Pretreatment equipment combining ozone and ultrasonic waves

Abstract

The utility model relates to pretreatment equipment combining ozone and ultrasonic waves, and relates to the field of leachate treatment equipment. The device comprises an oxidation tank and a tank cover fixed at a port of the oxidation tank, a filter box for filtering liquid entering the oxidation tank is mounted on the tank cover, a plurality of ultrasonic vibration plates are fixed on the inner side wall of the oxidation tank, and a stirring mechanism capable of rotating and stirring is arranged on the inner side of the oxidation tank. The ozone generator generates ozone, the ozone is conveyed to the transmission rod under the conveying of the air pump, and is uniformly dispersed and discharged outwards through the dispersion holes in the stirring rod, at the moment, the stirring rod is driven by the rotation of the transmission rod to stir the leachate, and meanwhile, the ozone discharged from the dispersion holes is more uniformly dispersed in the leachate; and meanwhile, the leachate on the lower side is pumped away through the liquid pump and the return pipe and is sent back to the upper end part in the oxidation tank again through the shunting box, so that the leachate in the oxidation tank flows downwards, ozone is more fully mixed in the leachate, and the treatment of the leachate is greatly improved.

Description

Technical Field

[0001] This application relates to the field of leachate treatment equipment technology, and in particular to a pretreatment device that combines ozone and ultrasound. Background Technology

[0002] Leachate, which is usually generated in places such as landfills, contains a large amount of organic matter, heavy metals and other harmful substances, posing a serious threat to the environment and ecology. Therefore, treatment equipment is needed to treat leachate and reduce its pollution to the environment.

[0003] Chinese patent CN209940719U discloses a landfill leachate oxidation treatment device, including a support frame and a motor. A decolorizing tank is fixedly mounted on the support frame, and a sepiolite filter screen is fixedly installed inside the decolorizing tank. The bottom of the decolorizing tank is connected to an oxidation tank via a pipe. A cover is provided on the top of the oxidation tank, and a stirring paddle is rotatably connected to the cover via a sealed bearing. A microporous aeration pipe is installed inside the oxidation tank, with one end of the microporous aeration pipe penetrating one side of the oxidation tank and connected to an air inlet pipe. One end of the air inlet pipe is connected to an ozone generator. An ultrasonic vibrating plate is fixedly mounted inside the oxidation tank via a connecting rod. This utility model, through this landfill leachate oxidation treatment device, can decolorize landfill leachate and collect the products generated after oxidation treatment to avoid environmental harm after discharge, while also improving the efficiency of leachate oxidation treatment.

[0004] The aforementioned landfill leachate oxidation treatment device uses ultrasound and ozone to treat harmful substances and pathogens in the leachate. It disperses ozone into the oxidation tank through a microporous aeration pipe at the bottom of the oxidation tank and uses a stirring paddle to agitate the leachate so that the ozone is evenly mixed in the leachate. However, when the ozone is sent into the oxidation tank through the microporous aeration pipe, the ozone is relatively concentrated, which does not make it easier to evenly disperse ozone in the leachate. Utility Model Content

[0005] To address the issue that ozone is concentrated and not evenly dispersed in the leachate when ozone is introduced into the oxidation tank using microporous aeration pipes in the aforementioned landfill leachate oxidation treatment device, this application provides a pretreatment device that combines ozone with ultrasound.

[0006] The pretreatment device combining ozone and ultrasound provided in this application adopts the following technical solution:

[0007] A pretreatment device combining ozone and ultrasound includes an oxidation tank and a tank cover fixed to the port of the oxidation tank. A filter box for filtering the incoming liquid is installed on the tank cover. Multiple ultrasonic transducers are fixed to the inner side wall of the oxidation tank, and a rotating stirring mechanism is provided inside the oxidation tank. The stirring mechanism includes a hollow transmission rod, with multiple hollow stirring rods fixed to its side. Multiple dispersion holes are opened on the outer side of the stirring rods. The upper end of the transmission rod passes through the tank cover and is rotatably fitted with a connecting box, and the right end of the connecting box is connected to a pipe. An air pump is connected to the oxidation tank, and the air inlet of the air pump is connected to an ozone generator through a pipe. An ultrasonic generator connected to multiple ultrasonic transducers is installed on the left side of the oxidation tank. A drain pipe is fixed at the lower end of the oxidation tank, and a valve is installed near the lower end of the drain pipe. A distribution box is fixed on the outer side of the oxidation tank near the upper end, and the distribution box evenly distributes the liquid into the inner side of the oxidation tank. A return pipe is fixedly connected to one side of the drain pipe above the valve, and one end of the return pipe is connected to a liquid pump. The outlet of the liquid pump is connected to the distribution box through a pipe.

[0008] By adopting the above technical solution, ozone is generated by an ozone generator and delivered to the transmission rod by an air pump. The ozone is then evenly dispersed and discharged outward through the dispersion holes on the stirring rod. At this time, the rotation of the transmission rod drives the stirring rod to stir the leachate, making the ozone discharged from the dispersion holes more evenly dispersed in the leachate. Simultaneously, the leachate at the bottom is pumped away by a liquid pump and a return pipe and sent back to the upper part of the oxidation tank through a diversion box. This causes the leachate in the oxidation tank to flow downward, making the ozone more thoroughly mixed in the leachate, thereby greatly improving the treatment of leachate.

[0009] Optionally, slots are provided on both the left and right sides of the upper port of the oxidation tank, and multiple insertion ports are provided on the outer side of the oxidation tank near the upper end. Lock holes are provided on both the left and right sides of the oxidation tank near the slots.

[0010] By adopting the above technical solution, the oxidation tank uses a slot for positioning and locking the tank cover during installation, and an opening for engaging with the liquid return flow of the distribution box.

[0011] Optionally, a rotating gear is fixedly mounted on one end of the transmission rod that passes through the tank cover. A stirring motor fixed on the tank cover is provided on one side of the rotating gear, and a drive gear that meshes with the rotating gear is fixed on the output shaft of the stirring motor.

[0012] By adopting the above technical solution, the stirring motor drives the rotating gear to rotate through the drive gear, and the rotating gear drives the transmission rod to rotate, thereby driving the stirring rod to stir the liquid.

[0013] Optionally, the distribution box is configured as an annular shape, and multiple distribution pipes are fixed inside the distribution box, with the distribution pipes inserted inside the oxidation tank.

[0014] By adopting the above technical solution, the diversion box uses multiple diversion pipes to uniformly send the returned liquid back to the inside of the oxidation tank from different directions.

[0015] Optionally, the bottom of the filter box has evenly distributed through holes, and the inside of the filter box is provided with filter cotton. Baffles are fixed on both the left and right sides of the filter box, and a cover is fitted on the top of the filter box. An inlet pipe and a handle are fixed on the top of the cover.

[0016] By adopting the above technical solution, the filter box allows the liquid to flow downward through the through holes, and the filter cotton filters the impurities in the liquid, thereby achieving the preliminary treatment of the leachate.

[0017] Optionally, a sleeve hole is provided on the lower surface of the socket box near the left end, and a sealing sleeve is fixed inside the sleeve hole. A fixing bracket is fixed on the lower surface of the socket box near the right end.

[0018] By adopting the above technical solution, the socket box is sealed to the transmission rod through a sealing sleeve, thereby achieving air supply to the transmission rod while realizing a rotatable connection with the transmission rod.

[0019] Optionally, an annular groove is provided on the outer side of the sealing sleeve, and multiple retaining rings are fixed on the inner side of the sealing sleeve.

[0020] By adopting the above technical solution, the sealing sleeve is fixedly installed in the sleeve hole on the sleeve box using an annular groove, and a sealing connection is made between the retaining ring and the transmission rod.

[0021] Optionally, the can lid has an installation opening on the top, and a locking platform is fixed on the bottom side of the can lid. Locking blocks are fixed on both the left and right sides of the can lid, and locking plates are fixed on opposite sides of the two locking blocks. Locking screws are threaded onto the locking plates.

[0022] By adopting the above technical solution, the can lid is clamped to the upper port of the oxidation tank using a clamping platform, positioned and clamped using a clamping block, and finally locked onto the oxidation tank by the locking screws on the locking plate, thereby achieving the fixed installation of the can lid.

[0023] In summary, this application has the following beneficial technical effects:

[0024] Ozone is generated by an ozone generator and delivered to the drive rod by an air pump. It is then evenly dispersed and discharged outward through the dispersion holes on the stirring rod. At this time, the rotation of the drive rod drives the stirring rod to stir the leachate, making the ozone discharged from the dispersion holes more evenly dispersed in the leachate. Meanwhile, the leachate at the bottom is pumped away by a liquid pump and a return pipe and sent back to the upper part of the oxidation tank through a diversion box. This causes the leachate in the oxidation tank to flow downward, making the ozone more thoroughly mixed in the leachate, thus greatly improving the treatment of leachate. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure in the embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the oxidation tank in the embodiments of this application.

[0027] Figure 3 This is a schematic diagram of the stirring mechanism in the embodiments of this application;

[0028] Figure 4 This is a schematic diagram of the shunt box in an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the filter box in an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the socket box in the embodiments of this application;

[0031] Figure 7 This is a schematic diagram of the sealing sleeve in an embodiment of this application;

[0032] Figure 8 This is a schematic diagram of the can lid in an embodiment of this application.

[0033] Explanation of reference numerals in the attached diagram: 1. Ultrasonic generator; 2. Oxidation tank; 21. Slot; 22. Insert; 23. Lock hole; 3. Diverter box; 31. Diverter pipe; 4. Filter box; 41. Inlet pipe; 42. Handle; 43. Cover; 44. Filter cotton; 45. Baffle; 5. Stirring mechanism; 51. Stirring motor; 52. Drive gear; 53. Rotating gear; 54. Transmission rod; 55. Stirring rod; 56. Dispersion hole; 6. Connecting box; 61. Sealing sleeve; 611. Annular groove; 612. Snap ring; 62. Fixing bracket; 7. Air pump; 8. Tank cover; 81. Mounting port; 82. Locking platform; 83. Locking block; 84. Locking plate; 85. Locking screw; 9. Ozone generator; 10. Liquid pump; 11. Return pipe; 12. Drain pipe; 13. Valve; 14. Ultrasonic vibrating plate. Detailed Implementation

[0034] The present application is further described in detail below with reference to the accompanying drawings.

[0035] This application discloses a pretreatment device combining ozone and ultrasound. (Refer to...) Figure 1 , Figure 2 and Figure 3 The oxidation tank includes an oxidation tank 2 and a tank cover 8 fixed to the port of the oxidation tank 2. A filter box 4 is installed on the tank cover 8 to filter the incoming liquid. A stirring mechanism 5 is provided inside the oxidation tank 2, which can rotate and stir. The stirring mechanism 5 includes a hollow transmission rod 54. Multiple hollow stirring rods 55 are fixed to the side of the transmission rod 54, and multiple dispersion holes 56 are opened on the outer side of the stirring rods 55. The upper end of the transmission rod 54 passes through the tank cover 8 and is rotatably sleeved with a connecting box 6. The right end of the connecting box 6 is connected to an air pump 7 through a pipe, and the air inlet of the air pump 7 is connected to an ozone generator 9 through a pipe. A drain pipe 12 is fixed to the lower end of the oxidation tank 2, and a valve 13 is installed near the lower end of the drain pipe 12. A diversion box 3 is fixed to the outer side of the oxidation tank 2 near the upper end, and the diversion box 3 evenly disperses the liquid into the inner part of the oxidation tank 2. On one side of the drain pipe 12, above the valve 13, a return pipe 11 is fixedly connected, and one end of the return pipe 11 is connected to a liquid pump 10. The outlet of the liquid pump 10 is connected to the diversion box 3 through a pipe. Ozone is generated by the ozone generator 9 and sent to the transmission rod 54 by the air pump 7. It is then evenly dispersed outward through the dispersion hole 56 on the stirring rod 55. At this time, the rotation of the transmission rod 54 drives the stirring rod 55 to stir the leachate, making the ozone discharged from the dispersion hole 56 more evenly dispersed in the leachate. At the same time, the liquid pump 10 and the return pipe 11 draw away the leachate on the lower side and send it back to the upper end of the oxidation tank 2 through the diversion box 3, so that the leachate in the oxidation tank 2 flows downward, making the ozone more fully mixed in the leachate, thereby greatly improving the treatment of leachate.

[0036] Reference Figure 1 Multiple ultrasonic transducers 14 are fixed on the inner side wall of the oxidation tank 2. An ultrasonic generator 1 connected to the multiple ultrasonic transducers 14 is provided on the left side of the oxidation tank 2. The ultrasonic generator 1 emits ultrasonic waves into the oxidation tank 2 through the ultrasonic transducers 14. The ultrasonic waves can generate local high temperature and high pressure through cavitation, which promotes the decomposition of organic matter and precipitation of heavy metal ions in the leachate.

[0037] Reference Figure 2 The oxidation tank 2 has slots 21 on both the left and right sides of the upper port. The slots 21 are used to position and lock the tank cover 8 during installation. The outer side of the oxidation tank 2 has multiple insertion ports 22 near the upper end. The insertion ports 22 are used to cooperate with the liquid return of the diversion box 3. The left and right sides of the oxidation tank 2 have locking holes 23 near the slots 21. The locking holes 23 are used to lock and fix the tank with the locking screws 85.

[0038] Reference Figure 3 A rotating gear 53 is fixedly mounted on one end of the transmission rod 54 that passes through the can cover 8. A stirring motor 51 is fixed on one side of the rotating gear 53 and fixed on the can cover 8. A drive gear 52 that meshes with the rotating gear 53 is fixed on the output shaft of the stirring motor 51. The stirring motor 51 drives the rotating gear 53 to rotate through the drive gear 52. The rotating gear 53 then drives the transmission rod 54 to rotate, thereby driving the stirring rod 55 to stir the liquid.

[0039] Reference Figure 4 The distribution box 3 is designed in a circular shape so that the distribution pipes 31 are distributed in a circular shape around the oxidation tank 2. Multiple distribution pipes 31 are fixed inside the distribution box 3. The distribution pipes 31 are inserted inside the oxidation tank 2. The distribution box 3 uses multiple distribution pipes 31 to evenly send the refluxed liquid back to the inside of the oxidation tank 2 from different directions.

[0040] Reference Figure 5 The bottom of the filter box 4 has evenly distributed through holes, and the inside of the filter box 4 is provided with filter cotton 44. The filter box 4 allows the liquid to flow downward through the through holes, and the filter cotton 44 filters the impurities in the liquid, thereby achieving preliminary treatment of the leachate. Baffles 45 are fixed on both the left and right sides of the filter box 4. The baffles 45 are used to limit and block the filter box 4 during installation. The upper end of the filter box 4 is fitted with a cover 43, which is fitted onto the filter box 4 to seal it. The upper end of the cover 43 is fixed with an inlet pipe 41 and a handle 42. The inlet pipe 41 is used to add leachate into the filter box 4, and the handle 42 is used to facilitate the opening and closing of the cover 43.

[0041] Reference Figure 6 The lower surface of the socket box 6 has a sleeve hole near the left end, and a sealing sleeve 61 is fixed inside the sleeve hole. The socket box 6 is sealed to the transmission rod 54 through the sealing sleeve 61, so as to realize the air supply to the transmission rod 54 and the rotational connection between the socket box 6 and the transmission rod 54. The lower surface of the socket box 6 has a fixing bracket 62 near the right end, and the socket box 6 is fixed to the can cover 8 through the fixing bracket 62.

[0042] Reference Figure 7 The outer side of the sealing sleeve 61 is provided with an annular groove 611, and the inner side of the sealing sleeve 61 is fixed with multiple retaining rings 612. The sealing sleeve 61 is fixedly installed in the sleeve hole on the sleeve box 6 by means of the annular groove 611, and the retaining rings 612 are used to form a sealing sleeve connection with the transmission rod 54.

[0043] Reference Figure 8The lid 8 has an installation port 81 on its top for installing the filter box 4. The lid 8 has a locking platform 82 fixed on its lower side. The lid 8 has locking blocks 83 fixed on both sides. The locking plates 84 are fixed on opposite sides of the two locking blocks 83. The locking plates 84 are threaded with locking screws 85. The lid 8 is clamped to the upper port of the oxidation tank 2 by the locking platform 82 and positioned by the locking blocks 83. Finally, the lid 8 is locked to the oxidation tank 2 by the locking screws 85 on the locking plates 84, thus achieving the fixed installation of the lid 8.

[0044] The implementation principle of the ozone and ultrasonic combined pretreatment device in this application embodiment is as follows: When treating leachate, it is sent into the filter box 4 through the inlet pipe 41. At this time, the filter cotton 44 in the filter box 4 filters the impurities in the leachate. The filtered leachate enters the inner side of the oxidation tank 2. At this time, the stirring motor 51 drives the rotating gear 53 to rotate through the drive gear 52. The rotating gear 53 drives the transmission rod 54 to rotate, thereby driving the stirring rod 55 to stir the liquid. While stirring the leachate, ozone is generated by the ozone generator 9 and sent to the transmission rod 54 by the air pump 7. Ozone is then distributed by the distribution on the stirring rod 55. The ozone discharged from the diffuser 56 is evenly dispersed outwards. The stirring rod 55 stirs the leachate, making the ozone discharged from the diffuser 56 more evenly dispersed in the leachate. At the same time, the leachate on the lower side is pumped away by the liquid pump 10 and the return pipe 11 and evenly sent back to the oxidation tank 2 through the diversion box 3, so as to further mix the ozone in the leachate. Finally, the ultrasonic generator 1 is started and ultrasonic waves are generated through the ultrasonic vibrating plate 14 and transmitted to the leachate. The ultrasonic waves generate local high temperature and high pressure through cavitation, which promotes the decomposition of organic matter and precipitation of heavy metal ions in the leachate, and accelerates the oxidation of organic matter and heavy metal ions by ozone, thereby completing the treatment of leachate.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pretreatment device combining ozone and ultrasound, comprising an oxidation tank (2) and a tank cover (8) fixed to the port of the oxidation tank (2), characterized in that: A filter box (4) for filtering the incoming liquid is installed on the tank cover (8). Multiple ultrasonic vibrating plates (14) are fixed on the inner side wall of the oxidation tank (2). A stirring mechanism (5) capable of rotational stirring is provided on the inner side of the oxidation tank (2). The stirring mechanism (5) includes a hollow transmission rod (54). Multiple hollow stirring rods (55) are fixed on the side of the transmission rod (54). Multiple dispersion holes (56) are opened on the outer side of the stirring rods (55). The upper end of the transmission rod (54) passes through the tank cover (8) and is rotatably sleeved with a connecting box (6). The right end of the connecting box (6) is connected to an air pump (7) through a pipe. The air inlet of the air pump (7) is connected to a... An ozone generator (9) is provided on the left side of the oxidation tank (2) and is connected to multiple ultrasonic transducers (14). A drain pipe (12) is fixed at the lower end of the oxidation tank (2), and a valve (13) is installed near the lower end of the drain pipe (12). A diversion box (3) is fixed near the upper end of the outer side of the oxidation tank (2), and the diversion box (3) evenly disperses the liquid into the inner side of the oxidation tank (2). A return pipe (11) is fixedly connected to one side of the drain pipe (12) above the valve (13), and a liquid pump (10) is connected to one end of the return pipe (11). The outlet end of the liquid pump (10) is connected to the diversion box (3) through a pipe.

2. The pretreatment equipment combining ozone and ultrasound according to claim 1, characterized in that: The oxidation tank (2) has slots (21) on both the left and right sides of the upper port, and multiple insertion ports (22) are provided on the outer side of the oxidation tank (2) near the upper end. Lock holes (23) are provided on both the left and right sides of the oxidation tank (2) near the slots (21).

3. The pretreatment device combining ozone and ultrasound according to claim 2, characterized in that: The transmission rod (54) has a rotating gear (53) fixedly mounted on one end of the can cover (8). A stirring motor (51) fixed on the can cover (8) is provided on one side of the rotating gear (53), and a drive gear (52) that meshes with the rotating gear (53) is fixed on the output shaft of the stirring motor (51).

4. The pretreatment device combining ozone and ultrasound according to claim 3, characterized in that: The flow divider box (3) is set in a circular shape, and multiple flow divider pipes (31) are fixed on the inner side of the flow divider box (3). The flow divider pipes (31) are inserted into the inner side of the oxidation tank (2).

5. The pretreatment device combining ozone and ultrasound according to claim 4, characterized in that: The bottom of the filter box (4) is provided with evenly arranged through holes, and the inner side of the filter box (4) is provided with filter cotton (44). The left and right sides of the filter box (4) are fixed with baffles (45), and the upper end of the filter box (4) is fitted with a cover (43). The upper end of the cover (43) is fixed with an inlet pipe (41) and a handle (42).

6. The pretreatment device combining ozone and ultrasound according to claim 5, characterized in that: The lower surface of the socket box (6) is provided with a sleeve hole near the left end, and a sealing sleeve (61) is fixed inside the sleeve hole. A fixing bracket (62) is fixed near the right end of the lower surface of the socket box (6).

7. The pretreatment device combining ozone and ultrasound according to claim 6, characterized in that: The outer side of the sealing sleeve (61) is provided with an annular groove (611), and the inner side of the sealing sleeve (61) is fixed with multiple retaining rings (612).

8. The pretreatment device combining ozone and ultrasound according to claim 7, characterized in that: The can lid (8) has an installation opening (81) on its top, and a mounting plate (82) is fixed on the lower side of the can lid (8). The can lid (8) has mounting blocks (83) on both the left and right sides, and locking plates (84) are fixed on opposite sides of the two mounting blocks (83). Locking screws (85) are threaded on the locking plates (84).

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