An oil separation sewage lifting device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ZHONGSONG ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-21
Smart Images

Figure CN224530682U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of oil-water separation and sewage lifting equipment, specifically an oil-water separation and sewage lifting equipment. Background Technology
[0002] In industries such as catering and food processing, a large amount of oily wastewater is generated daily. If it is discharged directly without effective treatment, the grease in the wastewater can easily adhere to the inner wall of the drainage pipe, causing blockage and affecting the normal operation of the drainage system. In addition, impurities and grease in the wastewater can also pollute the water environment. Traditional grease traps mostly use simple gravity sedimentation or filter screen filtration, which have problems such as incomplete impurity interception and low oil-water separation efficiency, making it difficult to meet increasingly stringent environmental protection requirements and the demand for efficient wastewater treatment.
[0003] Existing technologies typically have shortcomings in the stages of impurity interception and cleaning and oil-water separation. On the one hand, they cannot effectively separate large particulate impurities in wastewater, which can easily lead to blockage of subsequent pipelines.
[0004] On the other hand, the separation effect of oil-water mixtures is not good, and it is difficult to achieve efficient and thorough separation of grease and sewage; and it is difficult to simultaneously and efficiently clean impurities and separate oil and water. Therefore, this utility model provides an oil-water separation and sewage lifting device. Utility Model Content
[0005] To address the shortcomings of existing technologies and solve the deficiencies in impurity interception and cleaning and oil-water separation, it is necessary to address the following issues: Firstly, large particulate impurities in wastewater cannot be effectively separated, which can easily lead to blockages in subsequent pipelines. Secondly, the separation effect on oil-water mixtures is poor, making it difficult to achieve efficient and thorough separation of grease and wastewater. Furthermore, it is difficult to simultaneously and efficiently perform impurity cleaning and oil-water separation.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: An oil-water separation and sewage lifting device of this utility model includes a tank body; the tank body is divided into a cleaning chamber and a sedimentation chamber by a partition; an inlet pipe and an outlet pipe are respectively provided on both sides of the tank body; a first circulation groove and a second circulation groove are respectively provided on the opposite side walls of the cleaning chamber and the sedimentation chamber; a first rod and a second rod are rotatably connected between the opposite side walls of the cleaning chamber and the sedimentation chamber; sliding rods are slidably connected between the opposite side walls of the first circulation groove and the second circulation groove; an elastic membrane is provided between a pair of sliding rods and the first rod and the second rod respectively; the elastic membrane is provided with flow holes; a pair of discharge grooves are provided on the side wall of the tank body, and the pair of discharge grooves correspond to the positions of the first rod and the second rod respectively; a set of flow grooves are provided on the side wall of the partition; a power component is provided inside the tank body, and the pair of sliding rods are driven to slide by the power component.
[0007] Preferably, the power component includes a motor; the motor is fixedly connected to the side wall of the housing via a fixing block; square grooves are provided inside the housing and the partition; a set of square grooves are slidably connected to a mountain-shaped slider; a lead screw is rotatably connected to the side wall of the square groove in the partition, and one end of the lead screw passes through the housing and is fixedly connected to the output end of the motor; the side wall of the mountain-shaped slider is provided with a threaded groove, and the threaded groove and the lead screw are threadedly connected; a pair of ring blocks are fixedly connected to the bottom of the mountain-shaped slider, and a pair of sliding rods are both located inside the ring blocks.
[0008] Preferably, both the first circulation groove and the second circulation groove are pentagonal in shape. Both the first circulation groove and the second circulation groove are connected end to end by a sloping groove, a return groove and a three-sided groove. The sloping groove and the return groove are both located near the end of the flow groove, and the sloping groove is located obliquely above the flow groove.
[0009] Preferably, both of the inclined grooves are wavy grooves; the cross-section of the flow groove is conical, and the tip of the cone is oriented toward the impurity removal cavity.
[0010] Preferably, a concave block is fixedly connected to the bottom of the impurity removal chamber, and the top height of the concave block is aligned with the lowest end of the three-sided groove of the first circulation groove; a groove is provided on the top of the concave block, and a resilient membrane is fixedly connected between the two ends of the top of the groove, and the resilient membrane is in contact with the bottom of the ring block in the impurity removal chamber.
[0011] Preferably, each pair of sliding rods is composed of a sliding column and a connecting rod. The sliding column is slidably connected in the first circulation groove and the second circulation groove. Each pair of sliding rods is fixedly connected to the connecting rod by a torsion spring. The elastic membrane is wound in a roll on the connecting rod. The first rod and the second rod are both fixedly connected to the other end of the elastic membrane.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The oil-water separation and sewage lifting equipment described in this utility model innovatively adopts an elastic membrane combined with a special circulation tank design, which can effectively treat sewage. In the impurity removal chamber, the elastic membrane can pick up large particles of impurities, while in the sedimentation chamber, floating grease can be picked up.
[0014] 2. The oil-water separation and sewage lifting equipment described in this utility model has a pentagonal structure in the circulation tank, which guides the elastic membrane to move in a wave-like motion, so as to promote the efficient separation of impurities and grease and discharge them through the discharge tank, which greatly improves the separation efficiency. Compared with traditional equipment, it can achieve oil-water and impurity separation more quickly and thoroughly, ensuring smooth subsequent sewage discharge. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a perspective view of the present invention;
[0017] Figure 2 This is a top sectional view of the present invention;
[0018] Figure 3 This is a side sectional view of the present invention;
[0019] Figure 4 This is a structural diagram of the internal structure of the box in this utility model.
[0020] In the diagram: 1. Box body; 11. Impurity removal chamber; 12. Sedimentation chamber; 13. First circulation tank; 14. Second circulation tank; 15. Sliding rod; 16. Elastic membrane; 17. Discharge tank; 18. Flow tank; 2. Motor; 21. Square groove; 22. Mountain-shaped slider; 23. Lead screw; 24. Ring block; 3. Inclined groove; 31. Reverse groove; 32. Three-sided groove; 4. Central concave block; 41. Resilient membrane; 42. Inlet pipe; 43. Outlet pipe. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] Example 1
[0023] like Figures 1 to 4 As shown in the embodiment of this utility model, an oil-water separation and lifting device includes a housing 1. The housing 1 is divided into a cleaning chamber 11 and a sedimentation chamber 12 by a partition. An inlet pipe 42 and an outlet pipe 43 are respectively provided on both sides of the housing 1. A first circulation groove 13 and a second circulation groove 14 are respectively provided on the opposite side walls of the cleaning chamber 11 and the sedimentation chamber 12. A first rod and a second rod are rotatably connected between the opposite side walls of the cleaning chamber 11 and the sedimentation chamber 12. Sliding rods 15 are slidably connected between the opposite side walls of the first circulation groove 13 and the second circulation groove 14. An elastic membrane 16 is provided between each pair of sliding rods 15 and the first and second rods respectively, and the elastic membrane 16 has flow holes. A pair of discharge grooves 17 are provided on the side wall of the housing 1, and the pair of discharge grooves 17 correspond to the positions of the first and second rods respectively. A set of flow grooves 18 are provided on the side wall of the partition. A power component is provided inside the housing 1, and the pair of sliding rods 15 are driven to slide by the power component.
[0024] During operation, the tank 1 is divided into a waste removal chamber 11 and a sedimentation chamber 12 by a partition, forming a two-stage treatment space. A fixed first rod, a second rod, and a sliding rod 15 are respectively installed in each chamber. An elastic membrane 16 connecting the rods has flow holes, serving as the core carrier for wastewater treatment. When the power component drives the sliding rod 15 to slide along the first circulation tank 13 and the second circulation tank 14, the elastic membrane 16 stretches or contracts accordingly. Utilizing the physical barrier of the membrane and the screening effect of the flow holes, large particles of impurities in the wastewater are first removed in the waste removal chamber 11. Simultaneously, the elastic membrane 16 in the sedimentation chamber 12 removes the already settled grease, and both are then discharged through the discharge tank 17. The inlet pipe 42 and the outlet pipe 43 are connected to the waste removal chamber 11 and the sedimentation chamber 12, respectively.
[0025] The power component includes a motor 2; the motor 2 is fixedly connected to the side wall of the housing 1 by a fixing block; both the housing 1 and the partition are provided with square grooves 21; a set of square grooves 21 are slidably connected to each other with a mountain-shaped slider 22; a lead screw 23 is rotatably connected to the side wall of the square groove 21 in the partition, and one end of the lead screw 23 passes through the housing 1 and is fixedly connected to the output end of the motor 2; the side wall of the mountain-shaped slider 22 is provided with a threaded groove, and the threaded groove is threadedly connected to the lead screw 23; a pair of ring blocks 24 are fixedly connected to the bottom of the mountain-shaped slider 22, and a pair of sliding rods 15 are both located inside the ring blocks 24;
[0026] During operation, the motor 2 drives the lead screw 23 to rotate, which in turn drives the mountain-shaped slider 22 to slide in the square groove 21; the ring block 24 at the bottom of the slider covers the sliding rod 15, which in turn drives the sliding rod 15 to slide along the first circulation groove 13 and the second circulation groove 14. This design ensures coordinated movement of the two sliding rods 15 through a single power source, making the expansion and contraction of the elastic membrane 16 in the impurity removal chamber 11 and the sedimentation chamber 12 stable, and ensuring that the membrane's interception of sewage and separation of sewage and oil mixtures are continuously effective during the sewage treatment process.
[0027] Each pair of sliding rods 15 is composed of a sliding column and a connecting rod. The sliding column is slidably connected in the first circulation groove 13 and the second circulation groove 14. Each pair of sliding rods is fixedly connected to the connecting rod by a torsion spring. The elastic membrane 16 is wound in a roll on the connecting rod. The first rod and the second rod are both fixedly connected to the other end of the elastic membrane 16.
[0028] During operation, the elastic potential energy of the torsion spring ensures that the elastic membrane 16 remains taut throughout its movement. When the sliding column moves and needs to stretch the elastic membrane 16, the connecting rod rotates under the tension of the membrane, overcoming the spring force, and the membrane unfolds from the connecting rod, storing elastic potential energy in the torsion spring. When contraction is required, the rebound force of the torsion spring causes the connecting rod to reverse, rewinding the membrane back onto the rod. The continuous torque of the torsion spring keeps the membrane taut, ensuring the stability of impurity interception and oil-water separation. This avoids relying solely on the membrane's elasticity, which, with prolonged use, can cause it to stretch and lose its tautness, affecting its function. (Because the connecting rod rotates via a pair of torsion springs, which in turn causes the elastic membrane 16 to expand and contract, this is existing technology, therefore, this part is not shown in the figure.)
[0029] Example 2
[0030] like Figures 1 to 4 As shown, the first circulation groove 13 and the second circulation groove 14 are both pentagonal in shape. The first circulation groove 13 and the second circulation groove 14 are connected end to end by a sloping groove 3, a return groove 31 and a three-sided groove 32. The sloping groove 3 and the return groove 31 are both located near the end of the flow groove 18, and the sloping groove 3 is located obliquely above the flow groove 18.
[0031] During operation, the first circulation tank 13 and the second circulation tank 14 adopt a near-pentagonal structure, consisting of an inclined trough 3, a return trough 31, and a three-sided trough 32 connected end to end. The working principle is to guide the movement of the sliding rod 15 through a special trajectory to optimize the sewage treatment path. The inclined trough 3 and the return trough 31 are close to the flow tank 18, and the inclined trough 3 is located obliquely above the flow tank 18. When the sliding rod 15 moves along the inclined trough 3, the elastic membrane 16 moves obliquely upwards. The inclined angle promotes the separation of grease and impurities from the elastic membrane 16 and into the discharge tank 17. The return trough 31 reverses the movement direction of the membrane, completing the circulation path of the elastic membrane 16. After the elastic membrane 16 has finished emptying the impurities above it, it obliquely contracts into the liquid and then scoops up the impurities and grease from the bottom of the impurity removal chamber 11 and the sedimentation chamber 12, so that they are removed from the tank 1, achieving a better separation effect.
[0032] Both of the inclined grooves 3 are designed as wavy grooves; the cross-section of the flow groove 18 is conical, and the tip of the cone is oriented toward the impurity removal cavity 11;
[0033] During operation, the wavy inclined trough 3 causes the sliding rod 15 to drive the elastic membrane 16 to make a wave-like motion. At this time, the elastic membrane 16 is tilted towards the discharge trough 17. In addition, the continuous wave-like vibration of the elastic membrane 16 causes the carrier above it to pass through the discharge trough 17 quickly. The cross-section of the conical flow channel 18 is conical and the tip is facing the impurity removal chamber 11. When the sewage flows from the impurity removal chamber 11 into the sedimentation chamber 12, it avoids impurities from entering the sedimentation chamber 12. Moreover, the liquid flow rate in the sedimentation chamber 12 is slow, avoiding impact on the grease layer above and causing low coagulation efficiency.
[0034] The bottom of the impurity removal cavity 11 is fixedly connected to a concave block 4, and the top height direction of the concave block 4 is the same as the direction of the lowest end of the three-sided groove 32 of the first circulation groove 13; the top of the concave block 4 is provided with a groove, and a rebound membrane 41 is fixedly connected between the two ends of the top of the groove, and the elastic membrane 16 is in contact with the bottom of the ring block 24 in the impurity removal cavity 11.
[0035] During operation, the design of the concave block 4 allows impurities to accumulate in the middle of the impurity removal chamber 11, making it easier for the elastic membrane 16 to remove the impurities. The setting of the rebound membrane 41 provides space for the sliding of the ring block 24, while preventing impurities from accumulating in the impurity removal chamber 11.
[0036] Working Principle: The system achieves efficient purification of oily wastewater through a multi-stage treatment structure and dynamic separation mechanism. The core of the equipment consists of a removal chamber 11 and a sedimentation chamber 12 inside the housing 1. These two chambers are separated by a partition and connected by a conical flow channel 18, respectively performing impurity separation and grease separation functions. The power system is driven by a motor 2 driving a lead screw 23, which in turn drives a mountain-shaped slider 22 to synchronously control the sliding rods 15 in both chambers to move along a near-pentagonal circulation channel, causing the elastic membrane 16 to stretch and contract along the trajectory. In the removal chamber 11, the elastic membrane 16 intercepts large particles of impurities using the flow holes, and, in conjunction with the concave block 4, collects the impurities and discharges them into the discharge channel 17 through vibration via the wave-shaped inclined channel 3. In the sedimentation chamber 12, the elastic membrane 16 remains taut under the action of a torsion spring, scooping up floating grease along the trajectory and guiding it to the corresponding discharge channel 17. The entire process is achieved through a single power source, utilizing a special trajectory design to extend the treatment path. Combined with the dynamic movement and structural characteristics of the elastic membrane 16, it efficiently completes impurity removal, oil-water separation, and wastewater lifting and discharge, solving the problems of incomplete separation and uncoordinated power in traditional equipment.
[0037] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An oil-water separation and sewage lifting device, characterized in that: The enclosure includes a housing (1); the housing (1) is divided into a purification chamber (11) and a sedimentation chamber (12) by a partition; an inlet pipe (42) and an outlet pipe (43) are respectively provided on both sides of the housing (1); a first circulation groove (13) and a second circulation groove (14) are respectively provided on the opposite side walls of the purification chamber (11) and the sedimentation chamber (12); a first rod and a second rod are respectively rotatably connected between the opposite side walls of the purification chamber (11) and the sedimentation chamber (12); the first circulation groove (13) and the second circulation groove (14) are respectively provided with a first rod and a second rod. Sliding rods (15) are slidably connected between opposite sidewalls of the groove (14). An elastic membrane (16) is provided between the pair of sliding rods (15) and the first rod and the second rod respectively. A flow hole is provided on the elastic membrane (16). A pair of discharge grooves (17) are provided on the sidewall of the box (1), and the pair of discharge grooves (17) are respectively corresponding to the positions of the first rod and the second rod. A set of flow grooves (18) is provided on the sidewall of the partition. A power component is provided inside the box (1), and the pair of sliding rods (15) are driven to slide by the power component.
2. The oil-water separation and sewage lifting equipment according to claim 1, characterized in that: The power component includes a motor (2); the motor (2) is fixedly connected to the side wall of the housing (1) by a fixing block; the housing (1) and the partition are provided with square grooves (21); a set of square grooves (21) are slidably connected to each other with a mountain-shaped slider (22); the side wall of the square groove (21) in the partition is rotatably connected to a lead screw (23), and one end of the lead screw (23) passes through the housing (1) and is fixedly connected to the output end of the motor (2); the side wall of the mountain-shaped slider (22) is provided with a threaded groove, and the threaded groove and the lead screw (23) are threadedly connected; a pair of ring blocks (24) are fixedly connected to the bottom of the mountain-shaped slider (22), and a pair of sliding rods (15) are located inside the ring blocks (24).
3. The oil-water separation and sewage lifting equipment according to claim 2, characterized in that: The first circulation groove (13) and the second circulation groove (14) are both pentagonal in shape. The first circulation groove (13) and the second circulation groove (14) are connected end to end by a sloping groove (3), a return groove (31) and a three-sided groove (32). The sloping groove (3) and the return groove (31) are both located near the end of the flow groove (18), and the sloping groove (3) is located obliquely above the flow groove (18).
4. The oil-water separation and sewage lifting equipment according to claim 3, characterized in that: Both of the inclined grooves (3) are wavy grooves; the cross section of the flow groove (18) is conical, and the tip of the cone is set towards the impurity removal cavity (11).
5. The oil-water separation and sewage lifting equipment according to claim 4, characterized in that: The bottom of the impurity removal cavity (11) is fixedly connected to a concave block (4), and the top height direction of the concave block (4) is the same as the direction of the lowest end of the three-sided groove (32) of the first circulation groove (13); the top of the concave block (4) is provided with a groove, and a rebound membrane (41) is fixedly connected between the two ends of the top of the groove, and the elastic membrane (16) is in contact with the bottom of the ring block (24) in the impurity removal cavity (11).
6. The oil-water separation and sewage lifting equipment according to claim 5, characterized in that: Each pair of sliding rods (15) is composed of a sliding column and a connecting rod. The sliding column is slidably connected in the first circulation groove (13) and the second circulation groove (14). Each pair of sliding rods is fixedly connected to the connecting rod by a torsion spring. The elastic membrane (16) is wound in a roll on the connecting rod. The first rod and the second rod are both fixedly connected to the other end of the elastic membrane (16).