Oil removal and skimming device for sewage treatment plant

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a deoiling and skimming device for a sewage treatment plant, which comprises a box body, the upper end of the box body is open, the lower part of the box body is fixed on a support seat through support legs, the upper part in the box body is provided with a skimming component, and the outer wall of one side of the upper end surface of the box body is provided with a support block. An annular supporting plate with the supporting block as the circle center is arranged on the outer wall of the box body on the other side, the supporting block is rotatably connected with a lifting assembly, the other side of the lifting assembly is connected with the supporting plate through an operation assembly, oil removal assemblies are arranged on the lower portion in the box body, a sewage outlet is formed in the lower portion of the box body, and the sewage outlet is connected with a sewage flowing pipe. The skimming assembly and the oil removal assembly are connected together and can be taken out through the lifting assembly, slag removal is facilitated, the oil removal assembly removes oil for multiple times, and the oil removal effect is good.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an oil removal and slag skimming device for wastewater treatment plants. Background Technology

[0002] Wastewater treatment plants are places where wastewater discharged from pollution sources, due to its high total amount or concentration of pollutants, fails to meet discharge standards or environmental capacity requirements, thereby reducing water quality and functional objectives. Artificial enhanced treatment is necessary in these plants. Wastewater treatment requires the removal of oil and impurities. Skimming typically involves using filters, but this is inconvenient for cleaning. Oil removal using degreasing cotton often results in incomplete oil removal and poor performance. Therefore, overcoming these technical problems and shortcomings is a key issue that needs to be addressed. Utility Model Content

[0003] The purpose of this invention is to overcome the defects described in the background art, thereby realizing an oil removal and slag skimming device for sewage treatment plants that is easy to clean filter residue and has a good oil removal effect.

[0004] To achieve the above-mentioned objectives, the technical solution of this utility model is as follows: an oil removal and slag skimming device for a sewage treatment plant, comprising a box body with an open top. The lower part of the box body is fixed to a support base by legs. A slag skimming assembly is provided in the upper part of the box body. A support block is provided on one outer wall of the upper surface of the box body, and an annular support plate with the support block as the center is provided on the other outer wall of the box body. A lifting assembly is rotatably connected to the support block. The other side of the lifting assembly is connected to the support plate through a running assembly. An oil removal assembly is arranged in the lower part of the box body. A sewage outlet is provided in the lower part of the box body, and a sewage flow pipe is connected to the sewage outlet.

[0005] Furthermore, the skimming assembly includes an arc-shaped skimming screen plate with an outer diameter equal to the inner diameter of the housing. A skimming connecting cylinder is connected to the upper part of the skimming screen plate, and a slag removal port is opened at the bottom of the skimming screen plate. A limiting screen plate is hinged to the lower part of the slag removal port. The limiting screen plate is fixed to the bottom of the skimming screen plate by limiting bolts. When the wastewater to be treated enters the housing, the skimming screen plate directly filters it, and the filter residue remains on the upper surface of the skimming screen plate. After skimming for a period of time, the entire skimming screen plate is removed, the limiting bolts are disassembled, and the skimming screen plate is rinsed, so that the filter residue is discharged from the slag removal port for easy cleaning.

[0006] Furthermore, the lifting assembly includes fixed frames on both sides of the housing. A guide rod is fixedly installed on the fixed frame on the upper part of the support block, and a bidirectional screw is rotatably connected to the fixed frame on the other side. The bidirectional screw is driven by a lifting transmission motor. A guide sleeve and a transmission sleeve are respectively sleeved on the guide rod and the bidirectional screw, and a connecting rod is fixed inside the guide sleeve and the transmission sleeve. The connecting rod is connected to the upper part of the skimming connecting cylinder. When the lifting transmission motor is started, it can drive the bidirectional screw to rotate, and the transmission sleeve moves upward. Under the action of the guide rod and the guide sleeve, the skimming screen moves upward, making it convenient to remove the skimming screen from the housing.

[0007] Furthermore, the support block is connected to a corresponding bracket via a rotating shaft, and the rotating shaft is driven by a rotary transmission motor.

[0008] Furthermore, the operating component includes a rotating block at the lower part of the bracket on which the bidirectional lead screw is installed, and a running wheel structure is provided at the lower part of the rotating block. A circular running track is provided on the support plate. When the rotary transmission motor is started, the bracket on this side can be driven to rotate, so that the running wheel structure moves along the running track and rotates the skimming screen to one side of the box.

[0009] Furthermore, the oil removal assembly includes an oil removal connecting cylinder and a supporting screen plate installed below the skimming screen plate. A connector is provided on the lower periphery of the supporting screen plate, and the connecting cylinder is fixed to the inner wall of the oil removal connecting cylinder by fixing bolts passing through the connector. An oil-absorbing cotton is provided on the upper part of the supporting screen plate, and a corresponding adhesive layer is provided on the supporting screen plate and the oil-absorbing cotton. When the wastewater to be treated reaches the oil-absorbing cotton, the oil-absorbing cotton absorbs the oil, and the wastewater falls through the supporting screen plate.

[0010] Furthermore, the oil-absorbing cotton on the support mesh plate is dispersed, and the positions of the oil-absorbing cotton on the support mesh plate of adjacent oil removal components are staggered, so that the oil stains that have not been absorbed are absorbed again by the oil-absorbing cotton on the support mesh plate. After multiple treatments, the oil removal effect is guaranteed.

[0011] The beneficial effects of this utility model's oil removal and skimming device for wastewater treatment plants are as follows:

[0012] 1. This utility model relates to an oil removal and sludge skimming device for wastewater treatment plants. Wastewater to be treated enters the tank, and the sludge skimming screen directly filters it. Filter residue remains on the upper surface of the screen. After skimming for a period of time, the lifting drive motor is activated, which drives the bidirectional lead screw to rotate. The transmission sleeve moves upward, and under the action of the guide rod and guide sleeve, the sludge skimming screen moves upward, completely removing the entire screen. The rotary drive motor is then activated, which drives the support on that side to rotate, causing the running wheel structure to move along the running track, rotating the sludge skimming screen to one side of the tank. The limiting bolts are then removed, and the screen is rinsed, allowing the filter residue to be discharged from the sludge removal port for easy cleaning.

[0013] 2. The wastewater treatment plant oil removal and skimming device of this utility model is equipped with multiple sets of oil removal components. When the wastewater to be treated reaches the oil-absorbing cotton, the oil-absorbing cotton absorbs the oil. The wastewater falls through the support mesh plate, and the oil-absorbing cotton on the support mesh plate is dispersed. In addition, the positions of the oil-absorbing cotton on the support mesh plate of adjacent oil removal components are staggered, so that the unabsorbed oil is absorbed again by the oil-absorbing cotton on the support mesh plate. After multiple treatments, the oil removal effect is guaranteed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the oil removal and slag skimming device for wastewater treatment plants according to this utility model;

[0015] Figure 2 This is a top view schematic diagram of the oil removal and slag skimming device for wastewater treatment plants according to this utility model;

[0016] Figure 3 This is a top view schematic diagram of the oil removal component structure of the oil removal and slag skimming device for wastewater treatment plants according to this utility model;

[0017] Figure 4 This is a top view schematic diagram of the oil removal component structure of the oil removal and skimming device for wastewater treatment plants according to this utility model.

[0018] In the diagram: 1-box body, 11-sewage outlet, 21-leg, 22-support base, 3-sewage flow pipe;

[0019] Skimming assembly: 41-skimming connecting cylinder, 42-skimming screen, 421-slag removal port, 43-limiting screen, 44-limiting bolt;

[0020] Oil removal components: 51-Support mesh plate, 52-Connector, 53-Fixing bolt, 54-Oil-absorbing cotton, 55-Adhesive layer, 56-Oil removal connecting cylinder;

[0021] Lifting assembly: 61-connecting rod, 62-fixed frame, 63-guide sleeve, 64-guide rod, 65-transmission sleeve, 66-double-acting screw, 67-lifting transmission motor;

[0022] 71-Rotating shaft, 72-Rotating drive motor, 8-Support block, 9-Support plate, 91-Running track, Running components: 101-Rotating block, 102-Running wheel structure. Detailed Implementation

[0023] The oil removal and skimming device for wastewater treatment plants of this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 limitations on this utility model.

[0025] See Figures 1-4 The wastewater treatment plant oil removal and slag skimming device of this embodiment includes a box 1 with an open top. The lower part of the box 1 is fixed to the support base 22 by legs 21. A slag skimming assembly is provided in the upper part of the box 1. The slag skimming assembly includes an arc-shaped slag skimming screen 42 with an outer diameter equal to the inner diameter of the box 1. A slag skimming connecting cylinder 41 is connected to the upper part of the slag skimming screen 42. The bottom of the slag skimming screen 42 has an opening for... A limiting screen plate 43 is hinged to the lower part of the slag outlet 421. The limiting screen plate 43 is fixed to the bottom of the skimming screen plate 42 by limiting bolts 44. When the wastewater to be treated enters the tank 1, the skimming screen plate 42 directly filters it. The filter residue remains on the upper surface of the skimming screen plate 42. After skimming for a period of time, the entire skimming screen plate 42 is removed, the limiting bolts 44 are disassembled, and the skimming screen plate 42 is rinsed, so that the filter residue is discharged from the slag outlet 421 for easy cleaning.

[0026] See Figure 1 and Figure 2 In this embodiment, a support block 8 is provided on one outer wall of the upper end face of the box 1, and an annular support plate 9 with the support block 8 as the center is provided on the other outer wall of the box 1. The support block 8 is rotatably connected to a lifting assembly. The lifting assembly includes fixed frames 62 on both sides of the box 1. A guide rod 64 is fixedly installed on the fixed frame 62 on the upper part of the support block 8, and a bidirectional screw 66 is rotatably connected to the fixed frame 62 on the other side. The bidirectional screw 66 is driven by a lifting transmission motor 67. A guide sleeve 63 and a transmission sleeve 65 are respectively sleeved on the guide rod 64 and the bidirectional screw 66, and a connecting rod 61 is fixed inside the guide sleeve 63 and the transmission sleeve 65. The connecting rod 61 is connected to the upper part of the skimming connecting cylinder 41. When the lifting transmission motor 67 is started, the bidirectional screw 66 can be driven to rotate, and the transmission sleeve 65 moves upward. Under the action of the guide rod 64 and the guide sleeve 63, the skimming screen 42 moves upward, making it convenient to remove the skimming screen 42 from the box 1.

[0027] See Figure 1 and Figure 2In this embodiment, the support block 8 is connected to the corresponding bracket via a rotating shaft 71. The rotating shaft 71 is driven by a rotary transmission motor 72. The other side of the lifting assembly is connected to the support plate 9 via a running assembly. The running assembly includes a rotating block 101 at the lower part of the bracket on which a bidirectional lead screw 66 is installed, and a running wheel structure 102 is provided at the lower part of the rotating block 101. A circular running track 91 is provided on the support plate 9. When the rotary transmission motor 72 is started, the bracket on this side can be driven to rotate, so that the running wheel structure 102 moves along the running track 91 and rotates the skimming screen 42 to one side of the box 1.

[0028] See Figures 1-4 In this embodiment, an oil removal assembly is arranged in the lower part of the housing 1. A sewage outlet 11 is provided in the lower part of the housing 1, and the sewage outlet 11 is connected to a sewage flow pipe 3. The oil removal assembly includes an oil removal connecting cylinder 56 and a supporting mesh plate 51 installed below the skimming screen 42. A connector 52 is provided on the lower periphery of the supporting mesh plate 51, and a fixing bolt 53 passes through the connector 52 and is fixed to the inner wall of the oil removal connecting cylinder 56. An oil-absorbing cotton 54 is provided on the upper part of the supporting mesh plate 51, and a corresponding adhesive layer 55 is provided on the supporting mesh plate 51 and the oil-absorbing cotton 54. When the sewage to be treated reaches the oil-absorbing cotton 54, the oil-absorbing cotton 54 absorbs the oil. The sewage falls through the supporting mesh plate 51 and is discharged from the sewage outlet 11, and then discharged to the next process through the sewage flow pipe 3.

[0029] See Figure 3 and Figure 4 In this embodiment, the oil-absorbing cotton 54 is dispersed on the support mesh plate 51, and the positions of the oil-absorbing cotton 54 are staggered on the support mesh plates 51 of adjacent oil removal components. Figure 3 and Figure 4 The method involves staggering the positions of the oil-absorbing cotton 54 on adjacent support mesh plates 51, so that unabsorbed oil stains are reabsorbed by the oil-absorbing cotton 54 on the support mesh plates 51. Through multiple treatments, the oil stain removal effect is guaranteed.

[0030] The working principle and method of this embodiment: The wastewater to be treated enters the tank 1 and is directly filtered by the skimming screen 42. The filter residue remains on the upper surface of the skimming screen 42. The wastewater passes through the skimming screen 42 and reaches the oil-absorbing cotton 54. The oil-absorbing cotton 54 absorbs the oil. The wastewater falls through the support screen 51. The oil-absorbing cotton 54 on the support screen 51 is dispersed and arranged in an alternating manner on the support screen 51 of the adjacent oil removal components. Thus, the oil that has not been absorbed is absorbed again by the oil-absorbing cotton 54 on the support screen 51. After multiple treatments, the oil removal effect is guaranteed.

[0031] After skimming for a period of time, start the lifting drive motor 67, which drives the bidirectional lead screw 66 to rotate. The transmission sleeve 65 moves upward, and under the action of the guide rod 64 and the guide sleeve 63, the skimming screen plate 42 moves upward, completely removing the entire skimming screen plate 42 and the oil removal connecting cylinder 56. Start the rotary drive motor 72, which drives the bracket on this side to rotate, so that the running wheel structure 102 moves along the running track 91, rotating the skimming screen plate 42 to one side of the box 1. Remove the limit bolt 44, rinse the skimming screen plate 42, so that the filter residue is discharged from the slag removal port 421; and remove the fixing bolt 53 from the oil removal connecting cylinder 56 and replace the new oil-absorbing cotton 54.

[0032] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "a" or "an" in the application documents of this invention does not necessarily indicate a limitation on quantity. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0033] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed by the present invention without exceeding the protection scope of the present invention.

Claims

1. An oil removal and skimming device for a wastewater treatment plant, comprising a housing, the lower part of which is fixed to a support base by legs, characterized in that: The box body is designed with an open top. A skimming component is installed in the upper part of the box body. A support block is installed on one side of the outer wall of the upper end face of the box body, and a ring-shaped support plate with the support block as the center is installed on the other side of the outer wall of the box body. The support block is rotatably connected to a lifting component. The other side of the lifting component is connected to the support plate through a running component. An oil removal component is arranged in the lower part of the box body. A sewage outlet is provided in the lower part of the box body, and the sewage outlet is connected to a sewage flow pipe.

2. The oil removal and skimming device for wastewater treatment plants according to claim 1, characterized in that: The skimming assembly includes an arc-shaped skimming screen plate with an outer diameter equal to the inner diameter of the box. A skimming connecting cylinder is connected to the upper part of the skimming screen plate, and a slag removal port is opened at the bottom of the skimming screen plate. A limiting screen plate is hinged to the lower part of the slag removal port, and the limiting screen plate is fixed to the bottom of the skimming screen plate by limiting bolts.

3. The oil removal and sludge skimming device for wastewater treatment plants according to claim 2, characterized in that: The lifting assembly includes fixed frames on both sides of the box body. A guide rod is fixedly installed on the fixed frame on the upper part of the support block, and a bidirectional screw is rotatably connected to the fixed frame on the other side. The bidirectional screw is driven by a lifting transmission motor. A guide sleeve and a transmission sleeve are respectively sleeved on the guide rod and the bidirectional screw, and a connecting rod is fixed inside the guide sleeve and the transmission sleeve. The connecting rod is connected to the upper part of the skimming connecting cylinder.

4. The oil removal and skimming device for wastewater treatment plants according to claim 3, characterized in that: The support block is connected to a corresponding bracket via a rotating shaft, and the rotating shaft is driven by a rotary transmission motor.

5. The oil removal and sludge skimming device for wastewater treatment plants according to claim 3, characterized in that: The running component includes a rotating block at the lower part of the bracket on which the bidirectional lead screw is installed, and a running wheel structure is provided at the lower part of the rotating block. A circular running track is provided on the support plate, and the running wheel structure moves along the running track.

6. The oil removal and skimming device for wastewater treatment plants according to claim 2, characterized in that: The oil removal assembly includes an oil removal connecting cylinder and a support screen plate installed at the lower part of the skimming screen plate. The oil removal assembly and the skimming assembly are raised and lowered synchronously. A connector is provided on the lower periphery of the support screen plate, and the connector is fixed to the inner wall of the oil removal connecting cylinder by fixing bolts passing through the connector. Oil-absorbing cotton is provided on the upper part of the support screen plate, and corresponding adhesive layers are provided on the support screen plate and the oil-absorbing cotton.

7. The oil removal and skimming device for wastewater treatment plants according to claim 6, characterized in that: The oil-absorbing cotton on the support mesh plate is dispersed, and the positions of the oil-absorbing cotton on the support mesh plate of adjacent oil removal components are staggered.

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