Pond scum recovery device
By designing a floating oil recovery device for water tanks, and utilizing a V-shaped structure and a submersible pump to separate oil and water, the problem of difficult-to-clean floating oil in water tanks has been solved, achieving low-cost and high-efficiency floating oil recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN DONGHUA IRON & STEEL ENTERPRISE GRP CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-21
AI Technical Summary
How to effectively clean up floating oil in water tanks? Existing water treatment facilities are unable to efficiently separate and recover floating oil.
Design a water tank oil recovery device, which adopts a V-shaped oil collection tank and a floating pipe, combined with a submersible pump. The oil and water are separated by the floating pipe and the trapezoidal connecting plate, and the floating oil is discharged by the submersible pump.
It enables simple and low-cost collection and cleanup of floating oil, improving the recovery efficiency of floating oil on the water surface.
Smart Images

Figure CN224530680U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of oil spill recovery equipment, and in particular to an oil spill recovery device for a water tank. Background Technology
[0002] In the metallurgical industry, especially in high-temperature production equipment such as continuous casting machines and rolling mills, bearings, pins, and other components require lubrication. During the lubrication process, some oil inevitably leaks out of the equipment and onto the ground beneath it. Hydraulic equipment is also widely used, and leaks in hydraulic cylinders and pipes are a common occurrence.
[0003] High-temperature equipment requires water cooling. When the open-circuit cooling water flows across the surface, it carries away the oil, which eventually collects in a vortex well and is then pumped to subsequent water treatment facilities. The most common water treatment facility is a water tank. After the water pump returns to the tank, the flow rate decreases, and impurities such as iron filings in the water are treated with chemicals and sink to the bottom of the tank. The oil emulsifies and separates in the water, then floats on the surface. How to remove this floating oil from the water is a problem that urgently needs to be solved. Utility Model Content
[0004] In order to solve the problems existing in the prior art, the present invention provides a water tank floating oil recovery device.
[0005] The oil floating recovery device for water tanks provided by this utility model adopts the following technical solution:
[0006] An oil spill recovery device for a water tank includes a vertically arranged oil collection tank, a submersible pump installed inside the oil collection tank, an oil inlet on the side of the oil collection tank facing the water inlet of the water tank, floats fixed to both sides of the oil collection tank, the two floats and the oil collection tank forming a V-shaped structure, a horizontally arranged trapezoidal connecting plate fixed between the bottom wall of the float and the side wall of the oil collection tank, the lowest position of the oil inlet being flush with the upper surface of the trapezoidal connecting plate; it also includes a positioning mechanism for restricting the lateral movement of the oil collection tank and floats and allowing only vertical movement.
[0007] By adopting the above technical solution, the forward flow of water carries the floating oil into the recovery device. The two float pipes guide and collect the floating oil and float the recovery device. The trapezoidal connecting plate separates the oil and water. The floating oil enters the oil collection tank through the oil inlet and is discharged by a submersible pump. This recovery device is simple to manufacture, low in cost, and can effectively collect and clean up floating oil on the water surface.
[0008] Preferably, the positioning mechanism includes positioning rings fixed to the outer walls of the oil collection tank and the float pipe on the side away from the oil inlet, respectively, and a crossbeam is installed between the top of the side wall of the water tank, with a positioning rod vertically fixed on the crossbeam and passing through the positioning ring.
[0009] By adopting the above technical solution, a positioning rod is suspended below the crossbeam and passes through the positioning ring. The oil collection tank and the float pipe can only move up and down with the rise and fall of the water level, but cannot move laterally.
[0010] Preferably, the positioning rod is made of steel pipe.
[0011] By adopting the above technical solution, steel pipes are easy to source and manufacture, and the cost is low.
[0012] Preferably, an installation plate is fixed to the end of the float pipe away from the oil collection tank, and a sealing plate is installed on the installation plate, with the sealing plate overlapping the side wall of the water tank.
[0013] By adopting the above technical solution, the floating oil is effectively blocked from passing through the gap between the floating pipe and the side wall of the pool, making it easier to collect the floating oil more comprehensively.
[0014] Preferably, the sealing plate is a flexible rubber plate.
[0015] By adopting the above technical solution, the rubber sheet can easily deform elastically and fit more effectively with the side wall of the pool, thus achieving good sealing performance.
[0016] Preferably, the trapezoidal connecting plate is located 100mm below the water surface, and the height of the oil inlet is greater than 100mm.
[0017] By adopting the above technical solution, oil and water can be effectively separated.
[0018] Preferably, the maximum width of the oil inlet is 150mm.
[0019] By adopting the above technical solution, it is easy to effectively collect and collect floating oil.
[0020] Preferably, the oil collecting tank is rectangular, the float is square, the float includes a tube body, one end of the tube body is fixed to the outer wall of the oil collecting tank, and the other end of the tube body is fixed to a sealing plate.
[0021] By adopting the above technical solution, the production of oil collection tanks and floating pipes is convenient and the cost is low. Attached Figure Description
[0022] Figure 1 This is a top view of the water tank oil recovery device according to an embodiment of the present invention.
[0023] Figure 2 yes Figure 1 Sectional view along the AA direction.
[0024] Figure 3 yes Figure 1 A top view of part of the oil recovery unit in the middle water tank.
[0025] Figure 4 yes Figure 1Side view of a portion of the oil recovery unit in the greywater tank.
[0026] Explanation of reference numerals in the attached drawings: 1. Oil collection tank; 10. Oil inlet; 2. Float pipe; 20. Sealing plate; 3. Trapezoidal connecting plate; 4. Positioning mechanism; 40. Positioning ring; 41. Crossbeam; 42. Positioning rod; 5. Sealing mechanism; 50. Mounting plate; 51. Sealing plate. Detailed Implementation
[0027] The following combination Figures 1-4 The present invention will be described in further detail below.
[0028] This utility model discloses a device for recovering floating oil in a water tank.
[0029] Reference Figures 1-4 The main body of the oil spill recovery device is made of 3mm thick stainless steel plate. It includes a rectangular oil collection tank 1, which is set vertically. A rectangular oil inlet 10 is opened on the side of the oil collection tank facing the water inlet of the pool. The maximum width of the oil inlet 10 is 150mm and the height of the oil inlet 10 is greater than 100mm. A submersible pump for pumping out floating oil is installed inside the oil collection tank 1.
[0030] A float pipe 2 is fixedly connected to each of the left and right sides of the oil collecting tank 1. The float pipe 2 is square-shaped and includes a pipe body. One end of the pipe body is fixed to the outer wall of the oil collecting tank 1, and the other end of the pipe body is fixed to a sealing plate 20, which serves to seal the surface. By setting up the float pipes 2, the recovery device can float on the water surface as a whole. The two float pipes 2 and the oil collecting tank 1 form a V-shaped structure to facilitate the collection of floating oil and its entry into the oil collecting tank 1 through the oil inlet 10.
[0031] The overall width of the recovery device is smaller than the width of the pool. A horizontally arranged trapezoidal connecting plate 3 is welded between the bottom of the two floats 2 and the side of the oil collection tank 1. The trapezoidal connecting plate 3 is located 100mm below the water surface. The lowest position of the oil inlet 10 is flush with the upper surface of the trapezoidal connecting plate 3. The trapezoidal connecting plate 3 plays the role of separating oil and water and increasing the connection strength between the floats 2 and the oil collection tank 1.
[0032] A positioning mechanism 4 is provided on the water tank to restrict the lateral movement of the recovery device. The positioning mechanism 4 includes positioning rings 40 welded to the outer walls of the oil collection tank 1 and the float pipe 2 on the side away from the oil inlet 10. A crossbeam 41 spanning the water tank is fixedly installed between the tops of the side walls of the two water tanks. A vertically suspended positioning rod 42 is welded on the crossbeam 41. The positioning rod 42 can be made of steel pipe. The positioning rod 42 passes through the positioning ring 40 at the corresponding position. The outer diameter of the positioning rod 42 is smaller than the inner diameter of the positioning ring 40, so as to ensure that the recovery device cannot move laterally as the water level rises and falls normally.
[0033] The end of the float pipe 2 away from the oil collection tank 1 is also provided with a sealing mechanism 5 for sealing the gap between the float pipe 2 and the side wall of the pool. The sealing mechanism 5 includes a mounting plate 50 vertically welded to the end of the float pipe 2. The surface of the mounting plate 50 is perpendicular to the surface of the pool wall. A sealing plate 51 is bolted to the mounting plate 50. The sealing plate 51 is elastic, for example, a rubber plate. The end of the sealing plate 51 elastically overlaps the side wall of the pool, thereby effectively preventing the floating oil from passing through the gap between the float pipe 2 and the side wall of the pool, which facilitates more comprehensive collection of the floating oil.
[0034] The implementation principle of the oil recovery device for water tanks in this embodiment of the utility model is as follows: the recovery device is placed in the water tank, with the oil inlet 10 corresponding to the direction of water flow. The recovery device floats on the water. The crossbeam 41 is fixed to the side wall of the water tank. The positioning rod 42 is vertically inserted into the positioning ring 40. The top of the positioning rod 42 is welded and fixed to the crossbeam 41, thereby completing the limitation of the horizontal position of the recovery device. The vertical position of the recovery device is dynamically adjusted as the water level rises and falls.
[0035] The water flows forward, carrying the floating oil into the recovery device. The sealing plate 51 prevents the floating oil from passing through the side wall of the pool. The two float pipes 2 guide and collect the floating oil, and the trapezoidal connecting plate 3 separates the oil and water. The floating oil enters the oil collection tank 1 through the oil inlet 10 and is discharged by a submersible pump. This recovery device is simple to manufacture, low in cost, and can effectively collect and clean up floating oil on the water surface.
[0036] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A device for recovering floating oil from a water tank, characterized in that: It includes a vertically arranged oil collection tank (1), a submersible pump installed inside the oil collection tank (1), an oil inlet (10) on the side of the oil collection tank (1) facing the water inlet of the pool, floats (2) fixed to both sides of the oil collection tank (1), the two floats (2) and the oil collection tank (1) forming a V-shaped structure, a horizontally arranged trapezoidal connecting plate (3) fixed between the bottom wall of the floats (2) and the side wall of the oil collection tank (1), and the lowest position of the oil inlet (10) is flush with the upper surface of the trapezoidal connecting plate (3); it also includes a positioning mechanism (4) for restricting the horizontal movement of the oil collection tank (1) and the floats (2) and allowing only their vertical movement.
2. The oil spill recovery device for a water tank according to claim 1, characterized in that: The positioning mechanism (4) includes a positioning ring (40) fixed to the outer wall of the oil collection tank (1) and the float pipe (2) on the side away from the oil inlet (10), and a crossbeam (41) is installed between the top of the side wall of the pool. A positioning rod (42) is vertically fixed on the crossbeam (41) and passes through the positioning ring (40).
3. The oil spill recovery device for a water tank according to claim 2, characterized in that: The positioning rod (42) is a steel pipe.
4. The oil spill recovery device for a water tank according to claim 1, characterized in that: An installation plate (50) is fixed to the end of the float pipe (2) away from the oil collection tank (1). A sealing plate (51) is installed on the installation plate (50) and overlaps with the side wall of the water tank.
5. The oil spill recovery device for a water tank according to claim 4, characterized in that: The sealing plate (51) is an elastic rubber plate.
6. The oil spill recovery device for a water tank according to claim 1, characterized in that: The trapezoidal connecting plate (3) is located 100 mm below the water surface, and the height of the oil inlet (10) is greater than 100 mm.
7. The oil spill recovery device for a water tank according to claim 1, characterized in that: The maximum width of the oil inlet (10) is 150 mm.
8. The oil spill recovery device for a water tank according to claim 1, characterized in that: The oil collection tank (1) is rectangular, and the float pipe (2) is square. The float pipe (2) includes a pipe body, one end of which is fixed to the outer wall of the oil collection tank (1), and the other end of which is fixed to a sealing plate (20).