and the connecting plate 18 pulls the bottom frame 12 back and forth on the wastewater surface, so that the oil-absorbing cloth can effectively absorb the oil stains. During this process, the protrusion 19 slides between the support plate 7 and the movable groove 20, ensuring the stability and smoothness of the movement of the bottom frame 12. In addition, according to the actual treatment needs, the operation can be stopped at any time and the oil-absorbing cloth can be replaced to ensure the best oil stain absorption effect.

[0025] Furthermore, a door 5 is hinged to the upper side of the pool body 1, and a bottom valve 6 is installed on the lower side of the pool body 1. When cleaning or maintenance of the inside of the pool body 1 is required, the door 5 can be opened to quickly enter the pool body 1 for operation. At the same time, the bottom valve 6 is designed to easily drain the sewage or sediment from the pool body 1. This achieves the effect of improving the convenience of equipment maintenance and cleaning efficiency, and reducing the workload of manual cleaning.

[0026] Furthermore, a support plate 13 is fixedly connected to the inner side of the base frame 12, and the tops of both pressure plates 15 are elastically connected to the top inner side of the base frame 12 via compression springs 17. The tops of both pressure plates 15 are also fixedly connected to the bottom inner side of the base frame 12 via several telescopic rods 16. When the oil-absorbing cloth is placed in the base frame 12, the compression springs 17 apply downward pressure to the pressure plates 15 through elastic force. This, combined with the telescopic rods 16, ensures that the pressure plates 15 maintain a stable clamping action during movement, thereby stabilizing the position of the oil-absorbing cloth. This achieves the effect of improving the clamping stability and reliability of the oil-absorbing cloth and preventing displacement during movement.

[0027] Furthermore, sliders 8 are fixedly connected to both sides of the support plate 7, and both sliders 8 are slidably connected to the inner wall of the pool 1 through grooves 9. When the hydraulic cylinder 3 drives the support plate 7 to move up and down, the sliders 8 slide along the grooves 9, restricting the movement trajectory of the support plate 7 and ensuring its stable movement in the vertical direction. This achieves the effect of improving the stability and accuracy of the support plate 7 during the lifting process and avoiding the influence of shaking on the adsorption effect.

[0028] Furthermore, sliding blocks 21 are fixedly connected to both sides of the bottom of the connecting plate 18, and both sliding blocks 21 are connected to the top of the bearing plate 7 through sliding grooves 22. When the cylinder 11 pulls the connecting plate 18 to move the bottom frame 12 horizontally, the sliding blocks 21 slide along the sliding grooves 22, further restricting the movement direction of the bottom frame 12 and ensuring its smooth movement on the horizontal plane. This achieves the effect of improving the horizontal movement stability of the bottom frame 12 and the uniformity of oil absorption cloth adsorption.

[0029] Furthermore, a connecting frame 4 is fixedly connected to the top of the support plate 7, and the output shaft of the hydraulic cylinder 3 is fixedly connected to the top of the connecting frame 4. The connection between the output shaft of the hydraulic cylinder 3 and the top frame 2 is a sliding connection. The hydraulic cylinder 3 is fixedly connected to the support plate 7 through the connecting frame 4. When the hydraulic cylinder 3 operates, its output shaft transmits power to the support plate 7 through the sliding connection, ensuring that the support plate 7 can rise and fall smoothly. This achieves the effect of optimizing the power transmission efficiency between the hydraulic cylinder 3 and the support plate 7, and improving the overall operational stability and reliability of the equipment.

[0030] In summary:

[0031] First, wastewater is introduced into tank 1. When it is necessary to remove oil stains from the surface of the wastewater in tank 1, the oil-absorbing cloth is placed in the bottom frame 12. The fixed plate 14 and pressure plate 15 in the bottom frame 12 are used to firmly clamp the oil-absorbing cloth under the action of elasticity and compression spring 17. At the same time, the support plate 13 provides additional support to ensure structural stability. Then, the hydraulic cylinder 3 is activated. Its output shaft is fixedly connected to the top of the support plate 7 through the connecting frame 4. This connection is a sliding connection to ensure smooth power transmission. It drives the support plate 7 and the bottom frame 12 below it to move down along the guide of the slider 8 and the slide groove 9, so that the oil-absorbing cloth can contact the surface of the wastewater. Next, the cylinder 11 is activated, which pulls the bottom frame 12 back and forth on the surface of the wastewater through the connecting plate 18, so that the oil-absorbing cloth can effectively absorb the oil stains. During this process, the protrusion 19 slides between the movable groove 20 and the support plate 7, ensuring the stability and smoothness of the movement of the bottom frame 12. Meanwhile, the sliding blocks 21 on both sides of the bottom of the connecting plate 18 further restrict the horizontal movement trajectory of the bottom frame 12 through the sliding groove 22, improving the accuracy of movement. Furthermore, according to actual processing needs, operation can be stopped at any time and the oil-absorbing cloth can be replaced to ensure optimal oil stain absorption. By using a combination of hydraulic cylinder 3 and pneumatic cylinder 11 to achieve automatic descent and horizontal movement of the oil-absorbing cloth, the need for manual intervention is greatly reduced, improving the ease of operation and efficiency of the grease trap, and solving the problem of difficulty in quickly and effectively removing suspended oil stains in traditional grease traps. Secondly, a pressure plate 15 with a compression spring 17 and a telescopic rod 16 is designed to stabilize the oil-absorbing cloth, ensuring not only the stability and reliability of the oil-absorbing cloth during operation but also simplifying the replacement process and reducing maintenance costs and difficulty. Furthermore, the design of the slider 8 and the sliding groove 9 ensures the smoothness and accuracy of the support plate 7 during lifting, avoiding any impact on the adsorption effect due to shaking. Furthermore, the sliding block 21 on the connecting plate 18 works in conjunction with the sliding groove 22 to further enhance the stability and accuracy of the horizontal movement of the bottom frame 12, and improve the uniformity of the oil-absorbing cloth's adsorption. Finally, the hinge rotation connection method of the door body 5 and the design of the bottom valve 6 facilitate the daily maintenance and cleaning of the equipment, significantly improving the ease of maintenance and cleaning efficiency.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A grease trap for treating domestic sewage, comprising a tank body, characterized in that, It also includes a support plate that slides on the inner side of the pool and a top frame that is fixedly connected to the top of the pool; A hydraulic cylinder is fixedly connected to the top of the top frame by bolts, and the output shaft of the hydraulic cylinder passes through the top of the top frame and is fixedly connected to the top of the support plate. A bottom frame is slidably connected to the bottom of the support plate, and a protrusion is fixedly connected to the top of the bottom frame. The protrusion is slidably connected to the support plate through a movable groove. A side plate is fixedly connected to one side of the top of the support plate, and a cylinder is fixedly connected to one side of the side plate by bolts. A connecting plate is fixedly connected to the top of the protrusion. The output shaft of the cylinder is fixedly connected to one side of the connecting plate. Fixing plates are fixedly connected to both sides of the inner side of the bottom frame, and the top of both fixing plates is provided with a pressure plate that is elastically connected to the inner wall of the bottom frame.

2. The grease trap for domestic sewage treatment as described in claim 1, characterized in that, The upper side of the pool is connected to a door via a hinge, and the lower side of the pool is equipped with a bottom valve.

3. The grease trap for domestic sewage treatment as described in claim 1, characterized in that, The bottom frame is fixedly connected to a support plate, and the tops of the two pressure plates are elastically connected to the top of the bottom frame via compression springs. The tops of the two pressure plates are also fixedly connected to the bottom of the bottom frame via several telescopic rods.

4. The grease trap for domestic sewage treatment as described in claim 1, characterized in that, Both sides of the support plate are fixedly connected to sliders, and both sliders are slidably connected to the inner wall of the pool through a sliding groove.

5. The grease trap for domestic sewage treatment as described in claim 1, characterized in that, Sliding blocks are fixedly connected to both sides of the bottom of the connecting plate, and both sliding blocks are connected to the top of the bearing plate through sliding grooves.

6. The grease trap for domestic sewage treatment as described in claim 1, characterized in that, The top of the bearing plate is fixedly connected to a connecting frame, and the output shaft of the hydraulic cylinder is fixedly connected to the top of the connecting frame, and the connection between the output shaft of the hydraulic cylinder and the top frame is a sliding connection.

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