Oil absorption device for oil-containing wastewater treatment

Abstract

The utility model relates to an oil absorption device for oily wastewater treatment, which comprises an oil removal tank, a water inlet is arranged at the bottom of the oil removal tank, a water outlet is arranged at the top of the oil removal tank, a detachable oil absorption component is arranged in the oil removal tank, a horizontal support plate is arranged in the oil removal tank, a plurality of positioning holes are arranged on the support plate, and the positioning holes are communicated with the oil removal tank. The oil absorption assembly comprises an oil absorption cylinder, an oil absorption cavity is defined by a top plate, a cylinder body and a bottom plate of the oil absorption cylinder, and an oil absorption material layer is arranged in the oil absorption cavity; water holes are formed in the top plate and the cylinder body, the top plate is in sliding fit with the cylinder body, a hole sealing plate is arranged on the inner side of the top plate, the hole sealing plate is fixedly connected with an adjusting shaft, and the adjusting shaft penetrates through the top plate and is in running fit with the top plate; and each oil suction cylinder is mounted in one positioning hole. According to the oil absorption barrel, the oil absorption material layer does not need to be taken out from the oil absorption barrel, and oil removal is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water treatment equipment field especially an oil absorption device for oily wastewater treatment. BACKGROUND

[0002] The restaurant wastewater and part of industrial wastewater all contain a large amount of grease, and the grease forms an oil film on the water surface, which hinders the oxygen in the air from dissolving in the water, leading to the lack of oxygen in the water body, and the conventional aquatic organisms are difficult to survive. In addition, the oily wastewater seeps into the soil, affecting the soil aeration and water exchange. Therefore, the oily wastewater must be treated before being discharged into the natural water body.

[0003] Since the density of the grease is usually lower than that of water, the wastewater can be layered by standing, and the grease with smaller density floats to the surface of the wastewater, so as to separate the grease. The standing layering can remove most of the grease, and a small amount of grease remains in the wastewater, which is difficult to remove by standing layering. Therefore, after standing layering, the oil absorption material can be used to absorb the grease in the wastewater, so as to ensure the removal rate of the grease. When the oil absorption material reaches or approaches saturation, the oil absorption material needs to be replaced. In order to reduce the cost, the oil absorption material is usually made of a material that can be repeatedly used, that is, the oil absorption material is squeezed to remove the oil, and then the oil absorption material is used again. In the prior art, it is not convenient to remove the oil from the oil absorption material. SUMMARY

[0004] The utility model wants to solve the technical problem of providing an oil absorption device for oily wastewater treatment, which can more conveniently remove the oil from the oil absorption material.

[0005] To solve the above problems, the utility model adopts the technical scheme of: an oil absorption device for oily wastewater treatment, comprising an oil removal tank, a water inlet is arranged at the bottom of the oil removal tank, and a water outlet is arranged at the top of the oil removal tank, a detachable oil absorption assembly is arranged in the oil removal tank,

[0006] A horizontal support plate is arranged in the oil removal tank, a plurality of positioning holes are arranged on the support plate, the oil absorption assembly comprises an oil absorption cylinder, the oil absorption cylinder is surrounded by a top plate, a cylinder body and a bottom plate to form an oil absorption cavity, and an oil absorption material layer is arranged in the oil absorption cavity; water holes are arranged on the top plate and the cylinder body, the top plate and the cylinder body are in sliding cooperation, a hole sealing plate is arranged on the inner side of the top plate, the hole sealing plate is fixedly connected with an adjusting shaft, the adjusting shaft penetrates through the top plate and is in rotary cooperation with the top plate; and each oil absorption cylinder is installed in a positioning hole.

[0007] Further, a limiting ring plate is arranged at the top of the cylinder body, and the edge of the top plate is located on the inner side of the limiting ring plate.

[0008] Further, a limiting boss is fixedly arranged on the adjusting shaft, and the top plate is located between the limiting boss and the hole sealing plate.

[0009] Further, the inner wall of the barrel body is provided with an axially extending sliding groove, and the edge of the top plate is provided with a guide boss which is located in the sliding groove and in sliding fit with the sliding groove.

[0010] Further, the limiting ring plate is mounted on the support plate by screws.

[0011] Further, the positioning hole is provided with a positioning cylinder, the barrel body is located in the positioning cylinder and in sliding fit with the positioning cylinder, the lower end of the barrel body extends out of the positioning cylinder, and a sealing plate is arranged below the positioning cylinder, the sealing plate is connected with the support plate by a tension spring, and the sealing plate contacts the lower surface of the bottom plate.

[0012] Further, the upper surface of the sealing plate is provided with an elastic sealing gasket.

[0013] Further, the oil absorption material layer is a graphene oil absorption sponge layer.

[0014] The beneficial effects of the present application are as follows: when the oil absorption material layer reaches or approaches saturation, the oil absorption cylinder is disassembled from the support plate, then the adjusting shaft is rotated, the adjusting shaft drives the hole sealing plate to rotate, the hole sealing plate closes the water hole on the top plate, then the top plate is pushed to move towards the oil absorption material layer, the oil absorption material layer is extruded by the top plate, and the absorbed oil is extruded out, the oil absorption cylinder can be installed into the positioning hole again, and reuse is realized. In the present application, the oil absorption material layer does not need to be taken out of the oil absorption cylinder, and oil removal is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall front view schematic diagram of the present application;

[0016] Figure 2 is the bottom view schematic diagram of the hole sealing plate when absorbing oil;

[0017] Figure 3 is the bottom view schematic diagram of the hole sealing plate when removing oil;

[0018] Figure 4 is the top view sectional view schematic diagram of the top plate;

[0019] Fig. 1 is an oil removal tank; 2 is a water inlet; 3 is a water outlet; 4 is a support plate; 5 is a top plate; 6 is a barrel body; 7 is a bottom plate; 8 is an oil absorption material layer; 9 is a hole sealing plate; 10 is an adjusting shaft; 11 is a limiting ring plate; 12 is a limiting boss; 13 is a guide boss; 14 is a positioning cylinder; 15 is a sealing plate; 16 is a tension spring; 17 is an elastic sealing gasket. DETAILED DESCRIPTION

[0020] The present application is further described below in combination with the drawings and examples.

[0021] The utility model discloses an oil absorption device for oil-containing wastewater treatment, as shown in the figure, Figure 1 、 Figure 2 and Figure 3 , including the oil removal tank 1, the oil removal tank 1 can adopt the circular metal tank body, inside and outside spray anticorrosive paint, to improve the corrosion resistance. The oil removal tank 1 top sets up the detachable top cover, closes the oil removal tank 1, prevents the impurity of outside from falling into the oil removal tank 1. The bottom of oil removal tank 1 is provided with water inlet 2, for the admission of wastewater, the top of oil removal tank 1 is provided with water outlet 3, for discharging the wastewater after oil removal. The oil removal tank 1 is provided with detachable oil absorption assembly in, and the oil absorption assembly is used for absorbing the grease in wastewater.

[0022] The oil removal tank 1 is provided with horizontal support plate 4, and the support plate 4 is fixedly arranged, and the support plate 4 is lower than the water outlet 3, and a plurality of positioning holes are arranged on the support plate 4, and the positioning holes are used for positioning the oil absorption assembly. The oil absorption assembly includes an oil absorption cylinder, and the number of the oil absorption cylinder is the same as that of the positioning hole. The oil absorption cylinder is surrounded by the top plate 5, the cylinder body 6 and the bottom plate 7 to form an oil absorption cavity, the cylinder body 6 is a circular cylinder, and the bottom plate 7 is fixed to the lower end of the cylinder body 6. An oil absorption material layer 8 is arranged in the oil absorption cavity, and the oil absorption material layer 8 is used for absorbing oil in wastewater. Water holes are arranged on the top plate 5 and the cylinder body 6, and wastewater can pass in and out of the oil absorption cylinder through the water holes. The bottom plate 7 is not provided with a water hole. The top plate 5 and the cylinder body 6 are in sliding fit, so that the top plate 5 can slide along the axial direction of the cylinder body 6. The inner side of the top plate 5 is provided with a hole sealing plate 9, the hole sealing plate 9 can close all the water holes on the top plate 5, the hole sealing plate 9 is fixedly connected with an adjusting shaft 10, and the adjusting shaft 10 penetrates through the top plate 5 and is in rotary fit with the top plate 5. When the adjusting shaft 10 is rotated, the hole sealing plate 9 can be driven to rotate, so as to adjust the position of the hole sealing plate 9, so that the hole sealing plate 9 covers all the water holes on the top plate 5, or the hole sealing plate 9 avoids the water holes. Each oil absorption cylinder is installed in a positioning hole.

[0023] When the utility model is used, the hole sealing plate 9 is in the position of not covering the water holes of the top plate 5. The oil-containing wastewater is introduced into the oil removal tank 1 through the water inlet 2, the wastewater enters the oil absorption cylinder through the water holes on the cylinder body 6, and then flows upward, when the wastewater passes through the oil absorption material layer 8, the oil in the water is absorbed by the oil absorption material layer 8, and the oil removal is realized. After the wastewater passes through the oil absorption material layer 8, it is discharged from the water holes on the top plate 5, and finally discharged from the water outlet 3. When the oil absorption material layer 8 reaches saturation after absorbing oil, the oil absorption cylinder is taken out as a whole, then the adjusting shaft 10 is rotated, the adjusting shaft 10 drives the hole sealing plate 9 to rotate, so that the hole sealing plate 9 closes the water holes on the top plate 5, then the top plate 5 is pushed towards the oil absorption material layer 8, the oil absorption material layer 8 is extruded by the top plate 5, and the oil absorbed by the oil absorption material layer 8 is pressed out, the pressed oil is discharged through the water holes on the cylinder body 6, and the oil absorption material layer 8 is deoiled. After deoiling, the top plate 5 is reset, and the oil absorption cylinder can be used again.

[0024] The oil absorption material layer 8 can be removed without being taken out, and the oil absorption cylinder can be directly installed in the positioning hole for reuse after oil removal, so that the oil absorption cylinder is convenient to operate and maintain.

[0025] In order to prevent the top plate 5 from moving out of the barrel body 6, a limiting ring plate 11 is arranged at the top of the barrel body 6, and the edge of the top plate 5 is located inside the limiting ring plate 11. The limiting ring plate 11 is a circular plate and can be installed on the barrel body 6 through screws. The limiting ring plate 11 limits the top plate 5, so that the top plate 5 is always inside the barrel body 6.

[0026] The adjusting shaft 10 is in clearance fit with the top plate 5. In order to keep the axial position of the hole sealing plate 9 and the adjusting shaft 10 stable, a limiting boss 12 is fixedly arranged on the adjusting shaft 10, and the top plate 5 is located between the limiting boss 12 and the hole sealing plate 9. The limiting boss 12 can limit the axial position of the adjusting shaft 10, and the adjusting shaft 10 can only rotate but cannot move axially, so that the axial position of the hole sealing plate 9 and the adjusting shaft 10 is fixed.

[0027] The inner wall of the barrel body 6 is provided with an axially extending sliding groove, and the edge of the top plate 5 is provided with a guide boss 13 located in the sliding groove and in sliding fit with the sliding groove. The sliding groove and the guide boss 13 can be two, three or four. When the oil absorption material layer 8 is extruded and deoiled, the guide boss 13 slides along the sliding groove, plays a guiding and positioning role, and ensures the stability of the movement of the top plate 5.

[0028] In the utility model, the limiting ring plate 11 is installed on the supporting plate 4 through screws, and is convenient to disassemble and assemble.

[0029] After the oil absorption cylinder is removed, in order to close the positioning hole in time and conveniently, so as to prevent waste water from passing through the positioning hole without being absorbed, the utility model sets up a positioning cylinder 14 in the positioning hole, the barrel body 6 is located in the positioning cylinder 14 and is in sliding fit with the positioning cylinder 14, the lower end of the barrel body 6 extends out of the positioning cylinder 14, a sealing plate 15 is arranged below the positioning cylinder 14, the sealing plate 15 is connected with the supporting plate 4 through a tension spring 16, and the sealing plate 15 contacts the lower surface of the bottom plate 7. When the device normally absorbs oil, the lower end of the barrel body 6 extends out of the positioning cylinder 14, and waste water can enter the barrel body 6 through the water hole in the lower part of the barrel body 6. The tension spring 16 is always in an elongated state and exerts a certain tension on the sealing plate 15. When the oil absorption cylinder is removed, the tension spring 16 can automatically pull the sealing plate 15 to move upward, so that the sealing plate 15 closes the lower end of the positioning cylinder 14, preventing waste water without oil removal from entering the positioning cylinder 14. When the oil absorption cylinder is installed, a downward pressure is exerted on the oil absorption cylinder, the bottom plate 7 of the oil absorption cylinder pushes the sealing plate 15 to move downward, and the tension spring 16 is elongated.

[0030] In order to improve the sealing performance of the sealing plate 15, the upper surface of the sealing plate 15 is provided with an elastic sealing pad 17, which can be a rubber pad or the like.

[0031] In the utility model, the oil absorption material layer 8 is a graphene oil absorption sponge layer. The graphene oil absorption sponge has low cost and can be reused after extrusion. The graphene oil absorption sponge can be made into granular form and then loaded into the oil absorption cavity. The graphene oil absorption sponge does not fill the oil absorption cavity and leaves appropriate space.

[0032] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An oil absorption device for treating oily wastewater, comprising an oil removal tank (1), a water inlet (2) is arranged at the bottom of the oil removal tank (1), a water outlet (3) is arranged at the top of the oil removal tank (1), and a detachable oil absorption assembly is arranged in the oil removal tank (1), characterized in that: a horizontal support plate (4) is arranged in the oil removal tank (1), a plurality of positioning holes are arranged on the support plate (4), the oil absorption assembly comprises an oil absorption cylinder, the oil absorption cylinder comprises a top plate (5), a cylinder body (6) and a bottom plate (7) to form an oil absorption cavity, and an oil absorption material layer (8) is arranged in the oil absorption cavity; water holes are arranged on the top plate (5) and the cylinder body (6), the top plate (5) and the cylinder body (6) are in sliding fit, a hole sealing plate (9) is arranged on the inner side of the top plate (5), the hole sealing plate (9) is fixedly connected with an adjusting shaft (10), the adjusting shaft (10) penetrates through the top plate (5) and is in rotational fit with the top plate (5), and each oil absorption cylinder is installed in a positioning hole. A limiting ring plate (11) is arranged at the top of the cylinder body (6), and the edge of the top plate (5) is located inside the limiting ring plate (11).

2. The oil absorption device for oil-containing wastewater treatment according to claim 1, characterized by: A limiting boss (12) is fixedly arranged on the adjusting shaft (10), and the top plate (5) is located between the limiting boss (12) and the hole sealing plate (9).

3. The oil absorption device for oil-containing wastewater treatment according to claim 1, characterized by: An axially extending sliding groove is arranged on the inner wall of the cylinder body (6), and a guide boss (13) is arranged on the edge of the top plate (5), the guide boss (13) is located in the sliding groove and is in sliding fit with the sliding groove.

4. The oil absorption device for oil-containing wastewater treatment according to claim 1, characterized by: The limiting ring plate (11) is installed on the support plate (4) by screws.

5. The oil absorption device for oil-containing wastewater treatment according to claim 2, characterized by: A positioning cylinder (14) is arranged in the positioning hole, the cylinder body (6) is located in the positioning cylinder (14) and is in sliding fit with the positioning cylinder (14), the lower end of the cylinder body (6) extends out of the positioning cylinder (14), a sealing plate (15) is arranged below the positioning cylinder (14), the sealing plate (15) is connected with the support plate (4) by a tension spring (16), and the sealing plate (15) contacts the lower surface of the bottom plate (7).

6. The oil absorption device for oil-containing wastewater treatment according to claim 1, characterized by: An elastic sealing gasket (17) is arranged on the upper surface of the sealing plate (15).

7. The oil absorption device for oil-containing wastewater treatment according to claim 6, characterized by: The oil absorption material layer (8) is a graphene oil absorption sponge layer.

8. The oil absorption device for oil-containing wastewater treatment according to claim 1, characterized by: ​

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