Desulfurization wastewater sludge treatment system

Abstract

This invention belongs to the field of sludge treatment technology and discloses a desulfurization wastewater sludge treatment system, including a base; a clarification component; an isolation component; a pyrolysis component; a crushing component; a storage component; and a filtration component. Oil and water accumulate from bottom to top within the cylindrical shell. Water gradually moves towards the bottom layer of the liquid, while oil moves downwards. Oil and water continuously pass between the lower coarse and fine filter elements for double filtration, ultimately achieving a state where oil is on top and water is at the bottom of the liquid surface. The top barrier mesh is composed of multiple corrugated metal plates stacked longitudinally, forming multiple corrugated, bent channels. Water experiences upward resistance here, and the smooth metal plates prevent water droplets from adhering, preventing water from rising rapidly to the surface and being squeezed out accidentally. This solves the problem of existing sludge dewatering machines that only operate once, extracting only the water from the sludge without further filtering and distinguishing impurities in the wastewater.

Description

Technical Field

[0001] This invention belongs to the field of sludge treatment technology, specifically a desulfurization wastewater sludge treatment system. Background Technology

[0002] Desulfurization refers to the process of removing sulfur from fuel before combustion and removing sulfur from flue gas before emission. After desulfurization is completed, sludge and wastewater will be formed as residues. The main components of desulfurization sludge include ash, gypsum, chloride ions and heavy metals.

[0003] These substances work together to block the channels for free water between gypsum crystals, which in turn distorts the gypsum lattice, generating more crystal nuclei. This results in desulfurization sludge having a high water content, high viscosity, and large volume. Existing sludge dewatering machines only circulate the sludge once through the clarification tank and dewatering devices such as screw presses and belt dewatering machines, and only extract the water from the sludge without further filtering and separating impurities in the wastewater. This leads to poor treatment results. Furthermore, the dewatered sludge tends to clump together. During the feeding and transportation process, the irregularly shaped solid blocks are unstable on the conveyor belt, which may cause the sludge to fall off the conveyor belt. Summary of the Invention

[0004] The purpose of this invention is to provide a desulfurization wastewater sludge treatment system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a desulfurization wastewater sludge treatment system, including a base, the base including a platform, a track fixedly installed on the left side of the platform, a clarification component fixedly installed on the top right side of the platform, and a linkage wastewater sludge treatment mechanism, which includes an isolation component, the isolation component fixedly installed inside the clarification component, a pyrolysis component fixedly installed on the left side of the clarification component, a crushing component fixedly installed on the left side of the pyrolysis component, and a storage component fixedly installed on the front side of the pyrolysis component;

[0006] A filter assembly includes a circular shell, a collection dish fixedly connected to the bottom of the circular shell, the collection dish fixedly installed on the top of a tabletop, a support fixedly installed on the top of the collection dish, multiple coarse filter elements fixedly installed on the top of the support, fine filter elements fixedly connected to the top of each of the multiple coarse filter elements, and a barrier mesh fixedly installed at the bottom of the multiple fine filter elements. The barrier mesh is formed by stacking multiple corrugated metal plates longitudinally.

[0007] Preferably, the clarification component includes a housing, which is fixedly installed on the top of the table. A first hydraulic rod is fixedly connected to the right side of the inside of the housing. A push plate is fixedly connected to the telescopic end of the first hydraulic rod. A water pump is fixedly installed on the right side of the housing. A first connecting pipe is fixedly connected to the front of the water pump. A suction pipe is fixedly connected to the top of the water pump.

[0008] Preferably, the push plate is movably installed inside the housing at an inclined angle, and the first connecting pipe is fixedly connected to the side of the circular shell.

[0009] Preferably, the isolation assembly includes a frame, which is fixedly installed inside the housing. Multiple rotating plates are movably hinged to the inner side of the frame. Connecting bars are movably hinged to the right rotation shafts of the multiple rotating plates. Tracks are movably hinged to the bottom of the multiple connecting bars. A second hydraulic rod is fixedly connected to the right end of the track.

[0010] Preferably, the pyrolysis assembly includes a first motor, which is fixedly mounted on the right side of the housing. The output shaft of the first motor is connected to a helical rod, which penetrates the interior of the housing. A heating shell is sleeved on the right outer edge of the middle part of the helical rod. Three collecting tubes are fixedly connected to the top of the heating shell, and a second connecting tube is connected to the top of the three collecting tubes. The second connecting tube is fixedly connected to the side of the circular shell.

[0011] Preferably, the crushing assembly includes multiple support rods, which are fixedly installed on both sides of the track. A hopper is fixedly installed on the top of the multiple support rods. Two cutter rollers are rotatably installed inside the hopper. A first gear is fixedly connected to the left side of the two cutter rollers. A second gear meshes with the middle of the two first gears. A second motor is fixedly connected to the left side of the second gear.

[0012] Preferably, the storage assembly includes an oil storage tank, which is fixedly installed on the top of the platform. A third connecting pipe is fixedly connected to the top of the oil storage tank and is fixedly connected to the top of the cylindrical shell. A water storage tank is fixedly installed on the front side of the oil storage tank, and a square tube is fixedly connected to the back of the water storage tank. The square tube is fixedly connected to the front side of the collecting dish.

[0013] The beneficial effects of this invention are as follows:

[0014] 1. This invention, through the installation of a newly designed filter assembly, allows oil and water to accumulate from bottom to top within the circular shell. Water gradually moves towards the bottom layer of the liquid, while oil moves downwards. Oil and water continuously interweave between the lower coarse and fine filter elements for double filtration, ultimately achieving a state where oil is on top and water is at the bottom of the liquid surface. The top barrier mesh is composed of multiple corrugated metal plates stacked longitudinally, forming multiple corrugated bends. Water experiences upward resistance here, and the smooth metal plates make it difficult for water droplets to adhere, preventing water from rising rapidly to the surface and being squeezed out accidentally. This solves the problem of existing sludge dewatering machines that only operate once, extracting only the water from the sludge without further filtering and distinguishing impurities in the wastewater.

[0015] 2. This invention, by installing a separating component and increasing the stroke of the connecting strip, pushes the track to the left, allowing the connecting strip hinged in the track to rotate at a certain angle. This causes multiple rotating plates to rotate clockwise and close within the frame, separating sludge and heavier materials in the lower layer formed by the separating component and the shell, while wastewater is isolated in the upper layer of the separating component. This achieves a separated clarification tank, and when the wastewater in the upper layer is extracted, the impurities will not be reabsorbed due to the flow of water.

[0016] 3. This invention, by installing a crushing device, drives the second gear to rotate by starting the second motor, which in turn causes the first gears on both sides to rotate in opposite directions, driving the two cutter rollers in the hopper to rotate symmetrically, thus crushing and loosening the solidified sludge. The crushed sludge falls onto the track and is transported by the track. This solves the problem that after the sludge is dewatered, it will clump together. During the feeding and transportation process, the irregular lumps of solid material are unstable when transported on the track, which may cause them to fall off. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a top view of the overall structure of the present invention;

[0019] Figure 3 This is a cross-sectional view of the clarification component structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the isolation component structure of the present invention;

[0021] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 6 This is a schematic diagram of the pyrolysis component structure of the present invention;

[0023] Figure 7This is a schematic diagram of the crushing component structure of the present invention;

[0024] Figure 8 This is a cross-sectional view of the filter component structure of the present invention;

[0025] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the structure at point B;

[0026] Figure 10 This is a schematic diagram of the support structure of the present invention.

[0027] In the diagram: 1. Base; 2. Clarification assembly; 3. Isolation assembly; 4. Pyrolysis assembly; 5. Crushing assembly; 6. Filtering assembly; 7. Storage assembly; 11. Platform; 12. Track; 21. Housing; 22. First hydraulic rod; 23. Push plate; 24. Water pump; 25. First connecting pipe; 26. Suction pipe; 31. Frame; 32. Rotating vane; 33. Connecting bar; 34. Track; 35. Second hydraulic rod; 41. ... 42. Motor; 43. Screw rod; 44. Heating shell; 45. Collection pipe; 46. Second connecting pipe; 57. Support rod; 58. Hopper; 59. Cutting roller; 50. First gear; 51. Second gear; 52. Second motor; 63. Round shell; 64. Collection dish; 65. Support; 66. Coarse filter element; 67. Fine filter element; 78. Barrier mesh; 79. Oil storage tank; 70. Third connecting pipe; 71. Water storage tank; 72. Square tube. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1 to 10 As shown, this embodiment of the invention provides a desulfurization wastewater sludge treatment system, including a base 1, the base 1 including a platform 11, a track 12 fixedly installed on the left side of the platform 11, a clarification component 2 fixedly installed on the top right side of the platform 11, and also including a linkage wastewater sludge treatment mechanism, which includes an isolation component 3, the isolation component 3 fixedly installed inside the clarification component 2, a pyrolysis component 4 fixedly installed on the left side of the clarification component 2, a crushing component 5 fixedly installed on the left side of the pyrolysis component 4, and a storage component 7 fixedly installed on the front side of the pyrolysis component 4;

[0030] The filter assembly 6 includes a circular shell 61, a collection dish 62 fixedly connected to the bottom of the circular shell 61, the collection dish 62 fixedly installed on the top of the tabletop 11, a support 63 fixedly installed on the top of the collection dish 62, multiple coarse filter elements 64 fixedly installed on the top of the support 63, fine filter elements 65 fixedly connected to the top of each of the multiple coarse filter elements 64, and a barrier net 66 fixedly installed at the bottom of the multiple fine filter elements 65. The barrier net 66 is formed by multiple corrugated metal plates stacked longitudinally.

[0031] Oil and water accumulate from bottom to top within the cavity formed by the cylindrical shell 61 and the collecting dish 62 due to gravity. Water, with a higher specific heat capacity than oil, gradually moves towards the bottom layer, while oil, with a lower specific heat capacity, rises from the top. The oil and water continuously pass between the lower coarse filter element 64 and the fine filter element 65 for double filtration, ultimately achieving a state where oil is on top and water is at the bottom. Oil enters the water storage tank 73 through the third connecting pipe 72 at the top of the collecting dish 62, while water enters the water storage tank 73 through the square pipe 74. Inside, the workflow ends here. The top barrier net 66 is made of multiple corrugated metal plates stacked longitudinally, forming multiple corrugated bends. Water will be resisted from rising here, and the smooth metal plates make it difficult for water droplets to adhere, preventing water from rising rapidly on the liquid surface and being squeezed here and accidentally discharged. This solves the problem of existing sludge dewatering machines, which only use clarification tanks and sludge dewatering devices such as screw presses and belt dewatering machines, only work once, and only extract water from the sludge, without further filtering and distinguishing impurities in the wastewater.

[0032] The clarification component 2 includes a housing 21, which is fixedly installed on the top of the platform 11. A first hydraulic rod 22 is fixedly connected to the right side of the inside of the housing 21. A push plate 23 is fixedly connected to the telescopic end of the first hydraulic rod 22. A water pump 24 is fixedly installed on the right side of the housing 21. A first connecting pipe 25 is fixedly connected to the front of the water pump 24. A suction pipe 26 is fixedly connected to the top of the water pump 24. The push plate 23 is movably installed in the housing 21 at an inclined angle. The first connecting pipe 25 is fixedly connected to the side of the circular shell 61.

[0033] The mixture of wastewater and sludge is poured into the clarification component 2. The heavier impurities in the sludge and wastewater can gradually sink to the bottom in the shell 21 due to gravity, increasing the stroke of the first hydraulic rod 22, which can drive the push plate 23 to push towards the pyrolysis component 4 in the shell 21. At this time, the sludge can come into contact with the spiral rod 42.

[0034] The isolation component 3 includes a frame 31, which is fixedly installed inside the housing 21. Multiple rotating plates 32 are movably hinged to the inner side of the frame 31. Connecting bars 33 are movably hinged to the right rotation shafts of the multiple rotating plates 32. Rails 34 are movably hinged to the bottom of the multiple connecting bars 33. A second hydraulic rod 35 is fixedly connected to the right end of the rails 34.

[0035] The connecting bar 33 increases the stroke, thereby pushing the track 34 to move to the left, and allowing the connecting bar 33 hinged in the track 34 to rotate at a certain angle, thereby driving multiple rotating plates 32 to rotate clockwise and close within the frame 31, separating sludge and heavier materials in the lower layer formed by the isolation component 3 and the shell 21, while the wastewater is isolated in the upper layer of the isolation component 3, thus achieving a separated clarification tank. When the wastewater in the upper layer is extracted, the impurities will not be reabsorbed due to the flow of water.

[0036] The pyrolysis assembly 4 includes a first motor 41, which is fixedly installed on the right side of the housing 21. The output shaft of the first motor 41 is connected to a spiral rod 42, which penetrates the interior of the housing 21. A heating shell 43 is sleeved on the right outer edge of the middle part of the spiral rod 42. Three collecting pipes 44 are fixedly connected to the top of the heating shell 43. A second connecting pipe 45 is connected to the top of the three collecting pipes 44. The second connecting pipe 45 is fixedly connected to the side of the circular shell 61.

[0037] By starting the first motor 41, the screw rod 42 is driven to rotate clockwise, transporting all the sludge in the lower layer of the shell 21 to the heating shell 43. At this time, the heating shell 43 is heated, and the water and oily substances containing heavy metals in the sludge are evaporated upward together. After being collected by the three collection pipes 44, the sludge enters the filter assembly 6 through the second connecting pipe 45, while the solidified sludge is further transported by the screw rod 42 to the crushing assembly 5.

[0038] The crushing component 5 includes multiple support rods 51, which are fixedly installed on both sides of the track 12. A hopper 52 is fixedly installed on the top of the multiple support rods 51. Two cutter rollers 53 are rotatably installed inside the hopper 52. A first gear 54 is fixedly connected to the left side of the two cutter rollers 53. A second gear 55 meshes with the middle of the two first gears 54. A second motor 56 is fixedly connected to the left side of the second gear 55.

[0039] By starting the second motor 56, the second gear 55 is driven to rotate, and the first gears 54 on both sides rotate in opposite directions, which drives the two cutter rollers 53 in the hopper 52 to rotate symmetrically, breaking and loosening the solidified sludge. The broken soil falls onto the track 12 and is transported by the track 12. This solves the problem that the sludge will clump after dewatering. During the feeding and transportation process, the irregular blocky solids are transported on the track, and their center of gravity is unstable, which may cause them to fall off.

[0040] The storage component 7 includes an oil storage tank 71, which is fixedly installed on the top of the platform 11. A third connecting pipe 72 is fixedly connected to the top of the oil storage tank 71 and is fixedly connected to the top of the round shell 61. A water storage tank 73 is fixedly installed on the front side of the oil storage tank 71 and a square tube 74 is fixedly connected to the back of the water storage tank 73. The square tube 74 is fixedly connected to the front side of the collection dish 62.

[0041] Oil enters the water storage tank 73 through the third connecting pipe 72 at the top of the collecting dish 62 for storage, while water enters the water storage tank 73 through the square pipe 74 for storage.

[0042] Working principle: When using this invention to dewater wastewater and sludge, firstly, the mixture of wastewater and sludge is poured into the clarification component 2. The heavier impurities in the sludge and wastewater gradually sink to the bottom in the shell 21 due to gravity. At this time, the isolation component 3 is activated, and the connecting bar 33 increases its stroke, thereby pushing the track 34 to move to the left and allowing the connecting bar 33, which is hinged in the track 34, to rotate at a certain angle. This causes multiple rotating plates 32 to rotate clockwise and close in the frame 31, separating the sludge and heavier substances in the lower layer formed by the isolation component 3 and the shell 21, while the wastewater is isolated in the upper layer of the isolation component 3. Then, the wastewater is drawn through the suction pipe 26 and pumped by the water pump 24, and enters the filter component 6 through the first connecting pipe 25. The separated clarification tank will not reabsorb impurities due to the flow of water when the wastewater in the upper layer is drawn.

[0043] At this time, the first hydraulic rod 22 increases its stroke, driving the push plate 23 to push towards the pyrolysis component 4 inside the housing 21. At this time, all the sludge is in contact with the screw rod 42. The first motor 41 is started, driving the screw rod 42 to rotate clockwise, transporting all the sludge in the lower layer of the housing 21 to the heating shell 43. At this time, the heating shell 43 is heated, and the water and oily substances containing heavy metals in the sludge are evaporated upward together. After being collected by the three collection pipes 44, they enter the filter component 6 through the second connecting pipe 45, while the solidified sludge is continued to be transported to the crushing component 5 by the screw rod 42.

[0044] When the solidified sludge enters the hopper 52, the second motor 56 is started to drive the second gear 55 to rotate, and then the first gears 54 on both sides rotate in opposite directions, driving the two cutter rollers 53 in the hopper 52 to rotate symmetrically, breaking and loosening the solidified sludge. The broken soil falls onto the track 12 and is transported by the track 12.

[0045] Wastewater pumped by pump 24 and water and heavy metal-containing oil collected by pyrolysis assembly 4 are transported to filter assembly 6. The oil and water accumulate from bottom to top in the cavity formed by the cylindrical shell 61 and the collecting dish 62 due to gravity. Water, with a higher specific heat capacity than oil, gradually moves to the bottom of the liquid, while oil, with a lower specific heat capacity, moves upward. The oil and water continuously pass between the coarse filter element 64 and the fine filter element 65 in the lower layer for double filtration, ultimately achieving a state where the oil is on top and the water is on the bottom of the liquid surface. The oil enters the water storage tank 73 through the third connecting pipe 72 at the top of the collecting dish 62, while the water enters the water storage tank 73 through the square pipe 74. The process ends here. The top barrier net 66 is made of multiple corrugated metal plates stacked longitudinally, forming multiple corrugated bends to prevent water from being squeezed to this point and then discharged into the oil storage tank 71 when the liquid surface rises rapidly. The process ends here.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A desulfurization wastewater sludge treatment system, comprising a base (1), characterized in that: The base (1) includes a platform (11), a track (12) is fixedly installed on the left side of the platform (11), a clarification component (2) is fixedly installed on the top right side of the platform (11), and also includes a linkage wastewater sludge treatment mechanism, which includes an isolation component (3), the isolation component (3) is fixedly installed inside the clarification component (2), a pyrolysis component (4) is fixedly installed on the left side of the clarification component (2), a crushing component (5) is fixedly installed on the left side of the pyrolysis component (4), and a storage component (7) is fixedly installed on the front side of the pyrolysis component (4); a filtration component ( 6) The filter assembly (6) includes a round shell (61), a collection dish (62) is fixedly connected to the bottom of the round shell (61), the collection dish (62) is fixedly installed on the top of the table (11), a bracket (63) is fixedly installed on the top of the collection dish (62), a plurality of coarse filter elements (64) are fixedly installed on the top of the bracket (63), a fine filter element (65) is fixedly connected to the top of each of the plurality of coarse filter elements (64), and a barrier mesh (66) is fixedly installed at the bottom of the plurality of fine filter elements (65). The barrier mesh (66) is formed by stacking a plurality of corrugated metal plates longitudinally. The clarification component (2) includes a housing (21), which is fixedly installed on the top of the table (11). A first hydraulic rod (22) is fixedly connected to the right side of the inside of the housing (21). A push plate (23) is fixedly connected to the telescopic end of the first hydraulic rod (22). A water pump (24) is fixedly installed on the right side of the housing (21). A first connecting pipe (25) is fixedly connected to the front side of the water pump (24). A suction pipe (26) is fixedly connected to the top of the water pump (24). The push plate (23) is installed in the housing (21) at an inclined angle, and the first connecting pipe (25) is fixedly connected to the side of the round shell (61); The isolation component (3) includes a frame (31), which is fixedly installed inside the housing (21). Multiple rotating plates (32) are movably hinged to the inner side of the frame (31). Connecting bars (33) are movably hinged to the right rotation shafts of the multiple rotating plates (32). Rails (34) are movably hinged to the bottom of the multiple connecting bars (33). A second hydraulic rod (35) is fixedly connected to the right end of the rails (34). The pyrolysis assembly (4) includes a first motor (41), which is fixedly installed on the right side of the housing (21). The output shaft of the first motor (41) is connected to a screw rod (42), which penetrates the interior of the housing (21). A heating shell (43) is sleeved on the right outer edge of the middle part of the screw rod (42). Three collecting pipes (44) are fixedly connected to the top of the heating shell (43). A second connecting pipe (45) is connected to the top of the three collecting pipes (44). The second connecting pipe (45) is fixedly connected to the side of the round shell (61). The crushing assembly (5) includes multiple support rods (51), which are fixedly installed on both sides of the track (12). A hopper (52) is fixedly installed on the top of the multiple support rods (51). Two cutter rollers (53) are rotatably installed inside the hopper (52). A first gear (54) is fixedly connected to the left side of the two cutter rollers (53). A second gear (55) meshes with the middle of the two first gears (54). A second motor (56) is fixedly connected to the left side of the second gear (55). The storage assembly (7) includes an oil storage tank (71), which is fixedly installed on the top of the platform (11). A third connecting pipe (72) is fixedly connected to the top of the oil storage tank (71). The third connecting pipe (72) is fixedly connected to the top of the round shell (61). A water storage tank (73) is fixedly installed on the front side of the oil storage tank (71). A square tube (74) is fixedly connected to the back of the water storage tank (73). The square tube (74) is fixedly connected to the front side of the collecting dish (62). When dewatering wastewater and sludge, firstly, the mixture of wastewater and sludge is poured into the clarification component (2). The sludge and heavier impurities in the wastewater gradually sink to the bottom in the shell (21) due to gravity. At this time, the isolation component (3) is activated, the connecting bar (33) increases its stroke, thereby pushing the track (34) to move to the left, and the connecting bar (33) hinged in the track (34) can rotate at a certain angle, thereby driving multiple rotating plates (32) to rotate clockwise and close in the frame (31), separating the sludge and heavier substances in the lower layer formed by the isolation component (3) and the shell (21), while the wastewater is isolated in the upper layer of the isolation component (3). At this time, it is then drawn through the suction pipe (26) and pumped by the water pump (24), and enters the filter component (6) from the first connecting pipe (25). The separated clarification tank will not reabsorb impurities due to the flow of water when the upper layer of wastewater is drawn. At this time, the first hydraulic rod (22) increases its stroke, driving the push plate (23) to push the pyrolysis component (4) in the shell (21). At this time, all the sludge is in contact with the screw rod (42). The first motor (41) is started, driving the screw rod (42) to rotate clockwise, transporting all the sludge in the lower layer of the shell (21) to the heating shell (43). At this time, the heating shell (43) is heated, and the water and heavy metal oil in the sludge are evaporated upward together. After being collected by the three collection pipes (44), it enters the filter component (6) through the second connecting pipe (45), while the solidified sludge is continued to be transported to the crushing component (5) by the screw rod (42). When the solidified sludge enters the hopper (52), the second motor (56) is started to drive the second gear (55) to rotate, and then the first gears (54) on both sides rotate in opposite directions, which drives the two cutter rollers (53) in the hopper (52) to rotate symmetrically, crushing and loosening the solidified sludge. The crushed soil falls onto the track (12) and is transported by the track (12). Wastewater pumped by the water pump (24) and water and heavy metal-containing oil collected by the pyrolysis unit (4) are transported to the filter unit (6). This oil and water accumulate from bottom to top within the cavity formed by the cylindrical shell (61) and the collecting dish (62) due to gravity. Water, with a higher specific heat capacity than oil, gradually moves towards the bottom layer, while oil, with a lower specific heat capacity, moves upwards. The oil and water continuously pass between the lower coarse filter element (64) and fine filter element (65) for double filtration. Finally, the entire liquid surface is achieved with oil on top and water at the bottom. The oil enters the water storage tank (73) through the third connecting pipe (72) at the top of the collection dish (62), while the water enters the water storage tank (73) through the square pipe (74). The process ends here. The top barrier net (66) is made of multiple corrugated metal plates stacked vertically to form multiple corrugated bends, which can prevent the water from being squeezed here and then discharged into the oil storage tank (71) when the liquid surface rises rapidly. The process ends here.

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