A continuous sewage treatment device

Abstract

The present invention relates to the technical field of sewage treatment, and in particular to a continuous sewage treatment device. It comprises a water storage tank, the water storage tank is fixedly connected with a symmetrically distributed first push rod, the telescopic end of the first push rod is fixedly connected with a push plate, the water storage tank is fixedly connected with an oil pumping pipe, the lower part of the oil pumping pipe is fixedly connected with an adjusting shell, the adjusting shell is slidably connected with a lifting frame, the oil push plate is rotatably connected with a sealing shell, the oil pumping pipe is fixedly connected with a first telescopic rod through a support frame, the telescopic end of the first telescopic rod is fixedly connected with a first float, the push plate is fixedly connected with a lifting pipe, the telescopic end of the lifting pipe is fixedly connected with a second telescopic rod, and the telescopic end of the second telescopic rod is fixedly connected with a second float. The present invention determines the height of the oil-water interface through the second float, and after the first float and the second float are at the same height, the sealing shell is pushed to rotate the sealing oil push plate to avoid direct contact between the float and the oil during oil pumping, resulting in reduced accuracy during oil pumping.

Description

Technical Field

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

[0002] Existing sewage treatment devices are used for sewage treatment in various fields, including the treatment of petroleum sewage. Petroleum sewage contains a large amount of oil. In order to reduce the waste of resources, the existing devices will extract and collect the oil suspended on the upper side of the sewage during the treatment of petroleum sewage. When the existing device extracts the oil on the upper side of the sewage, the float in the oil extraction pipe controls the opening and closing of the oil extraction pipe mouth to prevent the pipe mouth of the oil extraction pipe from entering the sewage during the oil extraction process. However, during the oil extraction process of the existing device, the float will directly contact the oil in the sewage, so that the oil in the sewage adheres to the surface of the float, increasing the weight of the float, resulting in an increase in the buoyancy required for the float to rise. When extracting oil near the boundary between oil and sewage, the float is located at a position lower than the boundary between sewage and oil, causing the position of the oil extraction pipe mouth to move downward together, resulting in the oil extraction pipe pumping out the sewage together. Summary of the invention

[0003] The present invention provides a continuous sewage treatment device for solving the problem that when the existing device treats petroleum sewage, petroleum adheres to the surface of the float, causing the float to move downward, and the oil extraction pipe is prone to extracting sewage together with the oil when extracting the oil.

[0004] The technical solution of the present invention is: a continuous sewage treatment device, including a water storage tank, the water storage tank is fixedly connected with a symmetrically distributed first push rod, the telescopic end of the first push rod is fixedly connected with a push plate slidably connected to the water storage tank, the push plate is provided with evenly distributed through holes, a filter is provided in the through holes, an oil pumping pipe is fixedly connected to the upper part of the water storage tank, an oil push plate is fixedly connected to the lower side of the oil pumping pipe, the oil push plate is provided with evenly distributed through holes, an adjusting shell is fixedly connected to the lower part of the oil pumping pipe, the adjusting shell is slidably connected with a lifting frame, the oil push plate is rotatably connected with a sealing shell that is limited and slidably matched with the lifting frame, and the sealing The sealing shell is provided with evenly distributed through holes, and the sealing shell is sealed with the oil pushing plate. The oil pumping pipe is fixedly connected with a first telescopic rod through a support frame, and the first telescopic rod is connected with the adjusting shell. A spring is arranged in the first telescopic rod, and a first floating ball is fixedly connected to the telescopic end of the first telescopic rod. A lifting pipe is fixedly connected to the side of any push plate away from the oil pumping pipe, and a second telescopic rod is fixedly connected to the telescopic end of the lifting pipe, and a spring is arranged in the second telescopic rod, and a second floating ball is fixedly connected to the telescopic end of the second telescopic rod. A lifting assembly is arranged on the upper part of the water storage tank, and the lifting assembly is used to adjust the height of the oil pushing plate.

[0005] Preferably, the density of the first float and the second float are both less than the density of oil.

[0006] Preferably, the lifting assembly includes a second push rod, the second push rod is fixedly connected to the upper portion of the water storage tank, the telescopic end of the second push rod is fixedly connected to the support frame of the oil pumping pipe, the water storage tank is fixedly provided with an adjustable telescopic rod on the side close to the second push rod, the telescopic end of the adjustable telescopic rod is fixedly connected to the support frame of the oil pumping pipe, the side of the adjustable telescopic rod close to the first telescopic rod is connected to the side of the second telescopic rod away from the lifting tube, the lifting tube is fixedly provided with a sealing ring, the lifting tube is provided with an exhaust hole on the side of the lifting tube close to the second telescopic rod, the sealing ring is sealed and matched with the exhaust hole on the lifting tube, the sealing ring is connected with the second telescopic rod, the adjusting shell is slidably connected to the limiting rod, a tension spring is provided between the limiting rod and the adjusting shell, the limiting rod is limited and matched with the lifting frame, and a sealing assembly is provided on the push plate, and the sealing assembly is used to seal the through hole on the adjacent push plate.

[0007] Preferably, the height of the second float is lower than that of the first float, and the distance between the second float and the first float is the distance moved by the telescopic end of the lifting tube.

[0008] Preferably, the sealing assembly includes an adjusting frame, the push plate is provided with a slide groove, the adjusting frame is slidably connected in the slide groove of the push plate, a sealing plate is fixedly connected to one end of the adjusting frame away from the oil pumping pipe, the sealing plate is provided with evenly distributed through holes, the sealing plate is sealingly matched with the through holes on the adjacent push plate, and a cleaning mechanism is provided on the upper part of the push plate, and the cleaning mechanism is used to clean impurities adhered to the adjacent push plates.

[0009] Preferably, the cleaning mechanism includes a symmetrically distributed third telescopic rod, the third telescopic rod is fixedly connected to the upper part of the adjacent push plate, the telescopic end of the third telescopic rod is squeezed and matched with the water storage tank, the third telescopic rod is fixedly connected to and communicated with the fourth telescopic rod, a tension spring is arranged in the fourth telescopic rod, the telescopic ends of the symmetrically distributed fourth telescopic rods are commonly fixedly connected with a cleaning plate, the cleaning plate is slidably matched with the adjacent push plate, the cleaning plate is slidably connected with symmetrically distributed sliding rods, and a spring is arranged between the sliding rod and the adjacent cleaning plate. Spring, the dorsal ends of the symmetrically distributed sliding rods are fixedly connected with telescopic plates that slide with the adjacent push plates, the water storage tank and the adjacent cleaning plates are squeezed with the telescopic plates, the push plate is slidably connected with an L-shaped plate, a spring is arranged between the L-shaped plate and the adjacent push plate, the L-shaped plate is limitedly matched with the adjacent cleaning plate, the water storage tank is fixedly connected with a limiting block, the limiting block is squeezed with the adjacent L-shaped plate, and a symmetrically distributed collecting mechanism is arranged in the water storage tank, the collecting mechanism is used to collect impurities in sewage.

[0010] Preferably, the L-shaped plate is composed of a horizontal bar and a vertical bar, and a slope is provided on one side of the horizontal bar close to the adjacent cleaning plate, and the slope is directed downward.

[0011] Preferably, the collecting mechanism includes symmetrically distributed sliding tubes, the symmetrically distributed sliding tubes are all fixedly connected to one side of the water storage tank close to the adjacent first push rod, the sliding tube is slidably connected to a sliding rod on one side close to the adjacent push plate, the sliding rod is communicated with the adjacent sliding tube, a spring is arranged between the sliding tube and the adjacent sliding rod, the sliding rod is fixedly connected to and communicated with a limited telescopic tube on one side close to the adjacent push plate, the push plate is slidably connected to a lifting rod on one side close to the adjacent sliding tube, the telescopic end of the limited telescopic tube is connected to the adjacent The lifting rod is limited in position, and a gathering shell is fixedly connected to the lower part of the lifting rod, and the gathering shell is slidably connected to the adjacent push plate, and the push plate is slidably connected to a limiting frame that is limited in position with the adjacent lifting rod, and the limiting frame is squeezed and matched with the adjacent sliding rod, and a spring is arranged between the limiting frame and the adjacent push plate, and the limiting frame is limited and matched with the adjacent adjusting frame, and a water pump is arranged on the side of the push plate close to the adjacent lifting rod, and a collecting shell is arranged on the lower part of the water storage tank close to the adjacent sliding tube, and an electric baffle is arranged in the collecting shell.

[0012] Preferably, a U-shaped plate is fixedly connected to the telescopic end of the position-limiting telescopic tube, the U-shaped plate is position-limitedly matched with the adjacent lifting rod, and the opening of the U-shaped plate faces one side of the adjacent push plate.

[0013] Preferably, it also includes a symmetrically distributed adjusting mechanism, which is arranged in the water storage tank and is used to adjust the height of the liquid level. The adjusting mechanism includes an air bag, which is fixed in the water storage tank, and the air bag is fixed and connected to a ventilation pipe. A floating rod is slidably connected to the upper part of the ventilation pipe, and the floating rod is slidably connected to the adjusting rod. A spring is arranged between the adjusting rod and the adjacent ventilation pipe, and the lower ends of the floating rod and the adjusting rod are both provided with evenly distributed through holes, and the floating rod is sealed with the adjacent adjusting rod. The upper ends of the floating rod and the adjusting rod are both provided with suspended blocks, and a circular plate is arranged in the ventilation pipe, and the circular plate is provided with evenly distributed through holes, and the axis of the through holes on the circular plate coincides with the axis of the adjacent through holes on the adjacent floating rod, and the circular plate is sealed with the adjacent adjusting rod.

[0014] The present invention has the following advantages: 1. When the present invention extracts oil from sewage, the height of the oil-water interface in the sewage is determined by the second float in the right chamber of the water storage tank, so that when the oil extraction pipe is extracting oil, after the first float and the second float are at the same height, the sealing shell rotates the sealing oil pushing plate, and no longer extracts oil from the sewage, and discharges the remaining sewage. Subsequently, sewage to be treated is sent into the water storage tank to extract oil, thereby realizing continuous sewage treatment and avoiding direct contact between the float and the oil during oil extraction, which causes the oil to be adsorbed on the surface of the float, affects the buoyancy of the float, and reduces the accuracy of oil extraction.

[0015] 2. When sewage is added, the present invention seals the through holes on the adjacent push plates through the sealing plates, so that the sewage cannot enter the left and right chambers of the water storage tank, thereby preventing the second float from contacting the oil in the sewage, affecting the weight of the second float, and affecting the height of the oil extraction pipe.

[0016] 3. When the present invention extracts the oil from the sewage, the gas is introduced into the airbag to expand the airbag, thereby changing the height of the water level in the sewage and raising the level of the oil-water separation, thereby avoiding the situation where the oil-water level is low when the proportion of oil in the sewage is large, resulting in the oil extraction pipe being unable to extract all the oil from the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the lifting tube, the second push rod and the fourth telescopic rod of the present invention;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the oil pumping pipe, the oil pushing plate and the regulating shell of the present invention;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the lifting frame, the sealing shell and the first telescopic rod of the present invention;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the lifting frame, the sealing shell and the limiting rod of the present invention;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the adjustment frame, the sealing plate and the fourth telescopic rod of the present invention;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the lifting tube, the second telescopic rod and the second floating ball of the present invention;

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the cleaning plate, the sliding rod and the telescopic plate of the present invention;

[0025] Fig. 9It is a schematic diagram of the three-dimensional structure of the fourth telescopic rod, the cleaning plate and the L-shaped plate of the present invention;

[0026] Fig.10 It is a three-dimensional structural schematic diagram of the lifting rod, the gathering shell and the water pump of the present invention;

[0027] Fig.11 It is a schematic diagram of the three-dimensional structure of the sliding rod, the limiting telescopic tube and the lifting rod of the present invention;

[0028] Fig.12 It is a schematic diagram of the three-dimensional structure of the push plate, lifting rod and limit frame of the present invention;

[0029] Fig.13 It is a three-dimensional structural schematic diagram of the air bag, the vent pipe and the floating rod of the present invention;

[0030] Fig.14 It is a schematic diagram of the three-dimensional structure of the vent pipe, the floating rod and the adjusting rod of the present invention;

[0031] Fig.15 It is a partial cross-sectional view of the vent pipe, floating rod and adjusting rod of the present invention.

[0032] In the above drawings: 1-water tank, 2-first push rod, 3-push plate, 4-oil pumping pipe, 5-oil push plate, 6-adjusting shell, 7-lifting frame, 8-sealing shell, 9-first telescopic rod, 10-first floating ball, 11-lifting tube, 12-second telescopic rod, 13-second floating ball, 21-second push rod, 22-adjusting telescopic rod, 23-sealing ring, 24-limiting rod, 31-adjusting frame, 32-sealing plate, 41-third telescopic rod, 42-fourth telescopic rod, 43-cleaning plate, 44-sliding rod, 45-telescopic plate, 46-L-shaped plate, 47-limiting block, 51-sliding tube, 52-sliding rod, 53-limiting telescopic tube, 54-lifting rod, 55-gathering shell, 56-limiting frame, 57-water pump, 58-collecting shell, 61-air bag, 62-ventilation pipe, 63-floating rod, 64-adjusting rod. DETAILED DESCRIPTION

[0033] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0034] In order to avoid wasting resources, existing devices will recover the oil in the oil wastewater when treating it. However, when collecting the oil in the wastewater, the existing devices need to use a float to determine the decomposition surface of the oil and water. During this process, some of the oil will be adsorbed on the surface of the float, causing the weight of the float to change, resulting in a decrease in the accuracy of the oil extraction pipe when extracting oil.

[0035] Embodiment 1: A continuous sewage treatment device, such as Figure 1-Figure 7As shown, a water storage tank 1 is included, a feed port and a discharge port are arranged in the middle of the lower side of the water storage tank 1, two first push rods 2 symmetrically distributed on the left and right are fixedly connected to the water storage tank 1, the telescopic end of the first push rod 2 is fixedly connected to a push plate 3 slidably connected to the water storage tank 1, the two push plates 3 divide the water storage tank 1 into three chambers of left, middle and right, so that the oil in the sewage is located in the chamber that is always located in the middle of the water storage tank 1, the lower part of the push plate 3 is provided with evenly distributed through holes, and a filter is arranged in the through holes for filtering solid impurities in the sewage, an oil extraction pipe 4 is fixedly connected to the upper part of the water storage tank 1, the middle part of the oil extraction pipe 4 is a corrugated pipe, the lower side of the oil extraction pipe 4 is fixedly connected and connected to an oil push plate 5, the oil push plate 5 is a cylindrical round shell, and the lower side surface of the oil push plate 5 is an arc surface, and the oil push plate The side of 5 is provided with evenly distributed through holes, and the outer side of the through hole is connected with a bend pipe, the opening of the bend pipe faces downward, and the lower end of the bend pipe is higher than the upper side of the arc surface of the oil pushing plate 5, which is used to prevent water in the sewage from entering the oil pushing plate 5. The lower part of the oil pumping pipe 4 is fixedly connected with an adjusting shell 6, and a lifting frame 7 is slidably connected in the adjusting shell 6. The lifting frame 7 is composed of a circular plate and a round rod. A convex block is fixedly connected to the lower part of the round rod on the lifting frame 7. The oil pushing plate 5 is rotatably connected with a sealing shell 8, and a slide groove is provided in the sealing shell 8. The slide groove is an inclined slide groove. The convex block on the lifting frame 7 is located in the slide groove of the sealing shell 8, which is used to drive the sealing shell 8 to rotate when the lifting frame 7 moves. The sealing shell 8 is provided with evenly distributed through holes, and the number of through holes on the sealing shell 8 is the same as that on the oil pushing plate 5. The number of holes is the same. The sealing shell 8 is sealed with the oil pushing plate 5. When the liquid level of oil in the sewage is flush with the liquid level of water, the sealing shell 8 rotates the sealing oil pushing plate 5 to prevent the oil pushing plate 5 from continuing to extract oil in the sewage, causing the water in the sewage to enter the oil pushing plate 5. The oil extraction pipe 4 is fixedly connected to the first telescopic rod 9 through the support frame. The upper side of the first telescopic rod 9 is connected to the upper side of the adjusting shell 6. The first telescopic rod 9 and the adjusting shell 6 are filled with gas. A spring is arranged in the first telescopic rod 9. The telescopic end of the first telescopic rod 9 is fixedly connected to the first floating ball 10, which is used to drive the lifting frame 7 to move upward after the oil extraction is completed. The upper part of the right side of the right push plate 3 is fixedly connected to the lifting pipe 11, and the telescopic end of the lifting pipe 11 is fixedly connected to the second telescopic rod 11. The retractable rod 12, a spring is arranged in the second telescopic rod 12, and the telescopic end of the second telescopic rod 12 is fixedly connected with a second float 13, and the second float 13 is used to determine the position of the liquid level between the oil and the water in the sewage to avoid the oil being adsorbed on the surface of the float after the float contacts the oil, which affects the buoyancy of the float and reduces the accuracy when pumping oil. The first float 10 and the second float 13 have the same density and are both less than the density of the oil, so that the first float 10 and the second float 13 can both float on the upper side of the oil, and at the same time, after the first float 10 is moved to the same height as the second float 13, the sealing shell 8 seals the adjacent oil push plate 5, and a lifting assembly is arranged on the upper part of the water storage tank 1, and the lifting assembly is used to adjust the height of the oil push plate 5.

[0036] like Figure 5-Figure 7As shown, the lifting assembly includes a second push rod 21, the second push rod 21 is fixedly connected to the upper part of the water storage tank 1, the telescopic end of the second push rod 21 is fixedly connected to the support frame of the oil pumping pipe 4, and an adjusting telescopic rod 22 is fixedly connected to the upper side of the water storage tank 1, and the telescopic end of the adjusting telescopic rod 22 is fixedly connected to the support frame of the oil pumping pipe 4, which is used to adjust the height of the oil pushing plate 5 so that the oil pushing plate 5 is located near the interface between oil and water, and the lower side of the adjusting telescopic rod 22 is connected to the upper side of the lifting pipe 11, which is used to move downward synchronously when the oil pumping pipe 4 moves downward. The gas in the adjustable telescopic rod 22 enters the lifting tube 11. The lifting tube 11 and the adjustable telescopic rod 22 are both filled with gas, pushing the second telescopic rod 12 to move downward synchronously. The lifting tube 11 is fixedly connected with a sealing ring 23. The sealing ring 23 is made of elastic material. An exhaust hole is provided on the lower side of the lifting tube 11. The sealing ring 23 is sealed with the exhaust hole on the lifting tube 11. The sealing ring 23 is connected with the upper part of the second telescopic rod 12, and is used for the gas in the second telescopic rod 12 to enter the sealing hole after the second float 13 contacts the sewage. The lifting pipe 11 is sealed in the ring 23 to prevent the oil pumping pipe 4 from continuing to move downward. The height of the second float 13 is lower than the height of the first float 10, and the distance between the two is the distance moved by the telescopic end of the lifting pipe 11, which is used to make the height of the second float 13 the same as the height of the initial position of the first float 10 after the position of the oil pumping pipe 4 is fixed. The adjusting shell 6 is slidably connected with four evenly distributed limit rods 24. Tension springs are arranged between the four limit rods 24 and the adjusting shell 6. The tension springs are initially in a stretched state. Evenly distributed grooves are arranged on the upper part of the round rod of the lifting frame 7. The limit rods 24 are limitedly matched with adjacent grooves on the lifting frame 7. After the lifting frame 7 moves downward, the limit rods 24 enter the adjacent grooves on the lifting frame 7 to limit its upward movement, so as to prevent the lifting frame 7 from moving upward and driving the sealing shell 8 to rotate after the first float 10 moves downward after the oil level in the sewage is lowered, so that the oil push plate 5 cannot continue to extract oil. A sealing component is arranged on the push plate 3, and the sealing component is used to seal the through holes on the adjacent push plates 3.

[0037] like Figure 3 and Figure 6As shown, the sealing assembly includes an adjusting frame 31, a slide groove is provided at the lower part of the push plate 3, the adjusting frame 31 is slidably connected in the slide groove of the push plate 3, the upper part of the adjusting frame 31 is provided on the suspension block, and is used to drive the adjacent adjusting frame 31 to move upward, and a sealing plate 32 is fixedly connected to the lower end of the adjusting frame 31, and the sealing plate 32 is provided with evenly distributed through holes, and the number of through holes on the sealing plate 32 is the same as the number of through holes on the push plate 3, and the position and number of through holes on the sealing plate 32 and the push plate 3 can be adjusted according to actual conditions, and the sealing plate 32 is sealed and matched with the through holes on the adjacent push plate 3, so as to prevent the oil in the sewage from passing through the through holes on the push plate 3 and entering the chambers on the left and right sides of the water storage tank 1 when the sewage level in the water storage tank 1 is low, so that this part of the oil cannot be collected, and at the same time, the oil entering the chamber on the right side of the water storage tank 1 will affect the height of the second float 13 in the subsequent process, and affect the extraction accuracy of the oil in the sewage, and a cleaning mechanism is provided on the upper part of the push plate 3, and the cleaning mechanism is used to clean the impurities adhered to the adjacent push plate 3.

[0038] like Figure 3 , Figure 6 , Figure 8 and Fig. 9 As shown, the orientations in this embodiment are all based on Figure 3For example, the cleaning mechanism includes two third telescopic rods 41 symmetrically distributed front and back, the two third telescopic rods 41 are fixedly connected to the upper part of the adjacent push plate 3, the telescopic ends of the two third telescopic rods 41 are squeezed and matched with the water storage tank 1, and are used to drive the telescopic end of the adjacent fourth telescopic rod 42 to move upward, the left end of the third telescopic rod 41 is fixedly connected and connected to the fourth telescopic rod 42, a tension spring is arranged in the fourth telescopic rod 42, and the tension spring is initially in a stretched state, the telescopic ends of the two fourth telescopic rods 42 are commonly fixedly connected to a cleaning plate 43, and the cleaning plate 43 slides with the adjacent push plate 3 The cleaning plate 43 is slidably connected to two slide bars 44 symmetrically distributed front and back, and springs are arranged between the two slide bars 44 and the adjacent cleaning plates 43. The back ends of the two slide bars 44 are fixedly connected to telescopic plates 45 slidably matched with the adjacent push plates 3. The telescopic plates 45 are used to increase the length of the cleaning plates 43 when the adjacent cleaning plates 43 move downward. The water storage tank 1 and the cleaning plate 43 are squeezed and matched with the adjacent telescopic plates 45, which are used to change with the curved surface of the water storage tank 1 and the adjacent push plates 3 is used for scraping, the push plate 3 is provided with two slide grooves symmetrically distributed front and back, the push plate 3 is slidably connected with two L-shaped plates 46 symmetrically distributed front and back, a spring is provided between the L-shaped plate 46 and the adjacent push plate 3, the L-shaped plate 46 is located in the adjacent slide groove of the adjacent upper push plate 3, the L-shaped plate 46 is composed of a cross bar and a vertical bar, the left side of the cross bar is provided with an inclined surface, and the inclined surface direction faces the lower side, so that when the cleaning plate 43 moves upward to reset, the cleaning plate 43 can squeeze the adjacent L-shaped plate 46 to the right, the cleaning plate 43 is provided with two symmetrically distributed holes, the L-shaped plate 46 and the adjacent The adjacent holes on the adjacent cleaning plates 43 are limited in cooperation, and are used for the L-shaped plate 46 to limit the adjacent cleaning plates 43 during the movement of the push plate 3, so as to prevent the cleaning plates 43 from moving downward into the oil when the oil is not completely extracted, resulting in poor scraping effect. The water storage tank 1 is fixed with a limiting block 47, and the limiting block 47 is squeezed and matched with the adjacent L-shaped plate 46, so as to release the limitation of the adjacent cleaning plates 43 by the L-shaped plate 46, so that the cleaning plates 43 move downward. Two collecting mechanisms symmetrically distributed on the left and right are arranged in the water storage tank 1, and the collecting mechanisms are used to collect impurities in the sewage.

[0039] like Figure 3 , Figure 10-12As shown, the orientations in this embodiment are all in accordance with the figure for example 3, the collecting mechanism includes two sliding tubes 51 symmetrically distributed front and back, the two sliding tubes 51 are fixedly connected to the right side of the water storage tank 1, the left sides of the two sliding tubes 51 are slidably connected with sliding rods 52, the sliding rods 52 are initially located in the adjacent sliding tubes 51, the right part of the sliding rod 52 is provided with a through hole, the right part of the sliding rod 52 is communicated with the adjacent sliding tube 51, and is used for the sliding tube 51 to extract the gas in the adjacent sliding rod 52 when the sliding rod 52 moves to the right, a spring is provided between the sliding tube 51 and the adjacent sliding rod 52, the spring is initially in a power storage state, the left side of the sliding rod 52 is fixedly connected and communicated with a limiting telescopic tube 53, and the telescopic end of the limiting telescopic tube 53 is initially in a retracted state The U-shaped plate is positioned to the left of the lifting rod 54, and the U-shaped plate is engaged with the adjacent lifting rod 54 when the telescopic end of the limiting telescopic tube 53 moves. The lower part of the lifting rod 54 is fixedly connected with a gathering shell 55, and the gathering shell 55 is slidably connected to the adjacent push plate 3. The left part of the upper side of the gathering shell 55 is provided with an inclined surface, and the inclined surface is directed downward, and is used to scrape off the impurities gathered on the right side of the push plate 3 when the gathering shell 55 moves downward. The push plate 3 is slidably connected with a limiting frame 56, and the cross-section of the limiting frame 56 is cross-shaped. A hole is provided in the middle of the left side surface of the lifting rod 54, and the right end of the limiting frame 56 is engaged with the upper side of the adjacent lifting rod 54. The hole limit cooperation is used for limiting the adjacent lifting rod 54 when the lifting rod 54 moves to the left, so that the gathering shell 55 is located above the through hole on the push plate 3, so as to prevent the gathering shell 55 from blocking the flow of sewage in the water storage tank 1. The limiting frame 56 is squeezed and matched with the adjacent sliding rod 52, and is used for releasing the limiting of the adjacent lifting rod 54 by the limiting frame 56 after the limiting frame 56 contacts the adjacent sliding rod 52, so that the gathering shell 55 moves downward. A spring is provided between the limiting frame 56 and the adjacent push plate 3, and the spring is initially in a compressed state. A hole is provided in the middle of the adjusting frame 31, and the limiting frame 56 is limited and matched with the hole on the adjacent adjusting frame 31, so as to limit the adjacent adjusting frame 31 from moving upward when sewage is added into the water storage tank 1. To prevent the adjustment frame 31 from releasing the seal on the adjacent push plate 3 when the sewage is not completely stratified, causing part of the oil to flow with the water into the left and right chambers of the water tank 1, a water pump 57 is arranged at the lower part of the right side of the push plate 3, and the water pump 57 is used to circulate the sewage in the water tank 1, so that the solid impurities in the sewage after the oil is separated are gathered in the left and right chambers of the water tank 1, a collecting shell 58 is arranged at the lower part of the water tank 1, and an electric baffle is arranged in the collecting shell 58, and the electric baffle initially seals the adjacent collecting shell 58 to prevent sewage from entering the collecting shell 58, and the collecting shell 58 is used to collect impurities in the water tank 1, and the gathering shell 55 is initially located in the adjacent collecting shell 58, and the collecting shell 58 and the gathering shell 55 are adjusted according to actual conditions.

[0040] The direction of movement of the parts in this embodiment refers to the direction of movement of the parts on the right. When the staff uses this device to treat petroleum wastewater, the staff feeds the wastewater into the water tank 1 from the feed port. As the liquid level of the wastewater in the water tank 1 rises, when the liquid level of the petroleum in the wastewater contacts the suspended block on the upper part of the adjusting frame 31, the suspended block on the upper end of the adjusting frame 31 is subjected to the upward buoyancy of the wastewater. At this time, the limit frame 56 limits the adjacent adjusting frame 31, so that the adjusting frame 31 cannot move upward. When the height of the wastewater reaches below the second float 13 and is about to contact the second float 13, the staff stops adding wastewater to the tank, seals the feed port and waits for the separation of the oil and water in the water tank 1. When the oil and water in the water tank 1 are layered, the staff connects the oil extraction pipe 4 to the oil pump and starts the two first push rods 2. The telescopic end of the first push rod 2 on the right drives the adjacent push plate 3 to move to the left, and the movement of the push plate 3 drives the parts thereon to move to the left.

[0041] In the process of the push plate 3 moving to the left, the push plate 3 drives the adjacent limiting frame 56 to move to the left, and the squeezing force of the limiting frame 56 on the adjacent sliding rod 52 is reduced. The sliding rod 52 moves to the left under the push of the adjacent spring and squeezes the gas in the left chamber of the adjacent sliding tube 51, so that the pressure in the left chamber of the sliding tube 51 increases, and the gas in the sliding tube 51 enters the adjacent sliding rod 52, and the gas in the sliding rod 52 enters the adjacent limiting telescopic tube 53, so that the telescopic end of the limiting telescopic tube 53 moves upward, and the limiting telescopic tube 53 drives the adjacent U-shaped plate to move upward, and the U-shaped plate squeezes the adjacent lifting rod 54 upward, so that the lifting rod 54 drives the adjacent gathering shell 55 to move upward. When the sliding rod 52 moves to the left end in the adjacent sliding tube 51, as shown in FIG. Fig.11As shown in the figure, the spring in the sliding tube 51 is reset, the sliding rod 52 no longer moves to the left, and the telescopic end of the limiting telescopic tube 53 no longer drives the adjacent gathering shell 55 to move upward. At this time, the hole on the lifting rod 54 is flush with the right end of the limiting frame 56, and the push plate 3 drives the limiting frame 56 to continue to move to the left. The limiting frame 56 moves to the right relative to the push plate 3 under the push of the adjacent spring, so that the limiting frame 56 enters the hole of the adjacent lifting rod 54, limits the adjacent lifting rod 54, and avoids the aggregation shell 55 in the subsequent process. The through hole on the adjacent push plate 3 is blocked. When the adjacent spring of the limit frame 56 is reset, the limit frame 56 no longer moves rightward relative to the adjacent push plate 3. The limit frame 56 is separated from the two adjacent sliding rods 52 and completes the limiting of the adjacent lifting rod 54. At this time, the left end of the limit frame 56 is separated from the hole on the adjacent adjustment frame 31 and no longer limits the adjacent adjustment frame 31. The adjustment frame 31 moves upward under the push of the sewage buoyancy, and the adjustment frame 31 drives the adjacent sealing plate 32 to move upward. When the adjustment frame 3 After the upper side surface of 1 contacts the upper side surface of the slide groove on the adjacent push plate 3, the adjusting frame 31 no longer moves upward, and the sealing plate 32 no longer moves upward. At this time, the axis of the through hole on the sealing plate 32 coincides with the axis of the adjacent through hole on the adjacent push plate 3, and the sewage in the middle chamber of the water storage tank 1 enters the chambers on its left and right sides through the through holes on the two push plates 3. At this time, the staff closes the two first push rods 2, and the two push plates 3 no longer move. Since the oil and water in the sewage have been stratified at this time, and the water has a large density and is located in the lower layer of the oil, part of the water on the lower side enters the left and right chambers of the water storage tank 1 through the through holes on the push plates 3, and the oil is still between the two push plates 3. When the sewage in the three chambers of the water storage tank 1 reaches equilibrium, that is, the liquid levels of the water in the three chambers are the same and no longer flow, the staff starts the two first push rods 2 again, and the two push plates 3 approach each other again. At this time, the liquid level of the water in the sewage in the water storage tank 1 no longer changes, and the liquid level of the oil in the water storage tank 1 increases as the two push plates 3 approach each other.

[0042] In the process of the two push plates 3 approaching each other, the staff starts the second push rod 21, and the telescopic end of the second push rod 21 drives the oil pumping pipe 4 to move downward, and the oil pumping pipe 4 drives the oil pushing plate 5, the adjusting shell 6 and the first telescopic rod 9 to move downward, and the oil pushing plate 5 drives the lifting frame 7 and the sealing shell 8 to move downward, and the telescopic end of the first telescopic rod 9 drives the first floating ball 10 to move downward. When the oil pumping pipe 4 moves downward, the oil pumping pipe 4 drives the telescopic end of the adjusting telescopic rod 22 to move downward through the support frame, so that the pressure in the lower chamber of the adjusting telescopic rod 22 increases, and the gas in the adjusting telescopic rod 22 is compressed and enters the upper chamber of the lifting pipe 11, pushing the telescopic end of the lifting pipe 11 to move downward, and the telescopic end of the lifting pipe 11 drives the adjacent second telescopic rod 12 to move downward, and the telescopic end of the second telescopic rod 12 drives the second floating ball 13 to move downward, so that the second floating ball 13 moves downward synchronously with the first floating ball 10.

[0043] During the downward movement of the above-mentioned pumping pipe 4, after the oil push plate 5 contacts the oil, the pumping pipe 4 continues to move downward. After the first float 10 contacts the upper side of the oil, the first float 10 no longer moves downward due to the buoyancy of the oil, and the pumping pipe 4 continues to move downward. The first float 10 and the telescopic end of the first telescopic rod 9 no longer move, so that the gas and spring in the first telescopic rod 9 are compressed, the pressure in the first telescopic rod 9 increases, and the gas in the first telescopic rod 9 enters the upper chamber in the regulating shell 6, so that the lifting frame 7 moves downward. The lifting frame 7 moves downward so that the protrusion on it squeezes the slide groove on the sealing shell 8, pushing the sealing shell 8 to rotate. When the protrusion on the lifting frame 7 moves to the lower end of the slide groove on the sealing shell 8, , the sealing shell 8 no longer rotates. At this time, the through hole on the sealing shell 8 is connected with the adjacent through hole on the oil pushing plate 5. The first float 10 no longer moves upward relative to the oil pumping pipe 4. After the lifting frame 7 no longer moves downward, the telescopic end of the first telescopic rod 9 cannot be further compressed. The first telescopic rod 9 drives the first float 10 to continue to move downward and enter the oil. At this time, the groove on the lifting frame 7 coincides with the limit rod 24. The limit rod 24 enters the groove on the lifting frame 7 driven by the adjacent tension spring, completing the limitation of the lifting frame 7, avoiding that after the subsequent oil level is lowered, the telescopic end of the first telescopic rod 9 moves downward, and the lifting frame 7 drives the sealing shell 8 to rotate, resulting in the oil pushing plate 5 being unable to extract oil, resulting in too much oil remaining in the sewage.

[0044] In the process of the above-mentioned oil pumping pipe 4 moving downward, the telescopic end of the lifting pipe 11 drives the second telescopic rod 12 to move downward. When the second floating ball 13 contacts water, the second floating ball 13 stops moving downward, and the telescopic end of the second telescopic rod 12 stops moving downward. The spring in the second telescopic rod 12 is compressed, and the gas in the second telescopic rod 12 enters the sealing ring 23, causing the sealing ring 23 to expand and seal the air outlet on the lower side of the lifting pipe 11. The gas in the lifting pipe 11 cannot be discharged, and the gas in the adjusting telescopic rod 22 cannot enter the lifting pipe 11. The telescopic end of the lifting pipe 11 cannot continue to move downward, and the second telescopic rod 12 stops moving downward, so that the second floating ball 13 stops moving, and the telescopic end of the adjusting telescopic rod 22 cannot move downward (in the process of the oil pumping pipe 4 moving downward, when the first floating ball 10 contacts oil, the first The spring in the telescopic rod 9 is compressed. During the compression of the spring in the first telescopic rod 9, if the second float 13 contacts the water surface, the spring in the first telescopic rod 9 stops being compressed and the second push rod 21 stops moving downward. If the spring in the first telescopic rod 9 is compressed to the limit position and the second float 13 does not contact the water surface, the first telescopic rod 9 drives the first float 10 to move downward and enter the oil until the second float 13 contacts the water surface, the second push rod 21 stops moving, and the first float 10 stops moving), so that the oil extraction pipe 4 no longer moves downward. The staff closes the second push rod 21 and starts the oil extraction pump to extract the oil in the sewage. At this time, the position of the second float 13 is the same as the position of the first float 10 when the telescopic end of the first telescopic rod 9 is not compressed (the height of the second float 13 is lower than the height of the first float 10).

[0045] In the above-mentioned process of extracting oil, the oil enters the sealing shell 8 from the through hole of the oil push plate 5, and the oil in the sealing shell 8 enters the oil extraction pipe 4. As the oil level decreases, when the oil level is lower than the first float 10, the first float 10 moves downward with the oil level under the push of the spring in the first telescopic rod 9, and the pressure in the first telescopic rod 9 decreases and gas is extracted from the regulating shell 6, so that the gas in the regulating shell 6 decreases. At this time, the limit rod 24 limits the lifting frame 7 so that it cannot move. When the first float 10 and the second float 13 are in After reaching the same position, the liquid level of the petroleum in the water storage tank 1 is close to the liquid level of the water, and the force of the negative pressure in the regulating shell 6 on the lifting frame 7 is greater than the extrusion force of the limit rod 24 on the lifting frame 7, so that the lifting frame 7 moves upward to reset and the grooves squeeze the four limit rods 24 outward, so that the limit rods 24 move and stretch the adjacent tension springs, and the lifting frame 7 moves to squeeze the slide groove on the sealing shell 8 to drive it to rotate, so that the through hole on the sealing shell 8 is misaligned with the through hole on the oil pushing plate 5, and the through hole on the oil pushing plate 5 is sealed again to avoid continuing to pump oil and pumping out water in the sewage.

[0046] After the above-mentioned staff closes the second push rod 21, the liquid level of the oil gradually decreases. As the push plate 3 moves to the left, when the upper end of the L-shaped plate 46 contacts the adjacent limit block 47, the L-shaped plate 46 no longer moves to the left, and the staff closes the two first push rods 2 to allow the oil extraction pipe 4 to extract the oil in the sewage. When the oil in the middle chamber of the water storage tank 1 is extracted, the staff starts the two first push rods 2 again, and the push plate 3 drives the other parts thereon to move to the left and compresses the adjacent springs of the L-shaped plate 46. When the right side surface of the L-shaped plate 46 contacts the right side surface of the adjacent chute on the adjacent push plate 3, the staff closes the two first push rods 2, and the push plate 3 no longer moves toward the middle. At this time, the L-shaped plate 46 is separated from the hole on the adjacent cleaning plate 43 and the limit on it is released. The telescopic ends of the two fourth telescopic rods 42 on the right are in the adjacent tension springs. The push of the adjacent spring drives the adjacent cleaning plate 43 to move downward and scrape off the oil adhered to the push plate 3, cleans the left side of the adjacent push plate 3 to avoid residual oil on the push plate 3 after use, and the movement of the cleaning plate 43 drives the two sliding bars 44 and the two telescopic plates 45 thereon to move downward. The telescopic plate 45 moves downward to reduce the squeezing force of the water storage tank 1 on it, and the sliding bar 44 drives the adjacent telescopic plate 45 to move and fit the inner side of the water storage tank 1 under the push of the adjacent spring, and simultaneously scrapes off the side of the push plate 3. When the telescopic end of the fourth telescopic rod 42 moves downward, the gas in the fourth telescopic rod 42 enters the adjacent third telescopic rod 41, pushing the telescopic end of the adjacent third telescopic rod 41 to move to the right. When the tension spring in the fourth telescopic rod 42 is reset, the cleaning plate 43 no longer moves downward, and the telescopic plate 45 no longer moves.

[0047] After the telescopic plate 45 stops moving, the staff starts the two first push rods 2, and the first push rods 2 drive the adjacent push plate 3 to move to the right and reset, and the push plate 3 drives the parts thereon to move to the right. When the limit frame 56 contacts the adjacent sliding rod 52, the staff closes the two first push rods 2. At this time, the upper end of the sliding rod 44 is located in the adjacent U-shaped plate. During the movement of the push plate 3, the squeezing force of the limit block 47 on the adjacent L-shaped plate 46 is reduced. The L-shaped plate 46 moves to the left and reset relative to the adjacent push plate 3 under the push of the adjacent spring. When the left side of the L-shaped plate 46 contacts the left side of the adjacent slide groove on the adjacent push plate 3, the L-shaped plate 46 completes its reset and no longer moves to the left relative to the adjacent push plate 3.

[0048] The staff adds flocculant into the water tank 1 and starts two water pumps 57. The water pump 57 extracts the sewage in the middle chamber of the water tank 1 and sends it to the adjacent chamber, so that the pressure in the adjacent chamber is increased. The sewage enters the middle chamber of the water tank 1 again from the through hole of the adjacent push plate 3 to complete the circulation, so that the remaining sewage in the water tank 1 is mixed. As flocs in the sewage are gradually formed, the flocs are intercepted when passing through the filter screen of the push plate 3 during the process of moving from the chambers on both sides of the water tank 1 to the middle chamber, so that the generated flocs remain in the left and right chambers of the water tank 1. When the sewage in the water tank 1 circulates for a period of time, there is no sewage in the middle chamber of the water tank 1. After there are flocs, the staff opens the discharge port of the water tank 1 and closes the two water pumps 57 to discharge the remaining sewage in the middle chamber of the water tank 1. In this process, as the sewage liquid level decreases, the buoyancy of the suspended block on the adjusting frame 31 decreases. Driven by its own gravity, it moves downward with the adjacent sealing plate 32 and seals the through holes on the push plate 3. The flocs in the chambers on the left and right sides of the water tank 1 are intercepted near the filter screen on the adjusting frame 31. After the remaining sewage in the middle chamber of the water tank 1 is discharged, the staff closes the discharge port of the water tank 1 and starts the two first push rods 2 to drive the adjacent push plates 3 to continue moving to both sides to reset.

[0049] In the process of the first push rod 2 driving the push plate 3 to reset, when the telescopic end of the third telescopic rod 41 contacts the water storage tank 1, the telescopic end of the third telescopic rod 41 no longer moves, and the push plate 3 continues to move to increase the pressure in the third telescopic rod 41, and the gas in the third telescopic rod 41 enters the adjacent fourth telescopic rod 42, pushing the telescopic end of the fourth telescopic rod 42 to move upward, stretching the adjacent tension spring and driving the adjacent cleaning plate 43 to move upward and reset, and the movement of the cleaning plate 43 drives the parts on it to move and reset. When the cleaning plate 43 contacts the adjacent L-shaped plate 46, the cleaning plate 43 squeezes the inclined surface on the adjacent L-shaped plate 46 to the right, causing the L-shaped plate 46 to move to the right and compress the adjacent spring. When the telescopic end of the third telescopic rod 41 cannot be compressed, the staff closes the two first push rods 2. At this time, the groove on the cleaning plate 43 is aligned with the lower end of the adjacent L-shaped plate 46. The L-shaped plate 46 moves to the left and resets under the push of the adjacent spring and limits the adjacent cleaning plate 43 again.

[0050] In the process of the push plate 3 moving to the right and resetting, the push plate 3 continues to drive the parts thereon to move and reset. Since the upper end of the slide rod 44 is located in the adjacent U-shaped plate, the slide rod 52 squeezes the adjacent limit frame 56 (the limit frame 56 moves relative to the push plate 3), so that the limit frame 56 compresses the adjacent spring and limits the adjacent adjustment frame 31 again. When the limit frame 56 cannot move relative to the push plate 3, the limit frame 56 squeezes the slide rod 52 to move to the right and compresses the adjacent spring, and reduces the pressure in the left chamber of the adjacent slide tube 51, and the pumping The gas in the adjacent limiting telescopic tube 53 is taken, so that the telescopic end of the limiting telescopic tube 53 drives the adjacent lifting rod 54 to move downward, so that the gathering shell 55 scrapes off the flocs attached to the push plate 3. When the gathering shell 55 contacts the baffle on the adjacent collecting shell 58, the staff opens the electronic baffle adjacent to the collecting shell 58, releases the adjacent collecting shell 58, and the gathering shell 55 moves downward into the adjacent collecting shell 58, and the impurities collected in the adjacent chamber of the water storage tank 1 and the residual sewage are sent to the adjacent collecting shell 58, thereby completing the collection of impurities in the sewage.

[0051] After the oil in the sewage is extracted, the second float 13 is separated from the separated sewage, and the telescopic end of the second telescopic rod 12 moves and resets under the push of the adjacent spring, so that the sealing ring 23 contracts to release the seal of the exhaust hole of the lifting pipe 11, and the staff starts the first push rod 2, and the first push rod 2 drives the oil extraction pipe 4 to move upward and reset, and the oil extraction pipe 4 drives the parts thereon to move and reset. At this time, the pressure in the chamber below the telescopic rod 22 is reduced, and gas is extracted from the lifting pipe 11, so that the second telescopic rod 12 moves upward and resets.

[0052] Afterwards, the staff injects sewage into the water storage tank 1 again and repeats the above process to continuously treat the sewage.

[0053] In the process of treating sewage with existing devices, the liquid levels of petroleum and water in the sewage will change with the ratio of oil to water in the sewage. The higher the oil content in the sewage and the smaller the amount of sewage introduced into the device, the lower the liquid level of the oil-water dividing line will be. When separating oil and water, the oil in the sewage will easily enter other chambers from the connecting holes, making it impossible to extract all the oil in the sewage.

[0054] Embodiment 2: Based on embodiment 1, Figure 13-Figure 15As shown, it also includes two adjustment mechanisms symmetrically distributed in front and back, the adjustment mechanism is arranged in the water storage tank 1, the adjustment mechanism is used to adjust the height of the liquid level, the adjustment mechanism includes an air bag 61, the air bag 61 is fixedly connected to the lower part of the water storage tank 1, the upper part of the air bag 61 is fixedly connected and connected to the ventilation pipe 62, the upper part of the ventilation pipe 62 is slidably connected to the floating rod 63, the upper part of the ventilation pipe 62 is connected to the air pump through a hose, the floating rod 63 is slidably connected to the adjustment rod 64, a spring is arranged between the adjustment rod 64 and the adjacent ventilation pipe 62, the lower ends of the floating rod 63 and the adjustment rod 64 are both provided with a circular plate, the circular plate is provided with evenly distributed through holes, the position of the through holes on the circular plate of the floating rod 63 is misaligned with the position of the through holes on the circular plate of the adjacent adjustment rod 64, so that the circular plate of the floating rod 63 fits with the circular plate of the adjacent adjustment rod 64 , sealing the adjacent vent pipe 62 so that gas cannot enter the adjacent air bag 61, the circular plate on the floating rod 63 is sealed with the circular plate on the adjacent adjusting rod 64, and the upper ends of the floating rod 63 and the adjusting rod 64 are both provided with suspension blocks, the density of the suspension block on the floating rod 63 is greater than the density of oil and less than the density of water, and the density of the suspension block on the adjusting rod 64 is less than the density of oil, a circular plate is provided in the vent pipe 62, and the circular plate is provided with evenly distributed through holes, the axis of the through holes on the circular plate coincides with the axis of the adjacent through holes on the adjacent floating rod 63, and the circular plate is sealed with the adjacent adjusting rod 64, which is used to seal the adjacent vent pipe 62 when the circular plate of the adjusting rod 64 fits with the circular plate in the adjacent vent pipe 62 during the upward movement of the adjusting rod 64, thereby preventing the air bag 61 from continuing to expand and causing the liquid level to continue to rise.

[0055] The directions of movement of the parts in this embodiment are all based on the parts on the front side as a reference.

[0056] 1. In the process of injecting sewage into the water storage tank 1, the staff connects the two ventilation pipes 62 with the air pump. As the sewage level rises, when the amount of sewage added is small, the oil level is always below the upper end of the regulating rod 64. The staff starts the air pump, and the air pump introduces gas into the ventilation pipe 62, so that the gas in the ventilation pipe 62 enters the adjacent air bag 61. The air bag 61 expands to raise the sewage level in the water storage tank 1. The oil and water levels in the sewage rise synchronously. When the water level contacts the suspended block of the floating rod 63, the floating rod 63 moves upward under the action of the buoyancy of the sewage. Move, when the lower end of the floating rod 63 contacts the lower end of the adjacent adjusting rod 64, the through hole at the lower end of the adjusting rod 64 and the through hole at the lower end of the adjacent floating rod 63 are sealed with each other. At this time, the liquid level where the oil and water meet in the sewage in the water storage tank 1 is higher than the height of the through hole on the push plate 3, and the air pump cannot continue to introduce gas into the airbag 61. The staff turns off the air pump and repeats the above process to treat the sewage. After the treated sewage is discharged, the buoyancy of the floating rod 63 is reduced, and the floating rod 63 moves downward to reset and separate from the adjacent adjusting rod 64, thereby releasing the seal on the adjacent ventilation pipe 62, and the airbag 61 releases the gas to reset.

[0057] 2. After adding oil into the water storage tank 1, if the oil content in the sewage is high, the oil-water interface is located at the lower side of the suspension block on the floating rod 63. The staff starts the air pump to expand the airbag 61, the sewage level rises, the oil level in the sewage rises, the oil drives the adjustment rod 64 to move upward and compress the adjacent spring. When the adjustment rod 64 contacts the circular plate on the adjacent vent pipe 62, the adjustment rod 64 and the adjacent circular plate complete the sealing of the adjacent vent pipe 62, the airbag 61 no longer expands, the sewage level no longer rises, and the sewage is discharged. The liquid level of the oil in the water is located below the cleaning plate 43, which prevents the height of the oil in the sewage from rising to above the cleaning plate 43, resulting in the cleaning plate 43 being unable to scrape off the oil adsorbed on the adjacent push plate 3. The staff turns off the air pump and repeats the above process to extract the oil. When the liquid level of the sewage drops, the adjusting rod 64 moves downward and resets under the push of the adjacent spring, and then repeats the above process to introduce gas into the airbag 61 to make it expand again. When the oil in the sewage is extracted, the airbag 61 repeats the above process to release gas and reset.

[0058] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A continuous sewage treatment device, comprising a water storage tank (1), the water storage tank (1) being fixedly connected to a symmetrically distributed first push rod (2), the telescopic end of the first push rod (2) being fixedly connected to a push plate (3) slidably connected to the water storage tank (1), the push plate (3) being provided with evenly distributed through holes, a filter screen being provided in the through holes, an oil extraction pipe (4) being fixedly connected to the upper part of the water storage tank (1), an oil pushing plate (5) being fixedly connected to the lower side of the oil extraction pipe (4), the oil pushing plate (5) being provided with evenly distributed through holes, and an adjusting shell (6) being fixedly connected to the lower part of the oil extraction pipe (4) The adjusting shell (6) is slidably connected to a lifting frame (7), the oil pushing plate (5) is rotatably connected to a sealing shell (8) that is limitedly slidably matched with the lifting frame (7), the sealing shell (8) is provided with evenly distributed through holes, the sealing shell (8) is sealedly matched with the oil pushing plate (5), the oil pumping pipe (4) is fixedly connected to a first telescopic rod (9) through a support frame, the first telescopic rod (9) is connected to the adjusting shell (6), a spring is arranged inside the first telescopic rod (9), and a first floating ball (10) is fixedly connected to the telescopic end of the first telescopic rod (9), characterized in that: It also includes a lifting tube (11), the lifting tube (11) being fixedly connected to a side of any of the push plates (3) away from the oil pumping pipe (4), the telescopic end of the lifting tube (11) being fixedly connected to a second telescopic rod (12), a spring being arranged inside the second telescopic rod (12), and the telescopic end of the second telescopic rod (12) being fixedly connected to a second floating ball (13), and a lifting assembly being arranged on the upper part of the water storage tank (1), the lifting assembly being used to adjust the height of the oil push plate (5); The density of the first float (10) and the second float (13) are both less than the density of oil; The lifting assembly comprises a second push rod (21), the second push rod (21) being fixedly connected to the upper part of the water storage tank (1), the telescopic end of the second push rod (21) being fixedly connected to the support frame of the oil pumping pipe (4), an adjustable telescopic rod (22) being fixedly connected to the side of the water storage tank (1) close to the second push rod (21), the telescopic end of the adjustable telescopic rod (22) being fixedly connected to the support frame of the oil pumping pipe (4), the side of the adjustable telescopic rod (22) close to the first telescopic rod (9) being connected to the side of the lifting pipe (11) away from the second telescopic rod (12), the lifting pipe (11) A sealing ring (23) is fixedly connected, a vent hole is provided on one side of the lifting tube (11) close to the second telescopic rod (12), the sealing ring (23) is in sealing cooperation with the vent hole on the lifting tube (11), the sealing ring (23) is communicated with the second telescopic rod (12), the adjustment shell (6) is slidably connected with a limit rod (24), a tension spring is provided between the limit rod (24) and the adjustment shell (6), the limit rod (24) is in limiting cooperation with the lifting frame (7), a sealing assembly is provided on the push plate (3), the sealing assembly is used to seal the through hole on the adjacent push plate (3); The height of the second floating ball (13) is lower than the height of the first floating ball (10), and the distance between the two is the distance moved by the telescopic end of the lifting tube (11); The sealing assembly comprises an adjusting frame (31), the push plate (3) is provided with a slide groove, the adjusting frame (31) is slidably connected in the slide groove of the push plate (3), one end of the adjusting frame (31) away from the oil pumping pipe (4) is fixedly connected with a sealing plate (32), the sealing plate (32) is provided with evenly distributed through holes, the sealing plate (32) is sealingly matched with the through holes on the adjacent push plate (3), and a cleaning mechanism is provided on the upper part of the push plate (3), the cleaning mechanism is used to clean impurities adhered to the adjacent push plate (3).

2. A continuous sewage treatment device according to claim 1, characterized in that: The cleaning mechanism comprises a symmetrically distributed third telescopic rod (41), the third telescopic rod (41) being fixedly connected to the upper part of the adjacent push plate (3), the telescopic end of the third telescopic rod (41) being pressed and matched with the water storage tank (1), the third telescopic rod (41) being fixedly connected and connected to a fourth telescopic rod (42), a tension spring being arranged in the fourth telescopic rod (42), the telescopic ends of the symmetrically distributed fourth telescopic rods (42) being fixedly connected to a cleaning plate (43), the cleaning plate (43) being slidably matched with the adjacent push plate (3), the cleaning plate (43) being slidably connected to a symmetrically distributed sliding rod (44), a spring being arranged between the sliding rod (44) and the adjacent cleaning plate (43), The back ends of the symmetrically distributed sliding rods (44) are fixedly connected with telescopic plates (45) that are slidably matched with the adjacent push plates (3); the water storage tank (1) and the adjacent cleaning plates (43) are both pressed and matched with the telescopic plates (45); the push plates (3) are slidably connected with an L-shaped plate (46); a spring is provided between the L-shaped plate (46) and the adjacent push plates (3); the L-shaped plate (46) is limitedly matched with the adjacent cleaning plates (43); the water storage tank (1) is fixedly connected with a limiting block (47); the limiting block (47) is pressed and matched with the adjacent L-shaped plate (46); and a symmetrically distributed collecting mechanism is provided in the water storage tank (1); the collecting mechanism is used to collect impurities in sewage.

3. A continuous sewage treatment device according to claim 2, characterized in that: The L-shaped plate (46) is composed of a horizontal bar and a vertical bar, and a side of the horizontal bar close to the adjacent cleaning plate (43) is provided with an inclined surface, and the inclined surface is directed downward.

4. A continuous sewage treatment device according to claim 2, characterized in that: The collecting mechanism comprises symmetrically distributed sliding tubes (51), the symmetrically distributed sliding tubes (51) are all fixedly connected to the side of the water storage tank (1) close to the adjacent first push rod (2), the side of the sliding tube (51) close to the adjacent push plate (3) is slidably connected to a sliding rod (52), the sliding rod (52) is communicated with the adjacent sliding tube (51), a spring is provided between the sliding tube (51) and the adjacent sliding rod (52), the side of the sliding rod (52) close to the adjacent push plate (3) is fixedly connected to and communicated with a limited telescopic tube (53), the side of the push plate (3) close to the adjacent sliding tube (51) is slidably connected to a lifting rod (54), the telescopic end of the limited telescopic tube (53) is connected to the adjacent lifting rod (54) The lower part of the lifting rod (54) is fixedly connected with a gathering shell (55), the gathering shell (55) is slidably connected with the adjacent push plate (3), the push plate (3) is slidably connected with a limiting frame (56) which is limitedly matched with the adjacent lifting rod (54), the limiting frame (56) is squeezed and matched with the adjacent sliding rod (52), a spring is provided between the limiting frame (56) and the adjacent push plate (3), the limiting frame (56) is limitedly matched with the adjacent adjustment frame (31), a water pump (57) is provided on the side of the push plate (3) close to the adjacent lifting rod (54), a gathering shell (58) is provided on the lower part of the water storage tank (1) close to the adjacent sliding tube (51), and an electric baffle is provided in the gathering shell (58).

5. A continuous sewage treatment device according to claim 4, characterized in that: A U-shaped plate is fixedly connected to the telescopic end of the position-limiting telescopic tube (53), the U-shaped plate is position-limitedly matched with the adjacent lifting rod (54), and the opening of the U-shaped plate faces one side of the adjacent push plate (3).

6. A continuous sewage treatment device according to claim 4, characterized in that: The water storage tank (1) also includes a symmetrically distributed regulating mechanism, the regulating mechanism being arranged in the water storage tank (1) and being used to regulate the height of the liquid level, the regulating mechanism including an air bag (61), the air bag (61) being fixedly connected in the water storage tank (1), the air bag (61) being fixedly connected to and in communication with a vent pipe (62), the upper part of the vent pipe (62) being slidably connected to a floating rod (63), the floating rod (63) being slidably connected to an regulating rod (64), the regulating rod (64) being slidably connected to the adjacent vent pipe (62) A spring is arranged between the floating rod (63) and the adjusting rod (64), the lower ends of the floating rod (63) and the adjusting rod (64) are both provided with evenly distributed through holes, the floating rod (63) and the adjacent adjusting rod (64) are sealed together, the upper ends of the floating rod (63) and the adjusting rod (64) are both provided with suspension blocks, a circular plate is arranged in the vent pipe (62), the circular plate is provided with evenly distributed through holes, the axis of the through holes on the circular plate coincides with the axis of the adjacent through holes on the adjacent floating rod (63), and the circular plate and the adjacent adjusting rod (64) are sealed together.

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