An oily waste water separation device

Abstract

The present invention belongs to the technical field of waste oil recovery and treatment, and particularly relates to a waste oil-water separation device, which comprises a separation tank. The separation tank is provided with an oil inlet pipe, a heater is arranged at the bottom of the separation tank, a steam outlet is provided on the separation tank, a temperature sensor is arranged inside the separation tank, an oil outlet pipe is provided at the bottom of the separation tank, a filter tank is installed at the upper end of the separation pipe, a waste oil inlet is provided at the upper end of the filter tank, a first ring is arranged on the filter tank, a filter screen is installed inside the first ring, an oil outlet is provided at the bottom of the filter tank, and the upper end of the oil inlet pipe is communicated with the oil outlet. By arranging the filter screen to filter the solids in the waste oil, the solids in the waste oil are removed, and the quality of waste oil treatment is improved. At the same time, the filter screen is driven to turn over by a linkage mechanism, which is convenient for cleaning the filter screen and avoids blockage caused by excessive solids and oil scale remaining on the surface of the filter screen. The temperature is controlled by a controller so that the temperature is above the boiling point of water and below the boiling point of oil, reducing the evaporation of oil.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste oil recovery and treatment, and particularly relates to a waste oil-water separation device. Background Art

[0002] Waste oil refers to the oil that is purified from crude oil or synthesized and is contaminated by physical or chemical impurities after use. Simply put, waste oil, as its name implies, is the oil that originates from petroleum or synthetic oil and has been used. A large amount of waste oil is also included in domestic waste, such as kitchen waste oil and gutter oil. The direct discharge of waste oil will cause environmental pollution. Therefore, waste oil needs to be recycled and reprocessed. Since the most abundant component in waste oil is water, it is particularly important to separate the water in waste oil. There are many types of current oil-water separation devices, but there are deficiencies. When performing oil-water separation, due to the incomplete separation of solids in waste oil, the solid content in the final product is relatively high and the quality is not good. Summary of the Invention

[0003] The purpose of the present invention is to provide a waste oil-water separation device. By setting a filter screen to filter the solids in waste oil, the solids in waste oil are removed, improving the quality of waste oil treatment. At the same time, the filter screen is driven to flip by a linkage mechanism, facilitating the cleaning of the filter screen and avoiding blockage caused by excessive residues of solids and oil scale on the surface of the filter screen. The temperature is controlled by a controller so that the temperature is above the boiling point of water and below the boiling point of oil, reducing the evaporation of oil.

[0004] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows:

[0005] A waste oil-water separation device includes a separation tank. An oil inlet pipe is provided at the top of the separation tank. A heater is provided at the bottom of the separation tank. A steam outlet is provided on the upper side of the separation tank. A temperature sensor is provided inside the separation tank. An oil outlet pipe is provided at the bottom of the separation tank. A filter tank is installed at the upper end of the separation tank. A waste oil inlet is provided at the upper end of the filter tank. A first ring is rotatably assembled inside the filter tank through a rotating shaft. A filter screen is installed inside the first ring. An oil outlet is provided at the bottom of the filter tank. The upper end of the oil inlet pipe is communicated with the oil outlet. A waste liquid outlet is provided on one side of the filter tank wall near the oil outlet. A controller is installed on one side of the filter tank. The heater and the temperature sensor are both electrically connected to the controller;

[0006] A sector-shaped groove is provided inside the bottom wall of the filter tank. A sector-shaped plate is rotatably assembled in the sector-shaped groove. The sector-shaped plate is provided with a rotating assembly. The sector-shaped plate is provided with a first through groove that matches the size of the oil outlet. An arc-shaped groove communicating with the sector-shaped groove is provided on the side wall of the filter tank. The end of the sector-shaped plate is connected with a sealing plate located in the arc-shaped groove. A second through groove is provided on the side of the sealing plate away from the waste liquid outlet, and the size of the second through groove matches that of the waste liquid outlet.

[0007] A second ring is rotatably installed outside the filter tank. The rotating shaft penetrates through the filter tank and is connected with a gear. The second ring is provided with a rack meshing with the gear. The arc-shaped groove is provided with a movement groove communicating with the outside. The lower end of the second ring is connected with a connecting rod, and the other end of the connecting rod penetrates through the movement groove and is connected with the sealing plate.

[0008] The rotating assembly includes a first helical gear rotatably assembled at the bottom of the filter tank. The first helical gear is connected with the sector-shaped plate through a transmission rod. A protective shell is installed at the bottom of the filter tank outside the first helical gear. A second helical gear meshing with the first helical gear is rotatably assembled on the side wall of the protective shell. A first motor is installed at the bottom of the filter tank, and the output shaft of the first motor penetrates through the protective shell and is in transmission connection with the second helical gear.

[0009] A rotating block is rotatably assembled inside the separation tank. The rotating block is connected with a plurality of uniformly distributed stirring rods. A second motor is installed on the side wall of the separation tank, and the output shaft of the second motor penetrates through the separation tank and is connected with the rotating block.

[0010] A flushing mechanism is provided inside the filter tank. The flushing mechanism includes a water storage tank installed at the upper end of the filter tank. A water outlet is provided at the bottom of the water storage tank. A spray pipe is installed at the upper end inside the filter tank. The spray pipe is connected with the water outlet through a pipeline. A pressure valve is provided inside the water outlet. The water storage tank is provided with a pressurizing assembly. A water inlet pipe is provided at the upper end of the water storage tank, and an electric control valve is provided on the water inlet pipe.

[0011] The pressurizing assembly includes a box body installed on one side of the filter tank. A piston plate is hermetically and slidably connected inside the box body. A sliding rod is connected to the lower end of the piston plate. The sliding rod slidably penetrates through the box body and is connected with a push plate. The push plate is provided with a pushing member. A spring is provided between the upper side of the piston plate and the box body. An air inlet is provided on the upper side of the box body, and a one-way air inlet valve is provided inside the air inlet. An air outlet is provided at the upper end of the box body, and a one-way air outlet valve is provided inside the air outlet. The air outlet is connected with an air pipe, and the other end of the air pipe is connected with the upper side of the water storage tank.

[0012] The driving member includes a first transmission wheel fixed on the output shaft of the second motor. A vertical plate is connected to the upper side of the separation tank. A second transmission wheel is rotatably assembled on the vertical plate. The first transmission wheel and the second transmission wheel are connected by a transmission belt. A cam is fixed to the second transmission wheel, and the cam abuts against the push plate.

[0013] A slot is provided at the upper end of the filtration tank. A rotating rod is rotatably provided in the slot. A swinging rod is fixed to the rotating rod. The lower end of the swinging rod extends into the filtration tank and is connected to a knocking block. The other end of the swinging rod extends out of the filtration tank and is connected to a pulling rope. A fixed pulley is installed at the lower end of the box body. A through hole is also provided at the lower end of the box body. The pulling rope bypasses the fixed pulley and passes through the through hole to be connected to the lower side of the piston plate.

[0014] A drying assembly is provided in the filtration tank. The drying assembly includes an air pump installed at the upper end of the filtration tank. An air duct is provided on the side wall of the separation tank. The lower end of the air duct communicates with the outside. The upper end of the air duct is connected to an air pipe. The air pipe is connected to the intake end of the air pump. An air outlet pipe is installed on the upper inner wall of the filtration tank. The outlet end of the air pump is connected to the air outlet pipe.

[0015] In the present invention, a filter screen is provided to filter the solid substances in the waste oil, removing the solid substances in the waste oil and improving the quality of waste oil treatment. At the same time, the filter screen is driven to flip through the linkage mechanism, facilitating the cleaning of the filter screen and avoiding blockage caused by excessive solid substances and oil scale remaining on the surface of the filter screen. The temperature is controlled by the controller so that the temperature is above the boiling point of water and below the boiling point of oil, reducing the evaporation of oil. Description of the Drawings

[0016] The present invention can be further illustrated by the non-limiting embodiments given in the drawings.

[0017] Figure 1 is a schematic structural diagram of an embodiment of a waste oil-water separation device of the present invention Figure 1 ;

[0018] Figure 2 is a schematic structural diagram of an embodiment of a waste oil-water separation device of the present invention Figure 2 ;

[0019] Figure 3 is Figure 2 an enlarged schematic diagram of the structure at A in

[0020] Figure 4 is a schematic sectional structural diagram of an embodiment of a waste oil-water separation device of the present invention Figure 1 ;

[0021] Figure 5 is Figure 4 an enlarged schematic diagram of the structure at B in

[0022] Figure 6 is Figure 4 An enlarged schematic view of the structure at position C in the middle;

[0023] Figure 7 is a schematic top-sectional view of an embodiment of an oily waste water separation device according to the present invention;

[0024] Figure 8 is a schematic view of the sector plate and the sealing plate according to the present invention;

[0025] Figure 9 is a schematic view of the structure of an embodiment of an oily waste water separation device according to the present invention Figure 2 .

[0026] The description of the main component symbols is as follows:

[0027] Separation tank 1, oil inlet pipe 11, heater 12, steam outlet 13, temperature sensor 14, oil outlet pipe 15, filtration tank 2, waste oil inlet 201, first ring 21, filter net 211, oil outlet 22, waste liquid outlet 23, sector groove 3, sector plate 31, first helical tooth 311, protective shell 312, second helical tooth 313, first motor 314, first through groove 32, arc groove 33, sealing plate 34, second through groove 35, second ring 4, gear 41, rack 42, movement groove 43, connecting rod 44, stirring rod 5, second motor 51, water storage tank 6, water spray pipe 61, water inlet pipe 62, box body 63, piston plate 64, slide bar 65, push plate 66, spring 67, air inlet 68, air outlet 69, air duct 691, first transmission wheel 7, vertical plate 71, second transmission wheel 72, transmission belt 73, cam 74, slotted opening 8, rotating rod 81, swinging rod 82, knocking block 83, pull rope 84, fixed pulley 85, air pump 9, air duct 91, air pipe 92, air outlet pipe 93. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below with reference to the drawings and embodiments.

[0029] As Figures 1 - 9As shown in the figure, an oil-water separation device for waste oil according to the present invention includes a separation tank 1. An oil inlet pipe 11 is provided at the top of the separation tank 1. A heater 12 is provided at the bottom of the separation tank 1. A steam outlet 13 is provided on the upper side of the separation tank 1. A temperature sensor 14 is provided inside the separation tank 1. An oil outlet pipe 15 is provided at the bottom of the separation tank 1. A filter tank 2 is installed at the upper end of the separation tank 1. A waste oil inlet 201 is provided at the upper end of the filter tank 2. A first ring 21 is rotatably assembled inside the filter tank 2 through a rotating shaft. A filter screen 211 is installed inside the first ring 21. An oil outlet 22 is provided at the bottom of the filter tank 2. The upper end of the oil inlet pipe 11 is communicated with the oil outlet 22. A waste liquid outlet 23 is provided on one side of the filter tank 2 close to the oil outlet 22. A controller is installed on one side of the filter tank 2. Both the heater 12 and the temperature sensor 14 are electrically connected to the controller;

[0030] A sector-shaped groove 3 is provided inside the bottom wall of the filter tank 2. A sector-shaped plate 31 is rotatably assembled in the sector-shaped groove 3. The sector-shaped plate 31 is provided with a rotating assembly. The sector-shaped plate 31 is provided with a first through groove 32 that matches the size of the oil outlet 22. An arc-shaped groove 33 communicated with the sector-shaped groove 3 is provided on the side wall of the filter tank 2. A sealing plate 34 located in the arc-shaped groove 33 is connected to the end of the sector-shaped plate 31. A second through groove 35 is provided on the side of the sealing plate 34 away from the waste liquid outlet 23. The second through groove 35 matches the size of the waste liquid outlet 23;

[0031] A second ring 4 is rotatably installed outside the filter tank 2. The rotating shaft penetrates through the filter tank 2 and is connected with a gear 41. The second ring 4 is provided with a rack 42 meshing with the gear 41. The arc-shaped groove 33 is provided with a movement groove 43 communicated with the outside. A connecting rod 44 is connected to the lower end of the second ring 4. The other end of the connecting rod 44 penetrates through the movement groove 43 and is connected with the sealing plate 34.

[0032] In the initial state, the first ring 21 is in a horizontal state, that is, the filter screen 211 is in a horizontal state. The first through groove 32 is aligned with the oil outlet 22, that is, the filter tank 2 and the separation tank 1 are communicated through the oil inlet pipe 11. The second through groove 35 and the waste liquid outlet 23 are staggered from each other, and the sealing plate 34 blocks the waste liquid outlet 23;

[0033] During use, the waste oil is transported to the filtering tank 2 through the waste oil inlet 201. The waste oil will pass through the filter screen 211. The filter screen 211 intercepts the solids in the waste oil, removing the solids in the waste oil and making the waste oil relatively pure. The waste oil filtered by the filter screen 211 drops to the bottom of the filtering tank 2 and then enters the separation tank 1 through the oil inlet pipe 11. When the waste oil in the separation tank 1 reaches a certain amount, no more waste oil is added to the filtering tank 2. At the same time, after all the waste oil in the filtering tank 2 has completely flowed into the separation tank 1, the sector plate 31 will be driven to rotate by the rotating assembly. The sector plate 31 rotates in the sector groove 3 and can drive the sealing plate 34 to rotate synchronously in the arc-shaped groove 33, so that the first through groove 32 is staggered from the oil outlet 22. At the same time, the second through groove 35 will be aligned with the waste liquid outlet 23. In this way, the sector plate 31 blocks the oil inlet pipe 11, so that the filtering tank 2 and the separation tank 1 are no longer connected, and the waste liquid outlet 23 will be connected to the outside;

[0034] The rotation of the sealing plate 34 will drive the second ring 4 to rotate through the connecting rod 44. Since the rack 42 of the second ring 4 meshes with the gear 41, when the second ring 4 drives the rack 42 to rotate, it can drive the gear 41 to rotate. Thus, the gear 41 drives the first ring 21 to rotate through the rotating shaft, so that the filter screen 211 is inclined in the filtering tank 2, as Figure 9 shown;

[0035] In this way, the controller can be used to control the heater 12 to work, heating up the waste oil. The water in the waste oil is heated to become water vapor and discharged through the steam outlet 13, realizing the separation of oil and water. The temperature sensor 14 can monitor the temperature inside the waste oil and transmit the temperature signal to the controller. The controller can control the heater 12 to control the temperature inside the waste oil, making the temperature above the boiling point of water and below the boiling point of oil, reducing the evaporation of oil and avoiding the loss of oil;

[0036] And during the oil-water separation process, the staff can clean the filter screen 211, that is, use an external water pipe to flush water into the filtering tank 2 to wash the surface of the filter screen 211. At this time, the filter screen 211 is in an inclined state, and the solids on the surface of the filter screen 211 will be washed off to the bottom of the filtering tank 2 and discharged from the filtering tank 2 through the waste liquid outlet 23 along with the water flow, facilitating the cleaning of the filter screen 211 and avoiding blockage caused by excessive solids and oil scale remaining on the surface of the filter screen 211. At the same time, the inside of the filtering tank 2 can also be washed to avoid excessive oil scale inside the filtering tank 2;

[0037] After the oil-water separation is completed, it is discharged through the oil outlet pipe 15 at the bottom of the separation tank 1. At the same time, the sector plate 31 is driven to rotate in the reverse direction by the rotating assembly to reset, so that the device returns to the initial state;

[0038] The present invention filters the solids in the waste oil by setting a filter screen, removes the solids in the waste oil, improves the quality of waste oil treatment, and at the same time drives the filter screen to flip through a linkage mechanism, which facilitates the cleaning of the filter screen and avoids blockage caused by excessive solids and oil scale remaining on the surface of the filter screen. The temperature is controlled by a controller so that the temperature is above the boiling point of water and below the boiling point of oil, reducing the evaporation of oil.

[0039] The rotating assembly includes a first helical gear 311 rotatably assembled at the bottom of the filter tank 2. The first helical gear 311 is connected to a sector plate 31 through a transmission rod. A protective shell 312 is installed at the bottom of the filter tank 2 on the outside of the first helical gear 311. A second helical gear 313 meshing with the first helical gear 311 is rotatably assembled on the side wall of the protective shell 312. A first motor 314 is installed at the bottom of the filter tank 2. The output shaft of the first motor 314 penetrates through the protective shell 312 and is in transmission connection with the second helical gear 313.

[0040] When it is necessary to rotate the sector plate 31, only the first motor 314 needs to be started. The first motor 314 will drive the second helical gear 313 rotatably assembled in the protective shell 312 to rotate. Since the first helical gear 311 and the second helical gear 313 are meshed and matched, when the second helical gear 313 rotates, it can drive the first helical gear 311 to rotate. Thus, the first helical gear 311 drives the sector plate 31 to rotate, realizing the on-off of the oil outlet 22 and the waste liquid outlet 23, and can drive the filter screen 211 to flip. The first motor 314 is electrically connected to the controller, facilitating the control of the operation of the first motor 314.

[0041] A rotating block is rotatably assembled inside the separation tank 1. The rotating block is connected with a plurality of stirring rods 5 evenly distributed. A second motor 51 is installed on the side wall of the separation tank 1. The output shaft of the second motor 51 penetrates through the separation tank 1 and is connected with the rotating block.

[0042] In this way, when performing oil-water separation, the second motor 51 can be started to drive the rotating block to rotate, thereby driving a plurality of stirring rods 5 to stir in the waste oil, making the water in the waste oil heated more evenly and improving the efficiency of oil-water separation. The structure is simple. The second motor 51 is electrically connected to the controller, facilitating the control of the operation of the second motor 51.

[0043] A flushing mechanism is provided inside the filter tank 2. The flushing mechanism includes a water storage tank 6 installed at the upper end of the filter tank 2. The bottom of the water storage tank 6 is provided with a water outlet. A spray pipe 61 is installed at the upper end inside the filter tank 2. The spray pipe 61 is connected to the water outlet through a pipeline. A pressure valve is provided in the water outlet. The water storage tank 6 is provided with a pressurizing assembly. A water inlet pipe 62 is provided at the upper end of the water storage tank 6. An electric control valve is provided on the water inlet pipe 62.

[0044] The pressurizing assembly includes a box body 63 installed on one side of the filter tank 2, a piston plate 64 is sealed and slidably connected in the box body 63, a slide rod 65 is connected to the lower end of the piston plate 64, the slide rod 65 slides through the box body 63 and is connected to a push plate 66, the push plate 66 is provided with a pusher, a spring 67 is provided between the upper side of the piston plate 64 and the box body 63, an air inlet 68 is provided on the upper side of the box body 63, a one-way air inlet valve is provided in the air inlet 68, an air outlet 69 is provided on the upper end of the box body 63, a one-way air outlet valve is provided in the air outlet 69, the air outlet 69 is connected to an air duct 691, and the other end of the air duct 691 is connected to the upper side of the water storage tank 6;

[0045] The pusher includes a first transmission wheel 7 fixed on the output shaft of the second motor 51, a vertical plate 71 is connected to the upper side of the separation tank 1, and the vertical plate 71 is rotatably equipped with a second transmission wheel 72. The first transmission wheel 7 and the second transmission wheel 72 are connected by a transmission belt 73. The second transmission wheel 72 is fixed with a cam 74, and the cam 74 abuts against the push plate 66;

[0046] The water storage tank 6 stores cleaning water, and the air duct 691 is located at the upper end of the water storage tank 6. In this way, when oil-water separation is performed, the second motor 51 will be started to drive the plurality of stirring rods 5 to rotate in the separation tank 1. The rotation of the output shaft of the second motor 51 can also drive the second transmission wheel 72 to rotate. The second transmission wheel 72 drives the first transmission wheel 7 to rotate synchronously through the transmission belt 73. The rotation of the first transmission wheel 7 can drive the cam 74 to rotate. Since the cam 74 abuts against the bottom of the push plate 66, when the raised part of the cam 74 rotates to the push plate 66, it can push the push plate 66 to move upward. The push plate 66 drives the piston plate 64 to move upward in the box body 63 through the sliding rod 65. After the raised part of the cam 74 passes through the push plate 66, the restoring elastic force of the spring 67 will push the piston plate 64 to move downward. The piston plate 64 drives the push plate 66 to move downward and reset through the sliding rod 65, so that when the cam 74 continues to rotate, it can drive the push plate 66 to reciprocate up and down;

[0047] When the piston plate 64 moves upward, the air inside the box body 63 can be pushed into the water storage tank 6 through the air outlet 69 and the air duct 691. When the piston plate 64 moves downward, negative pressure can be generated to draw the outside air into the box body 63. The one-way air outlet valve in the air outlet 69 allows the air to move only from the inside of the box body 63 to the water storage tank 6, and the one-way air inlet valve in the air inlet 68 allows the air to enter the box body 63 only from the outside.

[0048] Thus, during the oil-water separation process, the pressurizing assembly can be used to inflate the water storage tank 6, increasing the pressure inside the water storage tank 6, forcing the pressure valve at the water outlet to open, enabling the water inside the water storage tank 6 to enter the spray pipe 61 through the water outlet, and finally spraying out from the spray pipe 61 to wash the surface of the filter screen 211, preventing the oil scale remaining on the surface of the filter screen 211 from solidifying and causing blockage, eliminating the need for manual cleaning and achieving automatic cleaning;

[0049] During the cleaning process, the electric control valve of the water inlet pipe 62 is in a closed state to ensure the sealing performance of the water storage tank 6. When it is not necessary to clean the filter screen 211, only by opening the electric control valve of the water inlet pipe 62 to connect the water inlet pipe 62 with the outside, the pressure inside the water storage tank 6 cannot increase, and the pressure valve at the water outlet will not open. At the same time, cleaning water can be added into the water storage tank 6 through the water inlet pipe 62.

[0050] A slot 8 is provided at the upper end of the filter tank 2. A rotating rod 81 is rotatably arranged in the slot 8. A swinging rod 82 is fixed to the rotating rod 81. The lower end of the swinging rod 82 extends into the filter tank 2 and is connected with a knocking block 83. The other end of the swinging rod 82 extends out of the filter tank 2 and is connected with a pull rope 84. A fixed pulley 85 is installed at the lower end of the box body 63. A through hole is also provided at the lower end of the box body 63. The pull rope 84 bypasses the fixed pulley 85 and passes through the through hole to be connected with the lower side of the piston plate 64;

[0051] When the filter screen 211 is in an inclined state, the knocking block 83 will abut against the upper end of the filter screen 211. When the second motor 51 is started to drive the cam 74 to rotate and the piston plate 64 slides up and down in the box body 63, since one end of the pull rope 84 is connected with the lower end of the piston plate 64 and the pull rope 84 bypasses the fixed pulley 85 and the other end is connected with the upper end of the swinging rod 82, when the piston plate 64 moves upward, it will pull the pull rope 84 upward. The pull rope 84 changes its direction through the fixed pulley 85 and pulls the upper end of the swinging rod 82 downward, that is, the upper end of the swinging rod 82 moves downward with the rotating rod 81 as the center, and the end of the swinging rod 82 extending into the filter tank 2 will move upward, that is, the knocking block 83 moves away from the filter screen 211. When the piston plate 64 moves downward under the push of the spring 67, at this time the pull rope 84 no longer pulls the swinging rod 82, and the swinging rod 82 moves downward under the gravity of the knocking block 83, that is, the knocking block 83 will knock on the filter screen 211. In this way, the knocking block 83 can continuously knock on the filter screen 211, causing the filter screen 211 to vibrate and shaking off the viscous substances attached to the surface of the filter screen 211, improving the cleaning effect of the filter screen 211;

[0052] Furthermore, a torsion spring is arranged on the rotating rod 81. The reset elastic force of the torsion spring drives the swinging rod 82 to reset and knock on the filter screen 211, which can improve the knocking effect on the filter screen 211 and make its vibration amplitude larger.

[0053] Inside the filtering tank 2, there is a drying component. The drying component includes an air pump 9 installed at the upper end of the filtering tank 2. A wind duct 91 is provided on the side wall of the separation tank 1. The lower end of the wind duct 91 communicates with the outside, and the upper end of the wind duct 91 is connected to an air pipe 92. The air pipe 92 is connected to the intake end of the air pump 9. An air outlet pipe 93 is installed on the upper inner wall of the filtering tank 2. The outlet end of the air pump 9 is connected to the air outlet pipe 93.

[0054] After the waste oil and water separation is completed, the flushing mechanism also flushes the inside of the filtering tank 2. At this time, the waste oil in the separation tank 1 still has a relatively high temperature. The air pump 9 can be started. The air pump 9 generates suction, draws in outside air through the lower end of the wind duct 91 and the air pipe 92 into the air outlet pipe 93, and finally blows it from the air outlet pipe 93 into the inside of the filtering tank 2. When the outside air enters the wind duct 91, it can contact the side wall of the separation tank 1, and the air is heated by the remaining temperature of the waste oil, so that finally hot air is blown out from the air outlet pipe 93, realizing the drying of the inside of the filtering tank 2, ensuring the dryness of the filter net 211. At the same time, the air will take away the temperature of the waste oil, accelerating the cooling of the waste oil. After the waste oil is cooled, it can be discharged for the next process.

[0055] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An oily waste water separation device, comprising a separation tank, wherein an oil inlet pipe is arranged at the top of the separation tank, and it is characterized in that: A heater is provided at the bottom of the separation tank. A steam outlet is provided on the upper side of the separation tank. An oil outlet pipe is provided at the bottom of the separation tank. A filter tank is installed at the upper end of the separation tank. A waste oil inlet is provided at the upper end of the filter tank. A first ring is rotatably assembled inside the filter tank through a rotating shaft. A filter screen is installed inside the first ring. An oil outlet is provided at the bottom of the filter tank. The upper end of the inlet pipe is communicated with the oil outlet. A waste liquid outlet is provided on one side of the side wall of the filter tank close to the oil outlet. A sector-shaped groove is provided inside the bottom wall of the filter tank. A sector-shaped plate is rotatably assembled in the sector-shaped groove. The sector-shaped plate is provided with a rotating assembly. The sector-shaped plate is provided with a first through groove that matches the size of the oil outlet. An arc-shaped groove communicated with the sector-shaped groove is provided on the side wall of the filter tank. The end of the sector-shaped plate is connected with a sealing plate located in the arc-shaped groove. A second through groove is provided on one side of the sealing plate away from the waste liquid outlet. The size of the second through groove matches that of the waste liquid outlet. A second ring is rotatably installed outside the filter tank. The rotating shaft penetrates through the filter tank and is connected with a gear. The second ring is provided with a rack meshing with the gear. A movement groove communicated with the outside is provided in the arc-shaped groove. A connecting rod is connected to the lower end of the second ring. The other end of the connecting rod penetrates through the movement groove and is connected with the sealing plate. The rotating assembly includes a first helical gear rotatably assembled at the bottom of the filter tank. The first helical gear is connected with the sector-shaped plate through a transmission rod. A protective shell is installed at the bottom of the filter tank outside the first helical gear. A second helical gear meshing with the first helical gear is rotatably assembled on the side wall of the protective shell. A first motor is installed at the bottom of the filter tank. The output shaft of the first motor penetrates through the protective shell and is in transmission connection with the second helical gear. A flushing mechanism is provided inside the filter tank. The flushing mechanism includes a water storage tank provided with a pressurizing assembly. The pressurizing assembly includes a box body installed on one side of the filter tank. A piston plate is hermetically and slidably connected inside the box body. A slotted hole is provided at the upper end of the filter tank. A rotating rod is rotatably provided in the slotted hole. A swinging rod is fixed to the rotating rod. The lower end of the swinging rod extends into the filter tank and is connected with a knocking block. The other end of the swinging rod extends out of the filter tank and is connected with a pull rope. A fixed pulley is installed at the lower end of the box body. A through hole is also provided at the lower end of the box body. The pull rope bypasses the fixed pulley and passes through the through hole and is connected with the lower side of the piston plate.

2. The waste oil-water separation device according to claim 1, characterized in that: A rotating block is rotatably assembled inside the separation tank. The rotating block is connected with a plurality of uniformly distributed stirring rods. A second motor is installed on the side wall of the separation tank. The output shaft of the second motor penetrates through the separation tank and is connected with the rotating block.

3. The waste oil-water separation device according to claim 2, characterized in that: The water storage tank is provided at the upper end of the filter tank. A water outlet is provided at the bottom of the water storage tank. A water spraying pipe is installed at the upper end inside the filter tank. The water spraying pipe is connected with the water outlet through a pipeline. A pressure valve is provided inside the water outlet. A water inlet pipe is provided at the upper end of the water storage tank. An electric control valve is provided on the water inlet pipe.

4. An oil-water separation device for waste oil according to claim 3, characterized in that: A sliding rod is connected to the lower end of the piston plate, and the sliding rod slides through the box body and is connected to a push plate, and the push plate is provided with a pushing member, and a spring is provided between the upper side of the piston plate and the box body, an air inlet is provided on the upper side of the box body, a one-way air inlet valve is provided in the air inlet, an air outlet is provided at the upper end of the box body, a one-way air outlet valve is provided in the air outlet, and the air outlet is connected to an air duct, and the other end of the air duct is connected to the upper side of the water tank.

5. The waste oil-water separation device according to claim 4, characterized in that: The pushing member includes a first transmission wheel fixed on the output shaft of the second motor, a vertical plate is connected to the upper side of the separation tank, the vertical plate is rotatably equipped with a second transmission wheel, the first transmission wheel and the second transmission wheel are connected by a transmission belt, the second transmission wheel is fixed with a cam, and the cam abuts against the pushing plate.

6. The waste oil-water separation device according to claim 5, characterized in that: A drying component is provided in the filter tank, and the drying component includes an air pump installed at the upper end of the filter tank. An air duct is provided on the side wall of the separation tank, and the lower end of the air duct is connected to the outside world. An air pipe is connected to the upper end of the air duct, and the air pipe is connected to the air inlet end of the air pump. An air outlet pipe is installed on the upper wall of the filter tank, and the air outlet end of the air pump is connected to the air outlet pipe.

7. The waste oil-water separation device according to claim 6, characterized in that: A temperature sensor is provided inside the separation tank, a controller is installed on one side of the filter tank, and the heater and the temperature sensor are both electrically connected to the controller.

Images