Oil-water separation device

Abstract

The utility model discloses an oil-water separating device which comprises a separating tank, a residue filtering basket, a plurality of filtering plates, a separating plate, a plurality of oil discharging valves and a water discharging valve, the residue filtering basket is hung on one side of the upper end of the separation tank; a filter screen for intercepting residues is arranged on the residue filtering basket and is positioned in the separation tank; the filter plates are transversely arranged in the separation tank at intervals and divide the separation tank into a plurality of areas; a screen is arranged on the filter plate; the aperture of the screen is gradually reduced step by step, and the aperture of the screen close to the residue filtering basket is maximum; the separating plate is arranged in the separating tank and is positioned on one side, far away from the residue filtering basket, of the screen with the minimum aperture; the separation plate only allows water molecules to pass through, and oil and water are thoroughly separated through the separation plate; the oil discharge valve is respectively communicated with the areas separated by the filter plates, and oil particles with various particle sizes are discharged through the oil discharge valve; and the drain valve is arranged on the separation tank on one side farthest from the residue filtering basket, and water is drained through the drain valve.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-water separation, in particular to an oil-water separation device. Background Art

[0002] The main working principle of the oil-water separator is gravity sedimentation, that is, because oil is less dense than water, they can be separated into layers by gravity to form two liquid phases with oil on the upper layer and water on the lower layer.

[0003] The common oil-water separators on the market not only have slow filtering efficiency and difficulty in cleaning the filter residue, but also the separated oil and fat composition is very complex, and more factors need to be considered when undergoing other processing procedures. Utility Model Content

[0004] The purpose of the utility model is to provide an oil-water separation device, which can not only filter and quickly process filter residues, but also further classify various components in oil and fat according to certain sizes during the oil-water separation process, making subsequent processing more convenient.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An oil-water separation device comprises a separation tank, a filter residue basket, a plurality of filter plates, a separation plate, a plurality of oil drain valves and a water drain valve; the filter residue basket is hung on one side of the upper end of the separation tank; a filter screen for intercepting residue is arranged on the filter residue basket, and the filter screen is located in the separation tank; the filter plates are arranged in the separation tank at horizontal intervals to divide it into a plurality of areas; a screen is arranged on the filter plate; the aperture of the screen decreases step by step, and the aperture of the screen close to the filter residue basket is the largest; the separation plate is arranged in the separation tank, and the separation plate is located on the side of the screen with the smallest aperture away from the filter residue basket; the separation plate only allows water molecules to pass through, and oil and water are completely separated by the separation plate; the oil drain valve is respectively connected to the areas separated by each filter plate, and oil particles of various particle sizes are discharged through the oil drain valve; the water drain valve is arranged on the separation tank farthest from the filter residue basket, and water is discharged through the water drain valve.

[0007] Furthermore, it also includes a limiting component for clamping the filter residue basket; the limiting component is arranged on the side wall of the separation tank and is located outside the filter residue basket after hanging.

[0008] Furthermore, the limit assembly includes a moving block, a limit rod, a fixed plate, a pushing plate and a clamping spring; a groove is provided at the lower end of the moving block, and the upper end of the separation groove is embedded in the groove; a limit groove is provided at the end of the moving block away from the filter residue basket; the fixed plate is fixed to the outer wall of the upper end of the separation groove; one end of the limit rod is embedded in the limit groove, and the other end of the limit rod is passed through the fixed plate; the pushing plate is fixed on the limit rod, and the pushing plate is located on the side of the fixed plate close to the filter residue basket; the clamping spring is sleeved on the limit rod between the fixed plate and the pushing plate, and the filter residue basket is clamped by pushing the limit rod to move horizontally through the clamping spring.

[0009] Furthermore, the filter residue basket is in an inverted "convex" shape; the upper end of the filter residue basket is open and the inside is hollow, and the filter residue basket is hung on the upper end of the separation tank through the convex edges on both sides of the filter residue basket; the filter screen is arranged at the bottom of the filter residue basket and the side that is not in contact with the inner side wall of the separation tank, and the residue is intercepted by the filter screen.

[0010] Furthermore, there are three filter plates, namely the first filter plate, the second filter plate, and the third filter plate; the interior of the separation tank is divided into five areas by the filter plates and the separation plates.

[0011] Furthermore, a separation layer is provided on the separation plate.

[0012] Furthermore, the separation layer is made of a hydrophilic and oleophobic material.

[0013] Furthermore, the mesh diameter of the first filter plate is 1 mm.

[0014] Furthermore, the mesh diameter of the second filter plate is 100 μm.

[0015] Furthermore, the mesh diameter of the third filter plate is 100 nm.

[0016] After adopting the above technical solution, the utility model has the following beneficial effects:

[0017] 1. The utility model is provided with a filter residue basket in an inverted "convex" shape, with an upper opening for the entry of residues, and the two sides are hung on the upper end of the separation tank through convex edges, which not only ensures stable installation, but also facilitates disassembly and cleaning; filter screens are arranged at the bottom of the filter residue basket and the side wall of the non-contact separation tank. When the residue is deposited under the action of gravity, the filter screens on the side walls of the filter residue basket can still allow the liquid to flow rapidly, and can effectively intercept and collect large particles of residue in the sewage, solving the problem of slow filtration efficiency and difficult residue cleaning of traditional oil-water separators; the utility model first drains the water, and then drains the oil in the order of oil particles from small to large.

[0018] 2. The utility model provides a limit assembly on the separation tank, the design of which ensures the stability of the filter residue basket during use, and avoids the separation effect affected by the change of the position of the filter residue basket due to vibration or shaking; in addition, through the joint action of the limit rod, the limit groove, the clamping spring and the push plate and other components, the filter residue basket can be clamped on the separation tank and conveniently disassembled, thereby enhancing the overall structural stability and operational reliability of the device; when the filter residue basket is placed on the separation tank, the moving block clamps the limit rod into the limit groove through the clamping spring, so that the limit assembly cannot move up and down; by embedding the upper end of the separation tank into the groove, the limit assembly cannot move left and right; when the filter residue basket needs to be removed, it only needs to pull the limit rod to make it disengage from the limit groove, and the filter residue basket can be easily removed.

[0019] 3. The utility model has three filter plates arranged inside the separation tank, namely the first, second and third filter plates. Each filter plate is provided with screens of different apertures, and the apertures decrease step by step from left to right (1mm, 100μm, 100nm), thereby realizing the gradual screening of the particle size of oil droplets. This structure enables the oil droplets with larger particle sizes to be first intercepted by the first filter plate when the sewage flows through each area, and the oil droplets with smaller particle sizes are then separated by the second and third filter plates, thereby realizing the refined classification of the oil components, which is beneficial to the subsequent targeted processing of oil droplets with different particle sizes.

[0020] 4. The utility model adds a separation plate in the separation tank. The separation layer arranged on the separation plate is made of hydrophilic and oleophobic material, which can effectively promote the complete separation of the oil and water phases to avoid oil droplets being entrained in the water or water droplets being mixed in the oil; this design enhances the separation effect and ensures that the oil phase and water phase finally discharged have higher purity.

[0021] 5. The utility model is equipped with an oil drain valve connected to each separation area and a water drain valve connected to the right area of ​​the separation plate. These valves allow the operator to discharge the separated oil phase and the pure water after separation, thereby achieving precise control of the oil-water separation process and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0024] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure of A.

[0025] The reference numerals in the figure represent:

[0026] 1. Separation tank; 2. Filter basket; 20. Filter screen; 21. Raised edge; 3. Filter plate; 30. Screen; 31. First filter plate; 32. Second filter plate; 33. Third filter plate; 4. Separation plate; 40. Separation layer; 5. Oil drain valve; 6. Drain valve; 7. Limiting assembly; 70. Moving block; 700. Groove; 701. Limiting slot; 71. Limiting rod; 72. Fixed plate; 73. Pushing plate; 74. Compression spring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] See also Figure 1 to Figure 2 An oil-water separation device comprises a separation tank 1, a filter basket 2, a plurality of filter plates 3, a separation plate 4, a plurality of oil drain valves 5 and a drain valve 6; the filter basket 2 is hung on one side of the upper end of the separation tank 1; a filter screen 20 for intercepting residues is arranged on the filter basket 2, and the filter screen 20 is located in the separation tank 1; the filter plates 3 are arranged in the separation tank 1 at intervals in the horizontal direction, dividing it into a plurality of areas; a screen 30 is arranged on the filter plate 3; the aperture of the screen 30 decreases step by step, and the filter screen 20 is arranged on the separation tank 1. The mesh 30 near the filter basket 2 has the largest aperture; the separation plate 4 is arranged in the separation tank 1, and the separation plate 4 is located on the side of the mesh 30 with the smallest aperture away from the filter basket 2; the separation plate 4 only allows water molecules to pass through, and the oil and water are completely separated by the separation plate 4; the oil drain valve 5 is respectively connected to the area separated by each filter plate 3, and oil particles of various particle sizes are discharged through the oil drain valve 5; the water drain valve 6 is arranged on the separation tank 1 farthest from the filter basket 2, and water is discharged through the water drain valve 6.

[0029] like Figure 1 and Figure 2 As shown, it also includes a limiting assembly 7 for clamping the filter residue basket 2; the limiting assembly 7 is arranged on the side wall of the separation tank 1 and is located outside the filter residue basket 2 after hanging.

[0030] like Figure 3As shown, the limiting assembly 7 includes a moving block 70, a limiting rod 71, a fixed plate 72, a pushing plate 73 and a clamping spring 74; a groove 700 is provided at the lower end of the moving block 70, and the upper end of the separation tank 1 is embedded in the groove 700; a limiting groove 701 is provided at the end of the moving block 70 away from the filter residue basket 2; the fixed plate 72 is fixed to the outer wall of the upper end of the separation tank 1; one end of the limiting rod 71 is embedded in the limiting groove 701, and the other end of the limiting rod 71 is passed through the fixed plate 72; the pushing plate 73 is fixed on the limiting rod 71, and the pushing plate 73 is located on the side of the fixed plate 72 close to the filter residue basket 2; the clamping spring 74 is sleeved on the limiting rod 71 between the fixed plate 72 and the pushing plate 73, and the limiting rod 71 is pushed by the clamping spring 74 to move horizontally to clamp the filter residue basket 2.

[0031] like Figure 1 As shown, the filter residue basket 2 is in an inverted "convex" shape; the upper end of the filter residue basket 2 is open and the inside is hollow, and the filter residue basket 2 is hung on the upper end of the separation tank 1 through the convex edges 21 on both sides of the filter residue basket 2; the filter screen 20 is arranged at the bottom of the filter residue basket 2 and the side that is not in contact with the inner side wall of the separation tank 1, and the residue is intercepted by the filter screen 20.

[0032] like Figure 1 and Figure 2 As shown, the filter plates 3 are three, namely the first filter plate 31 , the second filter plate 32 , and the third filter plate 33 ; the interior of the separation tank 1 is divided into five areas by the filter plates 3 and the separation plates 4 .

[0033] like Figure 1 As shown, a separation layer 40 is disposed on the separation plate 4; the separation layer 40 is made of a hydrophilic and oleophobic material.

[0034] like Figure 1 As shown, the diameter of the mesh 30 of the first filter plate 31 is 1 mm; the diameter of the mesh 30 of the second filter plate 32 is 100 μm; and the diameter of the mesh 30 of the third filter plate 33 is 100 μm.

[0035] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An oil-water separation device, characterized in that: The invention comprises a separation tank (1), a filter residue basket (2), a plurality of filter plates (3), a separation plate (4), a plurality of oil drain valves (5) and a water drain valve (6); the filter residue basket (2) is hung on one side of the upper end of the separation tank (1); a filter screen (20) for intercepting residue is arranged on the filter residue basket (2), and the filter screen (20) is located in the separation tank (1); the filter plates (3) are arranged in a transverse interval inside the separation tank (1) to divide the separation tank (1) into a plurality of areas; a screen (30) is arranged on the filter plate (3); the aperture of the screen (30) decreases step by step, and the aperture increases as the filter residue basket increases. (2) has the largest aperture; the separation plate (4) is arranged in the separation tank (1), and the separation plate (4) is located on the side of the screen (30) with the smallest aperture away from the filter basket (2); the separation plate (4) only allows water molecules to pass through, and the oil and water are completely separated by the separation plate (4); the oil discharge valve (5) is respectively connected to the area separated by each filter plate (3), and oil particles of various particle sizes are discharged through the oil discharge valve (5); the water discharge valve (6) is arranged on the side of the separation tank (1) farthest from the filter basket (2), and water is discharged through the water discharge valve (6).

2. The oil-water separation device according to claim 1, characterized in that: It also comprises a limiting assembly (7) for clamping the filter residue basket (2); the limiting assembly (7) is arranged on the side wall of the separation tank (1) and is located outside the filter residue basket (2) after being hung.

3. The oil-water separation device according to claim 2, characterized in that: The limiting assembly (7) comprises a moving block (70), a limiting rod (71), a fixing plate (72), a pushing plate (73) and a pressing spring (74); a groove (700) is provided at the lower end of the moving block (70), and the upper end of the separation tank (1) is embedded in the groove (700); a limiting groove (701) is provided at one end of the moving block (70) away from the filter residue basket (2); the fixing plate (72) is fixed to the outer wall of the upper end of the separation tank (1); the limiting rod (71 ) is embedded in the limiting groove (701), and the other end of the limiting rod (71) is passed through the fixed plate (72); the pushing plate (73) is fixed on the limiting rod (71), and the pushing plate (73) is located on the side of the fixed plate (72) close to the filter residue basket (2); the clamping spring (74) is sleeved on the limiting rod (71) between the fixed plate (72) and the pushing plate (73), and the limiting rod (71) is pushed by the clamping spring (74) to move horizontally to clamp the filter residue basket (2).

4. The oil-water separation device according to claim 1, characterized in that: The filter residue basket (2) is in the shape of an inverted "convex" character; the filter residue basket (2) is open at the upper end and hollow inside, and the filter residue basket (2) is hung on the upper end of the separation tank (1) by means of convex edges (21) on both sides of the filter residue basket (2); the filter screen (20) is arranged at the bottom of the filter residue basket (2) and at the side not in contact with the inner side wall of the separation tank (1), and the residue is intercepted by the filter screen (20).

5. The oil-water separation device according to claim 1, characterized in that: The filter plates (3) are three in number, namely a first filter plate (31), a second filter plate (32), and a third filter plate (33) in sequence; the interior of the separation tank (1) is divided into five areas by the filter plates (3) and the separation plates (4).

6. The oil-water separation device according to claim 1, characterized in that: A separation layer (40) is provided on the separation plate (4).

7. The oil-water separation device according to claim 6, characterized in that: The separation layer (40) is made of a hydrophilic and oleophobic material.

8. The oil-water separation device according to claim 5, characterized in that: The diameter of the screen (30) of the first filter plate (31) is 1 mm.

9. The oil-water separation device according to claim 5, characterized in that: The diameter of the mesh (30) of the second filter plate (32) is 100 μm.

10. The oil-water separation device according to claim 5, characterized in that: The diameter of the mesh (30) of the third filter plate (33) is 100 nm.

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