Oil suction and scum suction device of sewage station

Abstract

The utility model discloses an oil suction and scum suction device of a sewage station, which comprises a vacuum pump and a storage tank which are arranged on a flat car, a vacuum suction port and a scum inlet are arranged at the top of the storage tank, a pressure sensor is further arranged on the storage tank, and the vacuum pump is connected with the vacuum suction port through a vacuum pipeline. The slag inlet is connected with a suspension sucker through a connecting hose; a vacuum pneumatic valve is arranged on the vacuum pipeline, and a slag inlet pneumatic valve is arranged on the connecting hose; the suspension suction cup comprises a floating disc, and a plurality of buoyancy blocks are arranged on the outer edge of the circumference of the floating disc. The storage tank is vacuumized through the vacuum pump, after negative pressure is generated in the storage tank, floating oil and scum on the sedimentation tank are adsorbed and cleaned through the connecting hose and the suspension suction cup, the floating oil and scum cleaning device has the advantages that the floating oil and scum cleaning effect is good, and the vacuum pump is prevented from being blocked and damaged; the structure is simple and compact, the operation is convenient, the movement is convenient, and the working intensity of operators can be obviously reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an oil and scum suction device for a sewage station. Background Art

[0002] In sewage treatment plants that treat wastewater from meat slaughtering and cooked food processing, primary sedimentation tanks or grease traps are generally set up in the physical treatment units to reduce the load on the subsequent biochemical treatment units.

[0003] For the grease trap, it uses the density difference between oil and water to separate the upper and lower parts by staying for a certain period of time. The oil floats on the water surface, and the water enters the subsequent treatment unit from the flow hole at the bottom of the tank body. The floating oil remains in the grease trap. When the floating oil reaches a certain amount, it needs to be cleaned manually.

[0004] The primary sedimentation tank is usually set in front of the regulating tank. Flocculants and coagulants are added to the sewage to flocculate the suspended matter and then precipitate into the primary sedimentation tank. Since some suspended matter in the sewage has a low density, it will float on the surface of the primary sedimentation tank to form scum after flocculation. A small amount of scum can be scraped to the scum tank by the scraping equipment installed on the primary sedimentation tank. However, if the water supply is cut off or the equipment fails, the scum is not scraped off in time and will accumulate on the water surface. When the accumulation reaches a certain thickness, the scraping equipment of the primary sedimentation tank will not be able to operate, and the scum needs to be cleaned manually.

[0005] The existing cleaning of floating oil and scum is mostly done by directly cleaning the floating oil and scum on the sewage surface through a negative pressure pump. For example, patent publication number CN117504428A discloses a suspended matter filtering device for wetland restoration. However, there are problems such as the negative pressure pump being easily blocked and damaged, the cleaning effect of floating oil and scum being poor, the structure being complex, and the inconvenience of movement. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the existing defects and provide an oil and slag suction device for a sewage station to avoid blockage and damage of a vacuum pump, and to achieve a good cleaning effect of floating oil and slag; the structure is simple and compact, the operation is convenient, and the movement is convenient, which can significantly reduce the work intensity of the operator and can effectively solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil and slag suction device for a sewage station, comprising a vacuum pump and a storage tank provided on a flatbed truck, a vacuum suction port and a slag inlet provided on the top of the storage tank, and a pressure sensor provided on the storage tank, the vacuum pump is connected to the vacuum suction port through a vacuum pipe, and the slag inlet is connected to a suspended suction cup through a connecting hose; a vacuum pneumatic valve is provided on the vacuum pipe, and a slag inlet pneumatic valve is provided on the connecting hose; the suspended suction cup comprises a floating plate, and a plurality of buoyancy blocks are provided on the circumferential outer edge of the floating plate.

[0008] Furthermore, a liquid discharge pipe and a slag discharge port are provided at the lower end of the side wall of the storage tank, a switch valve is provided on the liquid discharge pipe, a slag discharge door is provided at the slag discharge port, and an observation window is also provided on the side wall of the storage tank.

[0009] Furthermore, a trumpet suction port protruding upward is provided at the center of the floating plate, a connecting pipe port is provided at the center of the top of the trumpet suction port, and a connecting hose is connected to the connecting pipe port.

[0010] Furthermore, the buoyancy blocks are arranged at equal intervals along the bottom of the outer edge of the circumference of the floating plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the oil and scum suction device of the sewage station evacuates the storage tank through a vacuum pump, and after negative pressure is generated inside the storage tank, the floating oil and scum on the sedimentation tank are adsorbed and cleaned through a connecting hose and a suspended suction cup, thereby avoiding blockage and damage to the vacuum pump; buoyancy blocks are arranged at equal intervals at the bottom of the outer edge of the circumference of the floating plate, and an upwardly protruding trumpet suction port is arranged at the center of the floating plate, so that the suspended suction cup floats stably on the liquid surface, and the cleaning effect of the floating oil and scum is good; the structure is simple and compact, the operation is convenient, and the movement is convenient, which can significantly reduce the workload of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the storage tank structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the suspension suction cup of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the utility model when in use.

[0016] In the figure: 1. Flatbed car; 2. Vacuum pump; 3. Storage tank; 31. Vacuum suction port; 32. Slag inlet; 33. Drain pipe; 34. Slag discharge door; 35. Observation window; 4. Vacuum pipeline; 5. Connecting hose; 6. Suspended suction cup; 61. Floating plate; 62. Horn suction port; 63. Connecting pipe port; 64. Buoyancy block; 7. Vacuum pneumatic valve; 8. Slag inlet pneumatic valve; 9. Pressure sensor; 200. Sedimentation tank. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0018] See also Figure 1-4 The utility model provides a technical solution: an oil and slag suction device for a sewage station, comprising a vacuum pump 2 and a storage tank 3 provided on a flatbed car 1; a vacuum suction port 31 and a slag inlet 32 ​​are provided on the top of the storage tank 3, and a pressure sensor 9 is also provided on the storage tank 3; a liquid discharge pipe 33 and a slag discharge port are provided at the lower end of the side wall of the storage tank 3, a switch valve is provided on the liquid discharge pipe 33, a slag discharge door 34 is provided at the slag discharge port, and an observation window 35 is also provided on the side wall of the storage tank 3; the vacuum pump 2 is provided with a vacuum pump ... provided on the side wall of the storage tank 3; the vacuum pump 2 is provided with a vacuum pump 31 and a slag inlet 32 ​​are provided on the top of the storage tank 3, and a pressure sensor 9 is also provided on the storage tank 3; a liquid discharge pipe 33 and a slag discharge port The empty pipe 4 is connected to the vacuum suction port 31, and the slag inlet 32 ​​is connected to the suspension suction cup 6 through the connecting hose 5. The vacuum pipe 4 is provided with a vacuum pneumatic valve 7, and the connecting hose 5 is provided with a slag inlet pneumatic valve 8; the suspension suction cup 6 includes a floating plate 61, and a plurality of buoyancy blocks 64 are evenly spaced at the bottom of the outer edge of the circumference of the floating plate 61; an upwardly protruding trumpet suction port 62 is provided at the center of the floating plate 61, and a connecting pipe port 63 is provided at the center of the top of the trumpet suction port 62, and the connecting hose 5 is connected to the connecting pipe port 63.

[0019] When in use: the oil suction and floating device is placed on the sedimentation tank 200, and is moved to a suitable position by the flatbed car 1, and the suspension suction cup 6 is thrown into the sedimentation tank 200, and the floating plate 61 floats on the liquid surface of the sedimentation tank 200 through the buoyancy block 64; the slag inlet pneumatic valve 8 is closed, and the vacuum pneumatic valve 7 is opened. After the vacuum pump 2 is powered on, the storage tank 3 is evacuated through the vacuum pipe 4. When a certain vacuum degree is reached in the storage tank 3, the pressure sensor 9 sends a signal, the vacuum pump 2 stops, the vacuum pneumatic valve 7 is closed, and the slag inlet pneumatic valve 8 is then opened. Under the action of the internal and external pressure difference, the floating oil or slag is sucked into the storage tank 3 through the suspension suction cup 6 and the connecting hose 5; after the floating oil or slag is sucked into the storage tank 3, the pressure in the storage tank 3 will gradually rise, and when the pressure in the storage tank 3 rises to normal air pressure, the slag inlet pneumatic valve 8 is closed. The vacuum pneumatic valve is opened 7, and the vacuum pump 2 is powered on to evacuate the storage tank 3 again, and the next round of oil and scum suction operation is carried out; this cycle is repeated for many times until the floating oil and scum in the sedimentation tank 200 are completely sucked out. The floating oil in the storage tank 3 is discharged through the drain pipe 33, and the scum in the storage tank 3 is discharged through the slag discharge port by opening the slag discharge door 34.

[0020] The oil and scum suction device of the sewage station disclosed in the present embodiment evacuates the storage tank 3 through the vacuum pump 2. After the negative pressure is generated inside the storage tank 3, the floating oil and scum on the sedimentation tank 200 are adsorbed and cleaned through the connecting hose 5 and the suspension suction cup 6, so as to avoid the blockage and damage of the vacuum pump 2; buoyancy blocks 64 are arranged at equal intervals at the bottom of the outer edge of the circumference of the floating plate 61, and a trumpet suction port 62 protruding upward is arranged at the center of the floating plate 61, so that the suspension suction cup 6 floats stably on the liquid surface, and the cleaning effect of the floating oil and scum is good; the structure is simple and compact, the operation is convenient, and the movement is convenient, which can significantly reduce the work intensity of the operator.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil and scum suction device for a sewage station, comprising a vacuum pump and a storage tank provided on a flatbed vehicle, characterized in that: A vacuum suction port and a slag inlet are provided on the top of the storage tank, and a pressure sensor is also provided on the storage tank. The vacuum pump is connected to the vacuum suction port through a vacuum pipe, and the slag inlet is connected to a suspended suction cup through a connecting hose; a vacuum pneumatic valve is provided on the vacuum pipe, and a slag inlet pneumatic valve is provided on the connecting hose; the suspended suction cup includes a floating plate, and a plurality of buoyancy blocks are provided on the circumferential outer edge of the floating plate.

2. The oil and scum suction device of a sewage station according to claim 1, characterized in that: A liquid discharge pipe and a slag discharge port are arranged at the lower end of the side wall of the storage tank. A switch valve is arranged on the liquid discharge pipe, a slag discharge door is arranged at the slag discharge port, and an observation window is also arranged on the side wall of the storage tank.

3. The oil and scum suction device for a sewage station according to claim 1, characterized in that: A trumpet suction port protruding upward is arranged at the center of the floating plate, a connecting pipe port is arranged at the center of the top of the trumpet suction port, and a connecting hose is connected to the connecting pipe port.

4. The oil and scum suction device for a sewage station according to claim 1, characterized in that: The buoyancy blocks are arranged at equal intervals along the bottom of the outer edge of the circumference of the floating plate.

Images