Purification treatment device for oily sewage

Abstract

Belonging to the technical field of sewage treatment, the invention discloses an oily sewage purification treatment device, which comprises a box body, a partition plate, a screening pool, a separation pool, a screening basket, a drainage hole, a water inlet pipe, a drainage pipe and an auxiliary cover plate. By arranging the driving assembly and the spraying cleaning assembly, the water draining speed is increased through a water pump at the first time when blockage occurs, sewage in the box body is prevented from overflowing, after the water level is lowered, the spraying cleaning assembly and the driving assembly are started again, a main cover plate is opened firstly, then a screen basket is controlled to move, and then internal impurities are poured out; then, after the screen basket is reset, the screen basket and the drainage holes are subjected to jet dredging, so that the screen basket and the drainage holes can be put into use again, and according to the mode, the sewage liquid level is monitored, the sewage liquid level is urgently regulated and controlled, impurities in the screen basket are automatically treated, and blocked points are further cleaned and dredged, so that a complete blockage coping scheme is formed; the automation degree is high, the maintenance work of the oil separation tank is facilitated, and the working efficiency of the oil separation tank is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a purification treatment device for oily sewage. Background Art

[0002] The grease trap is a common treatment device for oily wastewater. The main principle is to use the density difference between oil and water to produce a flotation effect to separate the floating oil in the wastewater. The interior of the grease trap is mainly divided into a screening tank and a separation tank by a partition. A screen basket is provided in the screening tank. After the sewage enters, it first passes through the screen basket to screen out larger solid impurities, and then passes through the bottom of the partition to enter the grease trap. After the oil and water in the separation tank are separated, the water is discharged through the drain pipe. In addition, a drain hole is provided on the higher part of the partition. Its function is that when the screen basket is blocked or the sewage inflow is large, causing the liquid level to rise, the sewage can enter the separation tank through the drain hole, thereby avoiding the overflow of sewage in the screening tank. However, this type of grease trap still has defects: the drain hole can only passively respond to the situation of screen basket blockage, and the effect is limited. Moreover, the drain hole is immersed in sewage, and it is easy to be blocked by solidified grease or debris for a long time, resulting in the blocking of the screening tank. Manual cleaning and maintenance work is cumbersome, the workload is large, and it is not safe and hygienic enough. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a purification treatment device for oily wastewater, which has the advantages of high processing efficiency and high degree of automation, and solves the problem that the existing grease trap lacks effective measures to deal with screen basket blockage.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a purification treatment device for oily wastewater, comprising a box, a partition, a screening tank, a separation tank, a screen basket, a drain hole, a water inlet pipe, a drain pipe and a secondary cover plate, and also comprising a liquid level sensor, a drive component, a spray cleaning component and a main cover plate; The liquid level sensor is fixedly installed in the screening tank, and the liquid level sensor is used to detect the water level in the screening tank; The driving assembly is installed on the inner wall of the screening tank, and the driving assembly is used to drive the screen basket to move vertically and rotate; The main cover plate is movably installed on the top of the screening pool, and the main cover plate is used to cover the screening pool; The spray cleaning assembly includes a water pump installed on the drain pipe and a movable sprayer installed in the screening tank, the movable sprayer is connected to the drain pipe through a return pipe, the spray cleaning assembly is used to accelerate drainage, clean the screen basket and the drain hole, and the spray cleaning assembly is also used to drive the main cover plate to open and close; When the liquid level sensor detects that the liquid level in the screening tank continues to reach the warning range, the spray cleaning component will operate and accelerate the drainage through the water pump. When the sewage is discharged, the spray cleaning component will operate, forcing the main cover to open, and then the drive component will operate, forcing the screen basket to move up and then flip over, pouring out the debris in the screen basket, and driving the screen basket to reset after pouring out. Finally, the spray cleaning component will operate again, and the water flow at the bottom of the separation tank will be pumped to the movable sprinkler through the water pump, and then sprayed on the screen basket and the drain hole to achieve cleaning.

[0005] Preferably, an isolation shell is fixed to the inner wall of the separation tank, a filter is fixed to the bottom of the isolation shell, one end of the drain pipe extends to the interior of the isolation shell and is fixed with a branch pipe, a first valve is installed on the branch pipe, the water pump is arranged inside the isolation shell, one end of the drain pipe located inside the isolation shell is fixedly connected to the output end of the water pump, and one end of the drain pipe located outside the box body is installed with a second valve.

[0006] Preferably, a rotating shaft is fixed to one edge of one side of the main cover plate, both ends of the rotating shaft are rotatably connected to the inner wall of the screening pool, one end of the rotating shaft extends to the outside of the box body and is fixed with a transmission gear, one side of the transmission gear is meshed with a vertically arranged transmission rack, the transmission rack is vertically slidingly connected to the outer wall of the box body, an inclined rod is hinged at the bottom of the transmission rack, a horizontal plug rod is hinged at the bottom end of the inclined rod, the horizontal plug rod is movably connected to the side wall of the screening pool, the horizontal plug rod is located at one end of the inside of the screening pool and is fixed with an end head, a reset spring is fixed between the end head and the inner wall of the screening pool, and the reset spring is sleeved on the horizontal plug rod.

[0007] Preferably, the spray cleaning assembly also includes a transverse slide rail fixed to the inner wall of the screening pool and a first motor fixed to the outer wall of the box body, a transverse slider is slidably connected in the transverse slide rail, the movable sprayer is installed on the transverse slider, the end head corresponds to the position of the transverse slider, the first motor output shaft is fixed with a transverse screw, the transverse screw passes through the transverse slider and is threadedly connected to the transverse slider, and the two ends of the transverse screw are respectively rotatably connected to the two ends of the transverse slide rail.

[0008] Preferably, the driving assembly includes a vertical slide rail fixed to the inner wall of the screening pool and a second motor fixed to the outer wall of the box body, the vertical slide rail is slidably connected to a vertical slider, the vertical slide rail is also rotatably connected to a vertical screw, the vertical screw penetrates the vertical slider and is threadedly connected to the vertical slider, the second motor output shaft is transmission connected to the vertical screw through a bevel gear set, a horizontal axis is rotatably connected to the vertical slider, a positioning block is fixedly connected to the middle of the horizontal axis, the positioning block is fixedly connected to the top edge of the screen basket through a folding plate, a driven gear is fixedly connected to the end of the horizontal axis, a vertically arranged driven rack is fixedly connected to the side wall of the vertical slide rail, and the driven rack corresponds to the driven gear in position.

[0009] Preferably, the folding plate includes a transverse plate portion and a vertical plate portion which are vertically distributed and integrally formed, the transverse plate portion is fixedly connected to the top edge of the sieve basket and the positioning block, and the vertical plate portion is flush with the side wall of the sieve basket and extends out of the sieve basket opening.

[0010] Preferably, the side wall of the drain pipe at one end outside the box is fixedly connected to the end of the return pipe, a third valve is installed at the end of the return pipe connected to the drain pipe, the other end of the return pipe is fixedly connected to the side wall of the screening pool, and a hose is also fixedly connected to the end of the return pipe, and the hose is connected to the movable sprinkler.

[0011] Preferably, a heating tube is provided in the middle of the reflux pipe, and an electric heating tube is fixedly installed inside the heating tube.

[0012] Preferably, the movable sprinkler includes a driving gear, a base shaft is fixed to one side of the driving gear, the base shaft is rotatably connected to the transverse slider, a torsion spring is installed at the connection between the base shaft and the transverse slider, a base tube is fixed to the side of the driving gear away from the base shaft, a plurality of vertical tubes are fixed to the bottom of the base tube, and a nozzle is fixed to the end of the vertical tube.

[0013] Preferably, a base plate is fixedly connected to the top of the transverse slide rail, a driving rack is fixed to the bottom of the base plate, and the driving rack corresponds to the driving gear in position.

[0014] Compared with the prior art, the present invention provides a purification treatment device for oily wastewater, which has the following beneficial effects: 1. This oily wastewater purification treatment device, by setting a driving component and a spray cleaning component, uses a water pump to increase the drainage speed at the first time of blockage to avoid sewage overflow in the box. When the water level drops, the spray cleaning component and the driving component are started again, the main cover is opened first, and then the sieve basket is controlled to move to pour out the internal impurities, and then the sieve basket and the drain holes are sprayed and dredged after the sieve basket is reset, so that the sieve basket and the drain holes can be put into use again. This method forms a complete blockage response plan by monitoring the sewage level, urgently adjusting the sewage level, automatically processing the impurities in the sieve basket, and further cleaning and unblocking the blockage point. It has a high degree of automation, facilitates the maintenance of the grease trap, and improves the working efficiency of the grease trap.

[0015] 2. This oily wastewater purification treatment device is equipped with a driving component. When the main cover is opened, the second motor is started to drive the screen basket to move up first and then flip over, and then dump the debris in the screen basket outside the box, which is conducive to timely handling of blockages and avoiding the deterioration of blockages and sewage overflow. The degree of automation is high, and the folding plate can provide guidance when dumping debris to ensure that the debris is completely poured out of the box.

[0016] 3. This oily wastewater purification treatment device transports wastewater to the movable sprayer through a water pump, forming a high-pressure water flow to spray out, which can clean the screen basket. At the same time, the first motor can also drive the movable sprayer to move horizontally first and then swing, which can clean all positions of the screen basket and the drain holes together, which is beneficial to further dredge the screen basket and the drain holes and reduce the probability of subsequent blockage. At the same time, the heating cylinder is used to heat the wastewater, and the heat can melt the solidified oil. Combined with the high-pressure characteristics of the water flow, the cleaning work is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of a box body of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the box body of the present invention; Figure 3 A partial cross-sectional view of a screening tank of the present invention; Figure 4 This is a schematic diagram of the main cover plate of the present invention in an open state; Figure 5 For the present invention Figure 4 A magnified view of part A; Figure 6 It is a working schematic diagram of the driving assembly of the present invention; Figure 7 It is a working schematic diagram of the spray cleaning assembly of the present invention; Figure 8 It is a partial cross-sectional view of the heating tube of the present invention.

[0018] In the figure: 1, box body; 101, partition; 102, screening tank; 103, separation tank; 104, screen basket; 105, drain hole; 106, water inlet pipe; 107, drain pipe; 108, auxiliary cover plate; 109, isolation shell; 110, filter screen; 111, branch pipe; 112, first valve; 113, second valve; 2, liquid level sensor; 3, drive assembly; 31, vertical slide rail; 32, second motor; 33, vertical slider; 34, vertical screw; 35, bevel gear set; 36, horizontal axis; 37, positioning block; 38, folding plate; 39, driven gear; 30, driven rack; 4, spray Shower cleaning assembly; 41, water pump; 42, movable sprinkler; 421, driving gear; 422, base shaft; 423, torsion spring; 424, base tube; 425, nozzle; 426, vertical pipe; 43, return pipe; 431, heating tube; 432, electric heating tube; 44, horizontal slide rail; 441, base plate; 442, driving rack; 45, first motor; 46, horizontal slider; 47, horizontal screw; 48, third valve; 49, hose; 5, main cover plate; 6, rotating shaft; 7, transmission gear; 8, transmission rack; 9, inclined rod; 10, horizontal plug rod; 11, end; 12, reset spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a purification treatment device for oily wastewater.

[0021] Example 1: Please refer to Figure 1-Figure 3 , a purification treatment device for oily wastewater, comprising a box body 1, a partition 101, a screening tank 102, a separation tank 103, a screen basket 104, a drain hole 105, a water inlet pipe 106, a drain pipe 107 and an auxiliary cover plate 108, and also comprising a liquid level sensor 2, a drive component 3, a spray cleaning component 4 and a main cover plate 5; The liquid level sensor 2 is fixedly installed in the screening tank 102, and the liquid level sensor 2 is used to detect the water level in the screening tank 102; The driving assembly 3 is installed on the inner wall of the screening tank 102, and the driving assembly 3 is used to drive the screening basket 104 to move vertically and rotate; The main cover plate 5 is movably mounted on the top of the screening pool 102, and the main cover plate 5 is used to cover the screening pool 102; The spray cleaning assembly 4 includes a water pump 41 installed on the drain pipe 107 and a movable sprayer 42 installed in the screening pool 102. The movable sprayer 42 is connected to the drain pipe 107 through a return pipe 43. The spray cleaning assembly 4 is used to accelerate drainage, clean the screen basket 104 and the drain hole 105, and the spray cleaning assembly 4 is also used to drive the main cover plate 5 to open and close; When the liquid level sensor 2 detects that the liquid level in the screening tank 102 continues to reach the warning range, the spray cleaning component 4 operates to accelerate the drainage through the water pump 41. When the sewage is discharged, the spray cleaning component 4 operates to force the main cover 5 to open, and then the drive component 3 operates to force the screen basket 104 to move up and then flip over, pour out the debris in the screen basket 104, and drive the screen basket 104 to reset after pouring out. Finally, the spray cleaning component 4 operates again, and the water flow at the bottom of the separation tank 103 is pumped to the movable sprayer 42 through the water pump 41, and then sprayed on the screen basket 104 and the drain hole 105, thereby achieving cleaning; The box body 1 is horizontally installed on the ground or embedded in the ground, the auxiliary cover plate 108 is installed above the separation tank 103 to cover the separation tank 103, the liquid level sensor 2 is vertically arranged and fixed on the partition 101, and the height of the water inlet of the water pump 41 is lower than the drain pipe 107; When in use, sewage intermittently flows into the box body 1 through the water inlet pipe 106, and is discharged through the drain pipe 107 after oil-water separation. The liquid level sensor 2 monitors the liquid level in the screening tank 102. If the liquid level rises to the warning range, it means that the screen basket 104 is blocked. At this time, the water pump 41 is started, and the water pump 41 discharges the sewage in the separation tank 103 through the drain pipe 107 to increase the discharge speed and avoid the continuous rise of the liquid level. When the water level inside the box body 1 drops to the bottom of the screen basket 104, the spray cleaning component 4 and the drive component 3 are started. After the spray cleaning component 4 is running, the main cover plate 5 is driven to open. When the drive component 3 is running The screen basket 104 is driven to move vertically upward first, and then turned over, so as to pour out the solid debris stored in the screen basket 104 to the outside of the box body 1, and then the driving component 3 controls the screen basket 104 to reset, and the spray cleaning component 4 is operated again, and the main cover plate 5 is reset first, and then the water pump 41 is started. When the water pump 41 is running, the water in the box body 1 is transported to the movable sprayer 42 through the return pipe 43, and then the high-pressure water flow is formed through the movable sprayer 42 and sprayed to the emptied screen basket 104 and the drain hole 105, so as to dredge the screen basket 104 and the drain hole 105, and then the screen basket 104 can be put into use again; By setting up the driving component 3 and the spray cleaning component 4, the water pump 41 is used to increase the drainage speed at the first time of blockage to avoid the sewage in the box 1 from overflowing. When the water level drops, the spray cleaning component 4 and the driving component 3 are started again, the main cover 5 is opened first, and then the sieve basket 104 is controlled to move to pour out the internal impurities, and then the sieve basket 104 and the drain hole 105 are sprayed and dredged after the sieve basket 104 is reset, so that the sieve basket 104 and the drain hole 105 can be put into use again. This method forms a complete blockage response plan by monitoring the sewage level, urgently adjusting the sewage level, automatically processing the impurities in the sieve basket 104, and further cleaning and unblocking the blockage point. The high degree of automation facilitates the maintenance of the grease trap and improves the working efficiency of the grease trap.

[0022] Example 2: See Figure 1 , which is different from the above embodiment, an isolation shell 109 is fixed to the inner wall of the separation tank 103, a filter screen 110 is fixed to the bottom of the isolation shell 109, one end of the drain pipe 107 extends to the inside of the isolation shell 109 and is fixed with a branch pipe 111, a first valve 112 is installed on the branch pipe 111, the water pump 41 is arranged inside the isolation shell 109, one end of the drain pipe 107 located inside the isolation shell 109 is fixedly connected to the output end of the water pump 41, and one end of the drain pipe 107 located outside the box body 1 is installed with a second valve 113; The height of the top of the isolation shell 109 is flush with the height of the top of the partition 101, and the filter 110 is arranged at the bottom to further filter the oil that has not floated up in time in the sewage. When the sewage works normally, the first valve 112 and the second valve 113 are set to the open state, and the sewage enters the drain pipe 107 through the filter 110 and the branch pipe 111 and is discharged; When in use, when the water level in the screening tank 102 monitored by the liquid level sensor 2 continuously reaches the warning range, the first valve 112 on the branch pipe 111 is closed, and the water pump 41 is operated to increase the drainage speed, so as to quickly discharge the sewage in the box body 1 and prevent the sewage from overflowing; By providing the water pump 41, the water can be actively drained by the water pump 41 when necessary, thereby increasing the drainage speed of the grease trap, thereby preventing the sewage inside the box body 1 from overflowing when a blockage occurs.

[0023] Example 3, see Figure 3-Figure 5 , which is different from the above embodiment, a rotating shaft 6 is fixed to one edge of one side of the main cover plate 5, and both ends of the rotating shaft 6 are rotatably connected to the inner wall of the screening tank 102, one end of the rotating shaft 6 extends to the outside of the box body 1 and is fixed with a transmission gear 7, one side of the transmission gear 7 is meshed with a vertically arranged transmission rack 8, and the transmission rack 8 is vertically slidably connected to the outer wall of the box body 1, and an inclined rod 9 is hinged at the bottom of the transmission rack 8, and a horizontal plug rod 10 is hinged at the bottom of the inclined rod 9, and the horizontal plug rod 10 is movably plugged into the side wall of the screening tank 102, and the horizontal plug rod 10 is located inside the screening tank 102. One end is fixed with an end 11, and the end 11 is connected to the screening tank 102 A return spring 12 is fixed between the inner walls, and the return spring 12 is sleeved on the horizontal plug rod 10. The spray cleaning assembly 4 also includes a transverse slide rail 44 fixed to the inner wall of the screening pool 102 and a first motor 45 fixed to the outer wall of the box body 1. A transverse slider 46 is slidably connected in the transverse slide rail 44, and the movable sprayer 42 is installed on the transverse slider 46. The end head 11 corresponds to the position of the transverse slider 46. The output shaft of the first motor 45 is fixed with a transverse screw 47, and the transverse screw 47 passes through the transverse slider 46 and is threadedly connected to the transverse slider 46. The two ends of the transverse screw 47 are respectively rotatably connected to the two ends of the transverse slide rail 44; The end 11 is arranged on the sliding path of the transverse slider 46. When in use, the first motor 45 is started. When the first motor 45 is running, it drives the transverse screw 47 to rotate. When the transverse screw 47 rotates, it drives the transverse slider 46 to slide along the transverse slide rail 44. When the transverse slider 46 slides to one side, it pushes the end 11 to move. When the end 11 moves, it compresses the return spring 12 and drives the horizontal insertion rod 10 to move outside the box body 1. When the horizontal insertion rod 10 moves, it pulls the bottom end of the inclined rod 9, and then the top end of the inclined rod 9 pulls the transmission rack 8 to slide downward. When the transmission rack 8 slides downward, it drives the transmission gear 7 to rotate. The transmission gear 7 drives the rotating shaft 6 to rotate, and then drives the main cover plate 5 to rotate around the rotating shaft 6. The main cover plate 5 rotates upward and then opens; By setting up the spray cleaning component 4, the spray cleaning component 4 drives the horizontal slider 46 to slide when it is in operation, and then drives the main cover 5 to open, which facilitates the subsequent cleaning of the screen basket 104. After the cleaning work is completed, the elastic force of the reset spring 12 drives the end head 11 and the horizontal insertion rod 10 to reset, so that the main cover 5 is closed again, and the grease trap is covered to prevent foreign matter from entering the grease trap.

[0024] Example 4, see Figure 3 and Figure 6 , which is different from the above embodiment, the driving assembly 3 includes a vertical slide rail 31 fixed to the inner wall of the screening pool 102 and a second motor 32 fixed to the outer wall of the box body 1, the vertical slide rail 31 is slidably connected to a vertical slider 33, and the vertical slide rail 31 is also rotatably connected to a vertical screw 34, the vertical screw 34 penetrates the vertical slider 33 and is threadedly connected to the vertical slider 33, the output shaft of the second motor 32 is transmission-connected to the vertical screw 34 through a bevel gear set 35, the vertical slider 33 is rotatably connected to a horizontal shaft 36, and the horizontal shaft 36 is The folding plate 38 is fixedly connected to the top edge of the sieve basket 104 with a positioning block 37, and the positioning block 37 is fixedly connected to the top edge of the sieve basket 104 through a folding plate 38. The end of the horizontal shaft 36 is fixedly connected to a driven gear 39. The side wall of the vertical slide rail 31 is fixedly connected to a vertically arranged driven rack 30, and the driven rack 30 corresponds to the driven gear 39 in position. The folding plate 38 includes a vertically distributed and integrally formed horizontal plate portion and a vertical plate portion. The horizontal plate portion is fixedly connected to the top edge of the sieve basket 104 and the positioning block 37, and the vertical plate portion is flush with the side wall of the sieve basket 104 and extends out of the opening of the sieve basket 104; The bevel gear set 35 includes a first bevel gear and a second bevel gear meshing with each other, the first bevel gear is fixed to the output shaft of the second motor 32, and the second bevel gear is fixed to the vertical screw 34. When the screen basket 104 is normally installed inside the screening tank 102, one side of the positioning block 37 abuts against the surface of the vertical slide rail 31, and the driven rack 30 is arranged above the side wall of the vertical slide rail 31. When in use, the second motor 32 is started. After the second motor 32 is running, it drives the vertical screw 34 to rotate through the bevel gear set 35. When the vertical screw 34 rotates, it drives the vertical slider 33 to move up along the vertical slide rail 31. When the vertical slider 33 moves up, it drives the horizontal shaft 36, the driven gear 39, the positioning block 37, the folding plate 38 and the screen basket 104 to move vertically upward. When the screen basket 104 moves up and approaches the top of the box body 1, the driven gear 39 contacts the driven rack 30 and moves along the driven rack 30 rolls, and the rotation of the driven gear 39 causes the horizontal shaft 36 to rotate. When the horizontal shaft 36 rotates, the folding plate 38 and the screen basket 104 are driven to rotate around the axis of the horizontal shaft 36. When the screen basket 104 rotates, the solid debris inside is tilted to one side and slides along the vertical plate part on the folding plate 38 to the outside of the box body 1. After that, the second motor 32 drives the vertical screw 34 to rotate in the opposite direction after running, and the housing drives the screen basket 104 to reset, thereby realizing the processing of solid debris to prevent the blockage from worsening. By setting the driving component 3, when the main cover 5 is opened, starting the second motor 32 can drive the screen basket 104 to move up first and then flip over, and then dump the debris in the screen basket 104 outside the box body 1, which is conducive to timely handling of blockages and avoiding the deterioration of blockages and sewage overflow. The degree of automation is high, and the folding plate 38 can provide guidance when dumping debris to ensure that the debris is completely poured out of the box body 1.

[0025] Example 5, see Figure 2 , Figure 4-Figure 8 , which is different from the above-mentioned embodiment, the side wall of the drain pipe 107 at one end outside the box body 1 is fixedly connected to the end of the return pipe 43, the end of the return pipe 43 connected to the drain pipe 107 is installed with a third valve 48, the other end of the return pipe 43 is fixedly connected to the side wall of the screening tank 102, the end of the return pipe 43 is also fixedly connected to a hose 49, the hose 49 is connected to the movable sprinkler 42, a heating cylinder 431 is provided in the middle of the return pipe 43, an electric heating tube 432 is fixedly installed inside the heating cylinder 431, and the movable sprinkler 42 includes a driving gear 42 1. A base shaft 422 is fixed to one side of the driving gear 421. The base shaft 422 is rotatably connected to the transverse slider 46. A torsion spring 423 is installed at the connection between the base shaft 422 and the transverse slider 46. A base tube 424 is fixed to the side of the driving gear 421 away from the base shaft 422. A plurality of vertical tubes 426 are fixed to the bottom of the base tube 424. A nozzle 425 is fixed to the end of the vertical tube 426. A base plate 441 is fixed to the top of the transverse slide rail 44. A driving rack 442 is fixed to the bottom of the base plate 441. The driving rack 442 corresponds to the position of the driving gear 421. In the normal state, the third valve 48 is closed, the driving rack 442 and the end 11 are respectively located on different sides of the transverse slider 46. After the debris in the screen basket 104 is poured out, there are still some blockages caused by solidified oil or solid debris in the holes on the screen basket 104 and the drain holes 105. Therefore, at this time, the spray cleaning component 4 is used for further cleaning. In the initial state, the nozzle 425 is set downward; When in use, close the first valve 112 on the branch pipe 111 and the second valve 113 on the drain pipe 107, open the third valve 48 on the return pipe 43, and then start the water pump 41, the water pump 41 transports the sewage in the box to the return pipe 43, the sewage in the return pipe 43 is heated by the energized electric heating tube 432 when passing through the heating cylinder 431, and then the heated sewage enters the base pipe 424 through the hose 49, and finally forms a high-pressure water flow through the nozzle 425 at the bottom of each vertical pipe 426 to spray downward, and at the same time start the first motor 45, when the first motor 45 is running, it drives the transverse screw 47 to rotate, and when the transverse screw 47 rotates, it drives the transverse slider 46 to move along the transverse slide rail 4 4 slides, and when the horizontal slider 46 moves, it drives the entire movable sprayer 42 to move, thereby flushing and cleaning each position of the bottom screen basket 104. When the movable sprayer 42 moves close to the partition 101, the driving gear 421 contacts the driving rack 442 and rolls along the surface of the driving rack 442, thereby driving the base shaft 422 and the base pipe 424 to rotate, and also deforms the torsion spring 423. When the base pipe 424 rotates, it drives the multiple vertical pipes 426 to swing. After the vertical pipe 426 swings, the nozzle 425 just faces the drain hole 105 on the partition 101, so as to flush and clean the drain hole 105. The heat in the sewage can melt the solidified oil stains, making it easier to clean; The sewage is transported to the movable sprinkler 42 by the water pump 41, forming a high-pressure water flow to be sprayed out, which can clean the sieve basket 104. At the same time, the first motor 45 can also drive the movable sprinkler 42 to move horizontally first and then swing, so as to clean each position of the sieve basket 104 and the drain holes 105 together, which is beneficial to further dredge the sieve basket 104 and the drain holes 105 and reduce the probability of subsequent blockage. At the same time, the heating cylinder 431 is used to heat the sewage, and the heat can melt the solidified oil stains. Combined with the high-pressure characteristics of the water flow, the cleaning work is more efficient.

[0026] 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. A purification device for oily wastewater, comprising a box, a partition, a screening tank, a separation tank, a screen basket, a drainage hole, a water inlet pipe, a drain pipe and a secondary cover plate, characterized in that: It also includes a liquid level sensor, a drive assembly, a spray cleaning assembly and a main cover; The liquid level sensor is fixedly installed in the screening tank, and the liquid level sensor is used to detect the water level in the screening tank; The driving assembly is installed on the inner wall of the screening tank, and the driving assembly is used to drive the screen basket to move vertically and rotate; The main cover plate is movably installed on the top of the screening pool, and the main cover plate is used to cover the screening pool; The spray cleaning assembly includes a water pump installed on the drain pipe and a movable sprayer installed in the screening tank, the movable sprayer is connected to the drain pipe through a return pipe, the spray cleaning assembly is used to accelerate drainage, clean the screen basket and the drain hole, and the spray cleaning assembly is also used to drive the main cover plate to open and close; When the liquid level sensor detects that the liquid level in the screening tank continues to reach the warning range, the spray cleaning component will operate and accelerate the drainage through the water pump. When the sewage is discharged, the spray cleaning component will operate, forcing the main cover to open, and then the drive component will operate, forcing the screen basket to move up and then flip over, pouring out the debris in the screen basket, and driving the screen basket to reset after pouring out. Finally, the spray cleaning component will operate again, and the water flow at the bottom of the separation tank will be pumped to the movable sprinkler through the water pump, and then sprayed on the screen basket and the drain hole to achieve cleaning.

2. The oily wastewater purification device according to claim 1, characterized in that: An isolation shell is fixed to the inner wall of the separation tank, a filter is fixed to the bottom of the isolation shell, one end of the drain pipe extends to the interior of the isolation shell and is fixed with a branch pipe, a first valve is installed on the branch pipe, the water pump is arranged inside the isolation shell, one end of the drain pipe located inside the isolation shell is fixedly connected to the output end of the water pump, and one end of the drain pipe located outside the box body is installed with a second valve.

3. The oily wastewater purification device according to claim 1, characterized in that: A rotating shaft is fixed to one edge of one side of the main cover plate, and both ends of the rotating shaft are rotatably connected to the inner wall of the screening pool, one end of the rotating shaft extends to the outside of the box body and is fixed with a transmission gear, one side of the transmission gear is meshed with a vertically arranged transmission rack, and the transmission rack is vertically slidingly connected to the outer wall of the box body, an inclined rod is hinged at the bottom of the transmission rack, and a horizontal plug rod is hinged at the bottom end of the inclined rod, and the horizontal plug rod is movably connected to the side wall of the screening pool, and the horizontal plug rod is located at one end of the horizontal plug rod inside the screening pool and is fixed with an end head, a reset spring is fixed between the end head and the inner wall of the screening pool, and the reset spring is sleeved on the horizontal plug rod.

4. The oily wastewater purification device according to claim 3 is characterized in that: The spray cleaning assembly also includes a transverse slide rail fixed to the inner wall of the screening pool and a first motor fixed to the outer wall of the box body, a transverse slider is slidably connected in the transverse slide rail, the movable sprayer is installed on the transverse slider, the end head corresponds to the position of the transverse slider, the first motor output shaft is fixed with a transverse screw, the transverse screw passes through the transverse slider and is threadedly connected to the transverse slider, and the two ends of the transverse screw are respectively rotatably connected to the two ends of the transverse slide rail.

5. The oily wastewater purification device according to claim 1, characterized in that: The driving assembly includes a vertical slide rail fixed to the inner wall of the screening pool and a second motor fixed to the outer wall of the box body, a vertical slider is slidably connected inside the vertical slide rail, a vertical screw is also rotatably connected inside the vertical slide rail, the vertical screw penetrates the vertical slider and is threadedly connected to the vertical slider, the output shaft of the second motor is transmission connected to the vertical screw through a bevel gear set, a horizontal shaft is rotatably connected to the vertical slider, a positioning block is fixedly connected to the middle of the horizontal shaft, the positioning block is fixedly connected to the top edge of the screen basket through a folding plate, a driven gear is fixedly connected to the end of the horizontal shaft, a vertically arranged driven rack is fixedly connected to the side wall of the vertical slide rail, and the driven rack corresponds to the driven gear in position.

6. The oily wastewater purification device according to claim 5, characterized in that: The folding plate includes a transverse plate portion and a vertical plate portion which are vertically distributed and integrally formed, the transverse plate portion is fixedly connected to the top edge of the screen basket and the positioning block, and the vertical plate portion is flush with the side wall of the screen basket and extends out of the screen basket opening.

7. The oily wastewater purification device according to claim 4 is characterized in that: The side wall of the drain pipe at one end outside the box is fixedly connected to the end of the return pipe, a third valve is installed at one end of the return pipe connected to the drain pipe, the other end of the return pipe is fixedly connected to the side wall of the screening pool, and a hose is also fixedly connected to the end of the return pipe, which is connected to a movable sprinkler.

8. The oily wastewater purification device according to claim 7 is characterized in that: A heating tube is arranged in the middle of the reflux pipe, and an electric heating tube is fixedly installed inside the heating tube.

9. The oily wastewater purification device according to claim 7, characterized in that: The movable sprinkler includes a driving gear, a base shaft is fixed on one side of the driving gear, the base shaft is rotatably connected to a transverse slider, a torsion spring is installed at the connection between the base shaft and the transverse slider, a base tube is fixed on the side of the driving gear away from the base shaft, a plurality of vertical tubes are fixed on the bottom of the base tube, and a nozzle is fixed on the end of the vertical tube.

10. The oily wastewater purification device according to claim 9, characterized in that: A base plate is fixedly connected to the top of the transverse slide rail, a driving rack is fixed to the bottom of the base plate, and the driving rack corresponds to the driving gear in position.

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