Sewage oil removal device and oil removal method based on mechanical interlocking

Abstract

The invention relates to the technical field of sewage treatment, and discloses a sewage oil removal device and an oil removal method based on mechanical interlocking. Through the arrangement of the hydrolytic acidification bin, the contact oxidation bin, the precipitation bin and the disinfection bin, clear water is separated out after sewage is treated, meanwhile, waste gas generated in the sewage treatment process is collected and discharged in a centralized mode through the arrangement of the exhaust pipe, the gas supply pipe and the draught fan above the sewage treatment equipment, and meanwhile through the arrangement of the separation box and the turning-through pipe, the waste gas can be recycled. According to the sewage treatment equipment, the rotary through pipe is rotated, the exhaust pipe is moved to the position over the rotary through pipe and is fixed to the rotary through pipe through bolts, the rotary through pipe is rotated, and the rotary through pipe and the exhaust pipe are fixed through bolts; and cleaning liquid is introduced through the through opening in the other side of the turning through pipe, so that the cleaning liquid cleans solid and gas wastes possibly adhered to the inner part of the pipe wall, and the maintenance and cleaning efficiency of the sewage treatment equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and specifically to an oil removal device for sewage and an oil removal method based on mechanical interlock. Background Art

[0002] Sewage treatment equipment is an industrial equipment that can effectively treat domestic sewage, industrial wastewater, etc. in urban areas, avoiding the direct inflow of sewage and pollutants into water areas, and is of great significance for improving the ecological environment, enhancing the urban grade, and promoting economic development. Submersible sewage treatment equipment is suitable for domestic sewage and similar industrial organic wastewater in residential areas, hospitals and sanatoriums, office buildings, shopping malls, hotels, restaurants, government agencies, schools, military units, aquatic product processing plants, livestock processing plants, dairy processing plants, etc., such as organic sewage treatment in industries such as textile, beer, paper making, leather making, food, and chemical industry. The main purpose is to treat domestic sewage and similar industrial organic wastewater to meet the requirements of reclaimed water quality, so as to realize the resource utilization of the treated wastewater.

[0003] In existing sewage treatment equipment, such as in Chinese Patent Application CN110054367A, by setting a pretreatment tank, an anoxic tank, an aeration tank, and an aerobic tank, the aeration tank and the aerobic tank are separately arranged and connected through a channel below, so that the aeration tank can fully perform aeration operations, and the aerobic tank has sufficient oxygen, improving the sewage treatment efficiency of the device.

[0004] However, there are still the following problems: The sewage treatment process of the sewage treatment equipment does not end all at once, and other wastes will be generated during the treatment process and need to be treated again. Without separating and treating during the sewage treatment process, the treatment quality of the sewage treatment equipment will be low. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an oil removal device for sewage and an oil removal method based on mechanical interlock, which have the advantages of cleaning the wastes generated during sewage treatment to ensure the treatment quality of the sewage treatment equipment, and at the same time can centrally clean the waste discharge pipes, reducing the time required for equipment maintenance, etc., and solves the problem that the sewage treatment process of the sewage treatment equipment does not end all at once, and other wastes will be generated during the treatment process and need to be treated again. Without separating and treating during the sewage treatment process, the treatment quality of the sewage treatment equipment will be low.

[0006] To achieve the above object, the present invention provides the following technical solution: An oil removal device for sewage, comprising a frame body, a sewage treatment mechanism arranged on the frame body, and a solid-liquid separation mechanism arranged on the sewage treatment mechanism. The sewage treatment mechanism includes a hydrolysis acidification tank, a contact oxidation tank, a sedimentation tank, and a disinfection tank. The hydrolysis acidification tank is fixedly installed on the frame body, the contact oxidation tank is fixedly installed on the frame body, the bottom of one end of the contact oxidation tank communicates with the bottom of one end of the hydrolysis acidification tank, the sedimentation tank is fixedly installed on the frame body, the top of one end of the sedimentation tank communicates with the top of the other end of the contact oxidation tank, the disinfection tank is fixedly installed on the frame body, and the top of one end of the disinfection tank communicates with the top of the other end of the sedimentation tank;

[0007] The solid-liquid separation mechanism includes an exhaust pipe, an air supply pipe, a transfer pipe, and a separation box. The exhaust pipe is slidably arranged on the contact oxidation tank. The air supply pipes are respectively arranged on the hydrolysis acidification tank, the contact oxidation tank, the sedimentation tank, and the disinfection tank. One end of each air supply pipe communicates with the hydrolysis acidification tank, the contact oxidation tank, the sedimentation tank, and the disinfection tank respectively. The other ends of the air supply pipes are bolt-fixed to the exhaust pipe and communicate with the exhaust pipe. The transfer pipe is rotatably arranged on the contact oxidation tank. The transfer pipe has a "T" shape and is located directly below the sliding track of the exhaust pipe. The separation box is fixedly installed on the frame body. The bottom end of the separation box communicates with the bottom end of the sedimentation tank. One side top of the separation box is bolt-fixed to and communicates with one side opening of the transfer pipe;

[0008] When using the sewage treatment equipment, the openings of the transfer pipe are located on the horizontal sides and below. When cleaning the sewage treatment equipment, the transfer pipe rotates so that the openings are located on the upper and lower sides and the other side of the transfer pipe, so as to slide the exhaust pipe to directly above the transfer pipe and bolt-fix it to the transfer pipe.

[0009] Preferably, the sewage treatment mechanism further includes a water inlet, which is fixedly installed on the top of the other end of the hydrolysis acidification tank and communicates with the hydrolysis acidification tank. A coarse grid is fixedly installed in the hydrolysis acidification tank, and the coarse grid is adapted to the size of the vertical cross-section of the hydrolysis acidification tank.

[0010] Preferably, an air inlet pipe is fixedly installed on the contact oxidation tank. The air inlet pipe penetrates through the wall surface of the contact oxidation tank and extends to the inner bottom end of the contact oxidation tank. A plurality of spray nozzles are fixedly installed on the bottom end of the air inlet pipe. The spray nozzles are all communicated with the air inlet pipe. A control valve is fixedly installed at the bottom between the contact oxidation tank and the hydrolysis acidification tank. The control valve translates the valve to control the size of the valve port. A partition cavity is fixedly installed at the top between the contact oxidation tank and the hydrolysis acidification tank. The valve of the control valve is placed in the partition cavity, so that the hydrolysis acidification tank and the contact oxidation tank are communicated through the valve port of the control valve.

[0011] Preferably, a diversion wide pipe is fixedly installed at the top of one end of the sedimentation tank. The diversion wide pipe penetrates into the contact oxidation tank, and the bottom end of the diversion wide pipe extends to the inner bottom of the sedimentation tank. A transmission pipe is fixedly installed at the top of one end of the disinfection tank. The transmission pipe penetrates into the sedimentation tank. An outlet is fixedly installed at the top of the other end of the disinfection tank. The outlet is communicated with the disinfection tank. Ventilation openings are respectively fixedly installed at the tops of the hydrolysis acidification tank, the contact oxidation tank, the sedimentation tank, and the disinfection tank. The ventilation openings are respectively communicated with the hydrolysis acidification tank, the contact oxidation tank, the sedimentation tank, and the disinfection tank.

[0012] Preferably, the solid-liquid separation mechanism further includes a limit frame. The limit frame is fixedly installed on the contact oxidation tank. A sliding member is slidably fitted on the limit frame. The sliding member is fixedly connected to the exhaust pipe. A plugging member is fixedly installed on the contact oxidation tank. The plugging member is bolted to the bottom end of the exhaust pipe. One end of the air supply pipe is fixedly installed with the ventilation opening.

[0013] Preferably, a turntable is fixedly installed on the contact oxidation tank. The rotating plate of the turntable is fixedly installed with the rotating through pipe. A cleaning pipe is fixedly installed on the frame body. The cleaning pipe is bolted to the other side opening of the rotating through pipe. A connecting pipe is arranged between the separation box and the rotating through pipe. One end of the connecting pipe is fixedly installed at the top of one side of the separation box. The connecting pipe is communicated with the separation box. The other end of the connecting pipe is bolted to the side opening of the rotating through pipe.

[0014] Preferably, a bottom through pipe is provided between the separation tank and the sedimentation tank. One end of the bottom through pipe communicates with the bottom end of the sedimentation tank, and the other end of the bottom through pipe communicates with the bottom end of the separation tank. The separation tank is of a ring-shaped hollow structure. A guide rail is fixedly installed on the inner ring of the interior of the separation tank. The guide rail penetrates the wall surface of the separation tank, and the connection between the guide rail and the separation tank is sealed, so that the liquid inside the separation tank cannot flow outside the separation tank through the guide rail. A plurality of receiving frames are slidably fitted on the guide rail. The receiving frames are located inside the separation tank. Filter screen frames are rotatably fitted on the receiving frames. Torsion springs are sleeved on the shafts of the filter screen frames. One end of the torsion spring is connected to the filter screen frame, and the other end of the torsion spring is connected to the receiving frame.

[0015] Preferably, a scraper is fixedly installed on the outer ring of the interior of the separation tank. The scraper is adjacent to the connecting pipe. A chain is slidably fitted on the guide rail. The chain is located outside the separation tank. The inner ring of the chain is disposed outside the guide rail. The chain is power-connected to the receiving frame. A motor is fixedly installed on the frame body. A driving roller is fixedly installed on the shaft of the motor. The driving roller meshes with the chain.

[0016] An oil removal method based on mechanical interlock uses the above-mentioned sewage oil removal device.

[0017] Compared with the prior art, the present invention provides a sewage oil removal device and an oil removal method based on mechanical interlock, having the following beneficial effects:

[0018] 1. For this sewage oil removal device, through the settings of the hydrolysis acidification tank, contact oxidation tank, sedimentation tank, and disinfection tank, the sewage is treated to separate the clear water. At the same time, the exhaust pipe, air supply pipe, and fan above the sewage treatment equipment are provided to centrally collect and discharge the waste gas generated during the sewage treatment process. At the same time, by using the settings of the separation tank and the transfer through pipe, the solid sediment generated during the sewage treatment process is separated and discharged, realizing the separation of solid, liquid, and gas, improving the quality of sewage treatment. When maintaining and cleaning the sewage treatment equipment, rotate the transfer through pipe, move the exhaust pipe to the directly above the transfer through pipe and bolt it to the transfer through pipe, and introduce the cleaning liquid through the through port on the other side of the transfer through pipe, so that the cleaning liquid can clean the waste that may adhere to the inner wall of the pipe by solids and gases, improving the maintenance and cleaning efficiency of the sewage treatment equipment and indirectly improving the working efficiency of the sewage treatment equipment.

[0019] 2. For this sewage oil removal device, when the sewage treatment equipment is not maintained and cleaned, the sealing member seals the bottom end of the exhaust pipe, which can ensure the unidirectionality of the exhaust gas discharged by the exhaust pipe and prevent the exhaust gas from discharging in multiple directions.

[0020] 3. The sewage oil removal device rotates by the force generated when the filter screen frame abuts against the scraper. When it continues to move along with the receiving frame, the torsion spring resets after the filter screen frame leaves the scraper, causing the sediment to fall into the connecting pipe, effectively separating the sediment and ensuring the stable operation of the equipment, thereby improving the stability of the sewage treatment equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the sewage treatment equipment of the present invention;

[0022] Figure 2 is a schematic diagram of the structure of the sewage treatment mechanism of the present invention;

[0023] Figure 3 is a schematic diagram of the internal structure distribution of the hydrolysis acidification tank of the present invention;

[0024] Figure 4 is a schematic diagram of the structure distribution at the control valve of the present invention;

[0025] Figure 5 is a schematic diagram of the structure of the solid-liquid separation mechanism of the present invention;

[0026] Figure 6 is a schematic diagram of the structure distribution at the limit frame of the present invention;

[0027] Figure 7 is a schematic diagram of the structure distribution at the rotating through pipe of the present invention;

[0028] Figure 8 is a schematic diagram of the internal structure distribution of the separation tank of the present invention;

[0029] Figure 9 is Figure 8 an enlarged schematic diagram of part A in

[0030] In the figure: 1. Frame body; 2. Sewage treatment mechanism; 21. Hydrolysis acidification tank; 22. Water inlet; 23. Coarse grille; 24. Contact oxidation tank; 25. Air inlet pipe; 26. Nozzle; 27. Control valve; 28. Partition cavity; 29. Sedimentation tank; 210. Diversion wide pipe; 211. Disinfection tank; 212. Transmission pipe; 213. Water outlet; 214. Ventilation port; 3. Solid-liquid separation mechanism; 31. Limit frame; 32. Sliding part; 33. Exhaust pipe; 34. Sealing part; 35. Air supply pipe; 36. Turntable; 37. Rotating through pipe; 38. Cleaning pipe; 39. Separation tank; 310. Connecting pipe; 311. Bottom through pipe; 312. Guide rail; 313. Receiving frame; 314. Filter screen frame; 315. Scraper; 316. Chain; 317. Motor; 318. Driving roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes an oil removal device for sewage and an oil removal method based on mechanical interlocking.

[0033] Embodiment 1

[0034] In a typical implementation manner of the present application, as Figure 1 shown, an oil removal device for sewage includes a frame body 1, a sewage treatment mechanism 2 provided on the frame body 1, and a solid-liquid separation mechanism 3 provided on the sewage treatment mechanism 2. The sewage treatment mechanism 2 includes a hydrolysis acidification tank 21, a contact oxidation tank 24, a sedimentation tank 29, and a disinfection tank 211. The hydrolysis acidification tank 21 is fixedly installed on the frame body 1, the contact oxidation tank 24 is fixedly installed on the frame body 1, the bottom of one end of the contact oxidation tank 24 communicates with the bottom of one end of the hydrolysis acidification tank 21, the sedimentation tank 29 is fixedly installed on the frame body 1, the top of one end of the sedimentation tank 29 communicates with the top of the other end of the contact oxidation tank 24, the disinfection tank 211 is fixedly installed on the frame body 1, and the top of one end of the disinfection tank 211 communicates with the top of the other end of the sedimentation tank 29;

[0035] The solid-liquid separation mechanism 3 includes an exhaust pipe 33, an air supply pipe 35, a transfer pipe 37, and a separation box 39. The exhaust pipe 33 is slidably arranged on the contact oxidation tank 24. The air supply pipes 35 are respectively arranged on the hydrolysis acidification tank 21, the contact oxidation tank 24, the sedimentation tank 29, and the disinfection tank 211. One end of the air supply pipe 35 communicates with the hydrolysis acidification tank 21, the contact oxidation tank 24, the sedimentation tank 29, and the disinfection tank 211 respectively. The other ends of the air supply pipes 35 are fixedly bolted to the exhaust pipe 33 and communicate with the exhaust pipe 33. The transfer pipe 37 is rotatably arranged on the contact oxidation tank 24. The transfer pipe 37 has a "T" shape and is located directly below the sliding track of the exhaust pipe 33. The separation box 39 is fixedly installed on the frame body 1. The bottom end of the separation box 39 communicates with the bottom end of the sedimentation tank 29. One side top of the separation box 39 is fixedly bolted to one side port of the transfer pipe 37 and communicates with one side port of the transfer pipe 37;

[0036] When using the sewage treatment equipment, the ports of the transfer pipe 37 are located on the horizontal sides and below. When cleaning the sewage treatment equipment, the transfer pipe 37 is rotated so that the ports are located on the upper and lower sides and the other side of the transfer pipe 37, so as to slide the exhaust pipe 33 to directly above the transfer pipe 37 and fixedly bolt it to the transfer pipe 37.

[0037] Further, a blower is provided in the air supply pipe 35, and the blowing direction of the blower is towards the exhaust pipe 33.

[0038] When using the present invention:

[0039] First, the sewage is introduced into the hydrolysis acidification tank 21 for hydrolysis acidification, then the sewage in the hydrolysis acidification tank 21 is introduced into the contact oxidation tank 24 for oxidation, then the sewage in the contact oxidation tank 24 is introduced into the sedimentation tank 29 for sedimentation treatment, then the sewage in the sedimentation tank 29 is introduced into the disinfection tank 211 for disinfection treatment, and finally the clear water generated after sewage treatment is discharged from the disinfection tank 211. At the same time, the waste gases generated in the hydrolysis acidification tank 21, the contact oxidation tank 24, the sedimentation tank 29, and the disinfection tank 211 are all drawn into the air supply pipe 35 by the blower, and then centrally sent into the exhaust pipe 33 by the air supply pipe 35 for discharge. At the same time, the sediment generated in the sedimentation tank 29 passes through the bottom connection between the sedimentation tank 29 and the separation box 39, and by using the principle of the "U" - shaped tube, the sediment enters the separation box 39, and the sediment and the liquid are separated by the separation box 39. The sediment is sent to the transfer pipe 37 by the separation box 39, and the sediment is discharged through the bottom port of the transfer pipe 37 to separate the solids in the sewage. When maintaining and cleaning the sewage treatment equipment, the bolt fixation between the exhaust pipe 33 and the air supply pipe 35 is removed, and then the transfer pipe 37 is rotated so that the ports are located on the upper and lower sides and the other side of the transfer pipe 37. The exhaust pipe 33 is slid to be directly above the transfer pipe 37 and bolt - fixed to the transfer pipe 37. The cleaning liquid is introduced through the port on the other side of the transfer pipe 37, so that the cleaning liquid sprays out from the remaining two ports of the transfer pipe 37 to clean the transfer pipe 37 and synchronously clean the exhaust pipe 33;

[0040] Through the settings of the hydrolysis acidification tank 21, the contact oxidation tank 24, the sedimentation tank 29, and the disinfection tank 211, the clear water is separated after sewage treatment. At the same time, the settings of the exhaust pipe 33, the air supply pipe 35, and the blower above the sewage treatment equipment enable the centralized collection and discharge of the waste gases generated during the sewage treatment process. At the same time, by using the settings of the separation box 39 and the transfer pipe 37, the solid sediment generated during the sewage treatment process is separated and discharged, realizing the separation of solid, liquid, and gas, improving the quality of sewage treatment. When maintaining and cleaning the sewage treatment equipment, the transfer pipe 37 is rotated, the exhaust pipe 33 is moved to be directly above the transfer pipe 37 and bolt - fixed to the transfer pipe 37, and the cleaning liquid is introduced through the port on the other side of the transfer pipe 37, so that the cleaning liquid can clean the waste adhered to the inner wall of the pipe by solids and gases, improving the maintenance and cleaning efficiency of the sewage treatment equipment and indirectly improving the working efficiency of the sewage treatment equipment.

[0041] Embodiment 2

[0042] Such as Figures 2 - 4As shown, the difference from the above embodiment is that the sewage treatment mechanism 2 further includes a water inlet 22, which is fixedly installed at the top of the other end of the hydrolysis acidification tank 21. The water inlet 22 communicates with the hydrolysis acidification tank 21. A coarse grid 23 is fixedly installed in the hydrolysis acidification tank 21, and the coarse grid 23 is adapted to the size of the vertical section of the hydrolysis acidification tank 21.

[0043] Furthermore, an air inlet pipe 25 is fixedly installed on the contact oxidation tank 24. The air inlet pipe 25 penetrates through the wall of the contact oxidation tank 24 and extends to the inner bottom end of the contact oxidation tank 24. A plurality of spray nozzles 26 are fixedly installed at the bottom end of the air inlet pipe 25, and the spray nozzles 26 all communicate with the air inlet pipe 25. A control valve 27 is fixedly installed at the bottom between the contact oxidation tank 24 and the hydrolysis acidification tank 21. The control valve 27 has a translational valve to control the size of the valve port. A partition cavity 28 is fixedly installed at the top between the contact oxidation tank 24 and the hydrolysis acidification tank 21, and the valve of the control valve 27 is placed in the partition cavity 28, so that the hydrolysis acidification tank 21 communicates with the contact oxidation tank 24 through the valve port of the control valve 27.

[0044] Among them, sewage enters the hydrolysis acidification tank 21 from the water inlet 22 for hydrolysis acidification treatment. The coarse grid 23 preliminarily filters large solid wastes in the sewage. The valve of the control valve 27 is adjusted to move in the partition cavity 28, so as to change the opening degree of the valve port of the control valve 27, so that the sewage in the hydrolysis acidification tank 21 flows into the contact oxidation tank 24. Gas is introduced through the air inlet pipe 25, and the gas is sprayed into the sewage in the contact oxidation tank 24 through the spray nozzles 26 to perform contact oxidation treatment on the sewage.

[0045] Furthermore, a diversion wide pipe 210 is fixedly installed at the top of one end of the sedimentation tank 29. The diversion wide pipe 210 penetrates into the contact oxidation tank 24, and the bottom end of the diversion wide pipe 210 extends to the inner bottom of the sedimentation tank 29. A transmission pipe 212 is fixedly installed at the top of one end of the disinfection tank 211. The transmission pipe 212 penetrates into the sedimentation tank 29. An outlet 213 is fixedly installed at the top of the other end of the disinfection tank 211, and the outlet 213 communicates with the disinfection tank 211. Ventilation openings 214 are respectively fixedly installed on the tops of the hydrolysis acidification tank 21, the contact oxidation tank 24, the sedimentation tank 29, and the disinfection tank 211, and the ventilation openings 214 respectively communicate with the hydrolysis acidification tank 21, the contact oxidation tank 24, the sedimentation tank 29, and the disinfection tank 211.

[0046] Among them, the sewage treated in the contact oxidation tank 24 flows into the sedimentation tank 29 through the diversion wide pipe 210 for sedimentation treatment. The sewage after sedimentation treatment enters the disinfection tank 211 through the transmission pipe 212 for disinfection treatment, and the treated clear water is discharged from the outlet 213.

[0047] Embodiment 3

[0048] As Figures 5 - 9As shown in the figure, the difference from the above embodiment is that the solid-liquid separation mechanism 3 further includes a limit frame 31, the limit frame 31 is fixedly installed on the contact oxidation tank 24, a sliding member 32 is slidably fitted on the limit frame 31, the sliding member 32 is fixedly connected to the exhaust pipe 33, a sealing member 34 is fixedly installed on the contact oxidation tank 24, the sealing member 34 is bolted to the bottom end of the exhaust pipe 33, and one end of the air supply pipe 35 is fixedly installed with the air vent 214.

[0049] Among them, when the sewage treatment equipment is not maintained and cleaned, the sealing of the bottom end of the exhaust pipe 33 by the sealing member 34 can ensure the unidirectionality of the exhaust of the exhaust pipe 33 and prevent the exhaust gas from discharging in multiple directions.

[0050] Furthermore, a turntable 36 is fixedly installed on the contact oxidation tank 24, a rotating through pipe 37 is fixedly installed on the rotating plate of the turntable 36, a cleaning pipe 38 is fixedly installed on the frame body 1, the cleaning pipe 38 is bolted to the other side opening of the rotating through pipe 37, a connecting pipe 310 is provided between the separation tank 39 and the rotating through pipe 37, one end of the connecting pipe 310 is fixedly installed at the top of one side of the separation tank 39, the connecting pipe 310 communicates with the separation tank 39, and the other end of the connecting pipe 310 is bolted to the other side opening of the rotating through pipe 37.

[0051] Among them, when performing maintenance and cleaning, unbolt the fixing of the rotating through pipe 37 and the cleaning pipe 38, unbolt the fixing of the rotating through pipe 37 and the connecting pipe 310, rotate the turntable 36, after the turntable 36 drives the rotating through pipe 37 to rotate, then bolt the other side opening of the rotating through pipe 37 to the cleaning pipe 38 again, bolt the upper opening of the rotating through pipe 37 to the bottom end of the exhaust pipe 33, input the cleaning liquid through the cleaning pipe 38, and make the cleaning liquid clean the rotating through pipe 37 and the exhaust pipe 33.

[0052] Furthermore, a bottom through pipe 311 is provided between the separation tank 39 and the sedimentation tank 29, one end of the bottom through pipe 311 communicates with the bottom end of the sedimentation tank 29, the other end of the bottom through pipe 311 communicates with the bottom end of the separation tank 39, the separation tank 39 is of a ring-shaped hollow structure, a guide rail 312 is fixedly installed on the inner ring of the inside of the separation tank 39, the guide rail 312 penetrates the wall surface of the separation tank 39, and the connection between the guide rail 312 and the separation tank 39 is sealed, so that the liquid inside the separation tank 39 cannot flow to the outside of the separation tank 39 through the guide rail 312. A plurality of receiving frames 313 are slidably fitted on the guide rail 312, the receiving frames 313 are located inside the separation tank 39, a filter mesh frame 314 is rotatably fitted on each of the receiving frames 313, a torsion spring is sleeved on the shaft of the filter mesh frame 314, one end of the torsion spring is connected to the filter mesh frame 314, and the other end of the torsion spring is connected to the receiving frame 313.

[0053] Furthermore, a scraper 315 is fixedly installed on the outer ring inside the separation box 39. The scraper 315 is adjacent to the connecting pipe 310. A chain 316 is slidably fitted on the guide rail 312. The chain 316 is located outside the separation box 39. The inner ring of the chain 316 is disposed outside the guide rail 312. The chain 316 is power-connected to the receiving frame 313. A motor 317 is fixedly installed on the frame body 1. A driving roller 318 is fixedly installed on the shaft of the motor 317. The driving roller 318 meshes with the chain 316.

[0054] Among them, when the motor 317 is started, the motor 317 drives the driving roller 318 to rotate. The driving roller 318 drives the chain 316 to move on the guide rail 312. The chain 316 drives the receiving frame 313 to move on the guide rail 312. The receiving frame 313 drives the filter screen frame 314 to move, so that the filter screen frame 314 filters the sediment at the bottom of the separation box 39. As the filter screen frame 314 moves, the filter screen frame 314 abuts against the scraper 315. The scraper 315 scrapes the sediment filtered on the filter screen frame 314. The sediment will enter the connecting pipe 310. The filter screen frame 314 rotates due to the force of the abutment, so as to continue to move with the receiving frame 313, and the torsion spring is used to reset after the filter screen frame 314 leaves the scraper 315. The sediment slides into the rotating through pipe 37 in the connecting pipe 310, and the sediment is discharged through the opening below the rotating through pipe 37.

[0055] The overall working principle of the sewage oil removal device:

[0056] First, the sewage is introduced into the hydrolysis acidification tank 21 for hydrolysis acidification, and then the sewage in the hydrolysis acidification tank 21 is introduced into the contact oxidation tank 24 for oxidation. Then, the sewage in the contact oxidation tank 24 is introduced into the sedimentation tank 29 for sedimentation treatment. After that, the sewage in the sedimentation tank 29 is introduced into the disinfection tank 211 for disinfection treatment. Finally, the clear water generated after sewage treatment is discharged from the disinfection tank 211. At the same time, the waste gases generated in the hydrolysis acidification tank 21, the contact oxidation tank 24, the sedimentation tank 29, and the disinfection tank 211 are all sucked into the air supply pipe 35 by the fan, and then centrally sent into the exhaust pipe 33 by the air supply pipe 35 for discharge. At the same time, the sediment generated in the sedimentation tank 29 passes through the bottom connection between the sedimentation tank 29 and the separation box 39. Using the principle of the "U" - shaped tube, the sediment enters the separation box 39, and the sediment and liquid are separated by the separation box 39. The sediment is sent to the transfer pipe 37 by the separation box 39, and the sediment is discharged through the bottom opening of the transfer pipe 37 to separate the solids in the sewage. When maintaining and cleaning the sewage treatment equipment, the bolt fixation between the exhaust pipe 33 and the air supply pipe 35 is removed, and then the transfer pipe 37 is rotated so that the openings are on the upper and lower sides and the other side of the transfer pipe 37. The exhaust pipe 33 is slid to be directly above the transfer pipe 37 and bolt - fixed to the transfer pipe 37. The cleaning liquid is introduced through the opening on the other side of the transfer pipe 37, so that the cleaning liquid sprays out from the remaining two openings of the transfer pipe 37 to clean the transfer pipe 37 and simultaneously clean the exhaust pipe 33;

[0057] Among them, the sewage enters the hydrolysis acidification tank 21 from the water inlet 22 for hydrolysis acidification treatment. The coarse grid 23 preliminarily filters the large - sized solid wastes in the sewage. The valve of the regulating control valve 27 moves in the partition cavity 28 to change the opening degree of the valve port of the control valve 27, so that the sewage in the hydrolysis acidification tank 21 flows into the contact oxidation tank 24. Gas is introduced through the air inlet pipe 25, and the gas is sprayed into the sewage in the contact oxidation tank 24 through the nozzle 26 to conduct contact oxidation treatment on the sewage. After the sewage in the contact oxidation tank 24 is treated, it flows into the sedimentation tank 29 through the diversion wide pipe 210 for sedimentation treatment. The sewage after sedimentation treatment enters the disinfection tank 211 through the transfer pipe 212 for disinfection treatment, and the treated clear water is discharged from the water outlet 213;

[0058] When separating the precipitate solid, start the motor 317. The motor 317 drives the driving roller 318 to rotate. The driving roller 318 drives the chain 316 to move on the guide rail 312. The chain 316 drives the receiving frame 313 to move on the guide rail 312. The receiving frame 313 drives the filter screen frame 314 to move, so that the filter screen frame 314 filters the precipitate at the bottom of the separation tank 39. As the filter screen frame 314 moves, the filter screen frame 314 abuts against the scraper 315. The scraper 315 scrapes the precipitate filtered on the filter screen frame 314. The precipitate will enter the connecting pipe 310. The filter screen frame 314 rotates under the force of the abutment to continue moving with the receiving frame 313, and the torsion spring is used to reset after the filter screen frame 314 leaves the scraper 315. The precipitate slides down in the connecting pipe 310 into the rotating through pipe 37, and is discharged through the opening under the rotating through pipe 37.

[0059] When performing maintenance and cleaning, remove the bolt fixation between the rotating through pipe 37 and the cleaning pipe 38, and remove the bolt fixation between the rotating through pipe 37 and the connecting pipe 310. Rotate the turntable 36. After the turntable 36 drives the rotating through pipe 37 to rotate, bolt-fix the other opening of the rotating through pipe 37 to the cleaning pipe 38 again, and bolt-fix the upper opening of the rotating through pipe 37 to the bottom end of the exhaust pipe 33. Input the cleaning liquid through the cleaning pipe 38 to clean the rotating through pipe 37 and the exhaust pipe 33.

[0060] An oil removal method based on mechanical interlock uses the above sewage oil removal device.

[0061] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage oil removal device, comprising a frame, a sewage treatment mechanism disposed on the frame, and a solid-liquid separation mechanism disposed on the sewage treatment mechanism, characterized in that: The sewage treatment mechanism includes a hydrolysis and acidification bin, a contact oxidation bin, a sedimentation bin, and a disinfection bin. The hydrolysis and acidification bin is fixedly mounted on the frame, the contact oxidation bin is fixedly mounted on the frame, the bottom of one end of the contact oxidation bin is communicated with the bottom of one end of the hydrolysis and acidification bin, the sedimentation bin is fixedly mounted on the frame, the top of one end of the sedimentation bin is communicated with the top of the other end of the contact oxidation bin, the disinfection bin is fixedly mounted on the frame, and the top of one end of the disinfection bin is communicated with the top of the other end of the sedimentation bin; The solid-liquid separation mechanism comprises an exhaust pipe, an air supply pipe, a transfer pipe, and a separation box. The exhaust pipe is slidably arranged on the contact oxidation bin, and the air supply pipe is respectively arranged on the hydrolysis acidification bin, the contact oxidation bin, the sedimentation bin, and the disinfection bin. One end of the air supply pipe is respectively communicated with the hydrolysis acidification bin, the contact oxidation bin, the sedimentation bin, and the disinfection bin, and the other end of the air supply pipe is bolted to the exhaust pipe, and the other end of the air supply pipe is communicated with the exhaust pipe. The transfer pipe is rotatably arranged on the contact oxidation bin, and the transfer pipe is a "T"-shaped structure. The transfer pipe is located directly below the sliding track of the exhaust pipe. The separation box is fixedly installed on the frame, and the bottom end of the separation box is communicated with the bottom end of the sedimentation bin, and the top of one side of the separation box is bolted to the side opening of the transfer pipe, and the top of one side of the separation box is communicated with the side opening of the transfer pipe; When the sewage treatment equipment is in use, the opening of the transfer pipe is located on both sides and the bottom horizontally. When the sewage treatment equipment is cleaned, the transfer pipe is rotated so that the opening is located on the upper and lower sides and the other side of the transfer pipe, so that the exhaust pipe can be slid to the top of the transfer pipe and fixed with the transfer pipe bolts.

2. A sewage oil removal device according to claim 1, characterized in that: The sewage treatment mechanism also includes a water inlet, which is fixedly installed on the top of the other end of the hydrolysis acidification bin and communicates with the hydrolysis acidification bin. A coarse grid is fixedly installed in the hydrolysis acidification bin and is adapted to the size of the vertical section of the hydrolysis acidification bin.

3. A sewage oil removal device according to claim 2, characterized in that: An air inlet pipe is fixedly installed on the contact oxidation bin, and the air inlet pipe passes through the wall of the contact oxidation bin and extends to the inner bottom end of the contact oxidation bin. A plurality of nozzles are fixedly installed on the bottom end of the air inlet pipe, and the nozzles are all communicated with the air inlet pipe. A control valve is fixedly installed on the bottom between the contact oxidation bin and the hydrolysis acidification bin, and the control valve translates the valve to control the size of the valve opening. A partition cavity is fixedly installed on the top between the contact oxidation bin and the hydrolysis acidification bin, and the valve of the control valve is placed in the partition cavity, so that the hydrolysis acidification bin and the contact oxidation bin are communicated through the valve opening of the control valve.

4. A sewage oil removal device according to claim 3, characterized in that: A wide guide tube is fixedly installed on the top of one end of the sedimentation bin, and the wide guide tube passes through the contact oxidation bin. The bottom end of the wide guide tube extends to the inner bottom of the sedimentation bin. A transmission tube is fixedly installed on the top of one end of the disinfection bin, and the transmission tube passes through the sedimentation bin. A water outlet is fixedly installed on the top of the other end of the disinfection bin, and the water outlet is communicated with the disinfection bin. Vents are fixedly installed on the tops of the hydrolysis acidification bin, the contact oxidation bin, the sedimentation bin, and the disinfection bin, respectively, and the vents are communicated with the hydrolysis acidification bin, the contact oxidation bin, the sedimentation bin, and the disinfection bin, respectively.

5. A sewage oil removal device according to claim 4, characterized in that: The solid-liquid separation mechanism also includes a limit frame, which is fixedly installed on the contact oxidation bin. A sliding piece is slidably matched on the limit frame, and the sliding piece is fixedly connected to the exhaust pipe. A sealing piece is fixedly installed on the contact oxidation bin, and the sealing piece is bolted to the bottom end of the exhaust pipe. One end of the air supply pipe is fixedly installed on the vent.

6. A sewage oil removal device according to claim 5, characterized in that: A turntable is fixedly installed on the contact oxidation bin, the turntable is fixedly installed on the turn plate of the turntable, a cleaning pipe is fixedly installed on the frame, the cleaning pipe is fixed to the other side of the turntable with bolts, a connecting pipe is arranged between the separation box and the turntable, one end of the connecting pipe is fixedly installed on the top of one side of the separation box, the connecting pipe is communicated with the separation box, and the other end of the connecting pipe is fixed to the one side of the turntable with bolts.

7. A sewage oil removal device according to claim 6, characterized in that: A bottom through pipe is arranged between the separation box and the sedimentation bin, one end of the bottom through pipe is communicated with the bottom end of the sedimentation bin, and the other end of the bottom through pipe is communicated with the bottom end of the separation box. The separation box is an annular hollow structure, and a guide rail is fixedly installed on the inner inner ring of the separation box, and the guide rail passes through the wall of the separation box.

8. The sewage oil removal device according to claim 7, characterized in that: The connection between the guide rail and the separation box is sealed, so that the liquid inside the separation box cannot flow to the outside of the separation box through the guide rail. A plurality of receiving frames are slidably fitted on the guide rail, and the receiving frames are located inside the separation box. The receiving frames are rotatably fitted with filter racks, and the axes of the filter racks are sleeved with torsion springs, one end of the torsion spring is connected to the filter rack, and the other end of the torsion spring is connected to the receiving frame.

9. A sewage oil removal device according to claim 8, characterized in that: A scraper is fixedly mounted on the inner outer ring of the separation box, the scraper is adjacent to the connecting pipe, a chain is slidably fitted on the guide rail, the chain is located outside the separation box, the inner ring of the chain is disposed outside the guide rail, the chain is dynamically connected to the supporting frame, a motor is fixedly mounted on the frame, a drive roller is fixedly mounted on the shaft of the motor, and the drive roller is meshed with the chain.

10. A degreasing method based on mechanical interlocking, characterized in that: The wastewater oil removal device according to any one of claims 1 to 9 is used.

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