A deep oxidation filtration mechanism for landfill leachate

Abstract

This utility model discloses a deep oxidation filtration mechanism for landfill leachate, relating to the field of landfill leachate treatment technology. It includes a mounting base, a pretreatment mechanism mounted on the top of one side of the mounting base, and an oxidation mechanism at one end of the pretreatment mechanism. The oxidation mechanism includes an outer shell. In this utility model, ozone gas is delivered to the interior of a fixed sleeve, where it reacts with the liquid. A first motor drives a rotating shaft to rotate, causing a fixed disc and outer spiral blades to rotate accordingly. The outer spiral blades are spiral-shaped, generating a combined axial and radial flow of the fluid. Simultaneously, a connecting rod rotates outside the connecting rod. The fixed blades and connecting rod are fixedly connected. When the fluid is pushed by the fixed disc, it changes direction upon encountering the fixed blades, forming more vortices, thereby improving the mixing effect of the fluid inside the fixed sleeve.

Description

Technical Field

[0001] This utility model relates to the field of landfill leachate treatment technology, and in particular to a deep oxidation filtration mechanism for landfill leachate. Background Technology

[0002] Landfill leachate refers to a high-concentration organic wastewater formed from the moisture contained in the landfill itself, rainwater and snowmelt entering the landfill, and other moisture, after deducting the saturated water holding capacity of the landfill and the soil covering layer, and passing through the landfill and soil covering layer. It also includes water seeping from accumulated landfill waste prepared for incineration. Landfill leachate needs to be treated by oxidation filtration.

[0003] For example, CN220149378U discloses an anaerobic ammonia oxidation treatment device for landfill leachate, which includes an anaerobic tank, an anoxic tank, and an aerobic tank. The anaerobic tank is located on one side of the anoxic tank, and the anoxic tank is located on one side of the aerobic tank. An inlet pipe is provided on the outer surface of one side of the anaerobic tank. A first connecting valve pipe is provided between the anaerobic tank and the anoxic tank. A second connecting valve pipe is provided between the anoxic tank and the aerobic tank. An outlet pipe is provided on the outer surface of one side of the aerobic tank.

[0004] In existing technologies, oxidation often employs single radial flow stirring or direct bubble aeration. This results in a single fluid flow pattern, which easily leads to laminar flow and mixing dead zones. Consequently, the leachate does not come into sufficient contact with ozone, resulting in incomplete oxidation and local concentration gradients. This not only affects the oxidation effect of the leachate but also wastes ozone gas. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology that the oxidation process using a single radial flow stirring easily forms laminar flow, resulting in local concentration gradients and affecting the oxidation effect of landfill leachate. Therefore, this invention proposes a deep oxidation filtration mechanism for landfill leachate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a deep oxidation filtration mechanism for landfill leachate, comprising a mounting base, a pretreatment mechanism mounted on the top of one side of the mounting base, an oxidation mechanism provided at one end of the pretreatment mechanism, the oxidation mechanism comprising an outer shell, a support frame fixedly connected to the outer side of the outer shell, one end of the support frame fixedly connected to the top side of the mounting base, a fixed sleeve fixedly connected inside the support frame, a cavity provided between the outer shell and the fixed sleeve, a first motor fixedly connected to one side of the outer shell, the output end of the first motor passing through one side of the outer shell and a rotating shaft fixedly connected to one side of the outer shell, a connecting rod rotatably connected to one end of the rotating shaft, one end of the connecting rod fixedly connected to the other end of the fixed sleeve, a sleeve rod rotatably connected to the outside of the connecting rod, an outer spiral blade fixedly connected to the end of the sleeve rod, a fixed disk fixedly connected to one end of the outer spiral blade, and the middle part of the fixed disk fixedly connected to the outside of the rotating shaft.

[0007] Preferably, a fixing blade is fixedly connected to the outside of the connecting rod, and the fixing blade is spaced apart from the sleeve rod on the outside of the connecting rod.

[0008] Preferably, a feed hopper is fixedly connected to the other end of the outer shell.

[0009] Preferably, a first connecting pipe is fixedly connected to the bottom side of the outer casing, one end of the first connecting pipe is fixedly connected to the pump body, the bottom side of the pump body is fixedly connected to one side of the support frame, and the other end of the pump body is fixedly connected to a second connecting pipe, one end of the second connecting pipe is fixedly connected to a filter.

[0010] Preferably, the pretreatment mechanism includes a filter box, a discharge cylinder is fixedly connected to the bottom side of the filter box, the filter box is fixedly connected to the top of the mounting base, a second motor is fixedly connected to one side of the filter box, a rotating rod is fixedly connected to the output end of the second motor through the filter box, a scraper is fixedly connected to the outside of the rotating rod, and the other end of the rotating rod passes through the side of the filter box.

[0011] Preferably, a filter plate is fixedly connected inside the filter box, and a limiting tooth is fixedly connected above the filter plate.

[0012] Preferably, a cleaning roller is rotatably connected inside the filter box, and a guide funnel is fixedly connected to the other side of the filter box. The guide funnel is located below the cleaning roller. One end of the cleaning roller passes through one side of the filter box, and a belt assembly is installed between one end of the cleaning roller and the rotating rod.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, ozone gas is delivered to the inside of the fixed sleeve. The ozone gas reacts with the liquid. The first motor drives the rotating shaft to rotate, and the fixed disk and the outer spiral blades rotate accordingly. The outer spiral blades are set in a spiral shape, so that the fluid generates a composite axial and radial flow. The fixed blades and the connecting rod are fixedly set. When the fluid is pushed by the fixed disk, it will change direction when it encounters the fixed blades, forming more vortices, thereby improving the mixing effect of the fluid inside the fixed sleeve.

[0015] 2. In this utility model, particulate impurities inside the leachate are filtered by a filter plate. The filtered particulate impurities are distributed within the intervals of the limiting teeth. The second motor drives the rotating rod to rotate, and the scraper rotates accordingly, scraping up the particulate impurities inside the limiting teeth and sending them to the cleaning roller. The cleaning roller rotates and rolls the particulate impurities scraped up by the scraper to the top of the guide funnel and then sends them out. The filtered particulate impurities are uniformly treated to prevent them from accumulating on the filter plate and causing blockage. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a landfill leachate deep oxidation filtration mechanism is provided for this utility model;

[0017] Figure 2 This utility model provides a schematic diagram of the internal cross-sectional structure of the oxidation mechanism of a landfill leachate deep oxidation filtration mechanism.

[0018] Figure 3 This utility model provides a schematic diagram of the rotating shaft connection structure of a deep oxidation filtration mechanism for landfill leachate;

[0019] Figure 4 This utility model provides a schematic diagram of the internal cross-sectional structure of the pretreatment mechanism of a deep oxidation filtration system for landfill leachate.

[0020] Legend: 1. Mounting base; 2. Filter; 3. Oxidation mechanism; 31. Outer shell; 32. Fixing sleeve; 33. Feed hopper; 34. Outer spiral blade; 35. Support frame; 36. First connecting pipe; 37. Pump body; 38. Second connecting pipe; 39. First motor; 310. Connecting rod; 311. Sleeve rod; 312. Fixing blade; 313. Rotating shaft; 314. Fixing disc; 4. Pretreatment mechanism; 41. Filter box; 42. Second motor; 43. Discharge cylinder; 44. Filter plate; 45. Cleaning roller; 46. Guide funnel; 47. Belt assembly; 48. Scraper; 49. Limiting tooth; 410. Rotating rod. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figures 1-4 As shown, this utility model provides a deep oxidation filtration mechanism for landfill leachate, including a mounting base 1. A pretreatment mechanism 4 is mounted on the top of one side of the mounting base 1. An oxidation mechanism 3 is provided at one end of the pretreatment mechanism 4. The oxidation mechanism 3 includes an outer shell 31. A support frame 35 is fixedly connected to the outer side of the outer shell 31. One end of the support frame 35 is fixedly connected to the top side of the mounting base 1. A fixing sleeve 32 is fixedly connected inside the support frame 35. A cavity is provided between the outer shell 31 and the fixing sleeve 32. A first motor 39 is fixedly connected to one side of the outer shell 31. The output end of the first motor 39 passes through one side of the outer shell 31 and a rotating shaft 313 is fixedly connected to one side of the outer shell 31. A connecting rod 310 is rotatably connected to one end of the rotating shaft 313. One end of the connecting rod 310 is connected to the other end of the fixing sleeve 32. The connecting rod 310 is fixedly connected to the outside of the connecting rod 310, and a sleeve rod 311 is rotatably connected to the outside of the sleeve rod 311. An outer spiral blade 34 is fixedly connected to the end of the outer spiral blade 34. A fixed disk 314 is fixedly connected to one end of the outer spiral blade 34. The middle part of the fixed disk 314 is fixedly connected to the outside of the rotating shaft 313. A fixed blade 312 is fixedly connected to the outside of the connecting rod 310. The fixed blade 312 and the sleeve rod 311 are spaced apart outside the connecting rod 310. A feed hopper 33 is fixedly connected to the other end of the outer shell 31. A first connecting pipe 36 is fixedly connected to the bottom side of the outer shell 31. A pump body 37 is fixedly connected to one end of the first connecting pipe 36. The bottom side of the pump body 37 is fixedly connected to one side of the support frame 35. A second connecting pipe 38 is fixedly connected to the other end of the pump body 37. A filter 2 is fixedly connected to one end of the second connecting pipe 38.

[0024] After pretreatment, the leachate is fed into the fixed sleeve 32 through the feed hopper 33. Ozone gas is delivered into the fixed sleeve 32, where it reacts with the liquid. The first motor 39 drives the rotating shaft 313 to rotate, causing the fixed disk 314 and the outer spiral blade 34 to rotate as well. The outer spiral blade 34 is spiral-shaped, causing the fluid to generate a combined axial and radial flow. At the same time, the connecting rod 311 rotates outside the connecting rod 310. The fixed blade 312 is fixed to the connecting rod 310. When the fluid is pushed by the fixed disk 314, it changes direction when it encounters the fixed blade 312, forming more vortices, thereby improving the mixing effect of the fluid inside the fixed sleeve 32. After the reaction, the pump 37 drives the fluid inside the fixed sleeve 32 to be sent into the filter 2 through the first connecting pipe 36 and the second connecting pipe 38. The filter 2 removes small molecule organic matter, heavy metal ions, salts and other pollutants from the landfill leachate using nanofiltration technology.

[0025] Example 2: Figure 1 and Figure 4 As shown, the pretreatment mechanism 4 includes a filter box 41, a discharge cylinder 43 fixedly connected to the bottom side of the filter box 41, the filter box 41 fixedly connected to the top of the mounting base 1, a second motor 42 fixedly connected to one side of the filter box 41, a rotating rod 410 fixedly connected to the output end of the second motor 42 passing through the filter box 41, a scraper 48 fixedly connected to the outside of the rotating rod 410, and the other end of the rotating rod 410 passing through the side of the filter box 41; a filter plate 44 fixedly connected inside the filter box 41, a limiting tooth 49 fixedly connected above the filter plate 44; a cleaning roller 45 rotatably connected inside the filter box 41, a guide funnel 46 fixedly connected to the other side of the filter box 41, the guide funnel 46 being located below the cleaning roller 45, one end of the cleaning roller 45 passing through one side of the filter box 41, and a belt assembly 47 installed between one end of the cleaning roller 45 and the rotating rod 410.

[0026] The leachate is fed into the filter box 41 through the top opening. The filter plate 44 filters out particulate impurities from the leachate. Multiple equidistant teeth 49 are distributed above the filter plate 44, and the filtered particulate impurities are distributed within the intervals of the equidistant teeth 49. The second motor 42 drives the rotating rod 410 to rotate, causing the scraper 48 to rotate accordingly. The outer side of the scraper 48 has tooth marks corresponding to the intervals of the equidistant teeth 49. During the rotation of the scraper 48, the particulate impurities inside the equidistant teeth 49 are removed. Particulate impurities are scraped up and sent to the cleaning roller 45. The belt assembly 47 consists of two pulleys and a conveyor belt. During the operation of the filter box 41, it can drive the cleaning roller 45 to rotate. The cleaning roller 45 rolls the particulate impurities scraped up by the scraper 48 to the top of the guide funnel 46. The guide funnel 46 guides and sends it out. The leachate that has been filtered is sent to the feed hopper 33 through the filter plate 44. By uniformly treating the filtered particulate impurities, it is prevented from accumulating on the filter plate 44 and causing blockage.

[0027] The operating method and working principle of this device are as follows: Leachate is fed into the filter box 41 through the top opening. The filter plate 44 filters out particulate impurities within the leachate. The second motor 42 drives the rotating rod 410 to rotate, causing the scraper 48 to rotate as well. This scrapes up the particulate impurities inside the limiting teeth 49 and sends them to the cleaning roller 45. During the operation of the filter box 41, the cleaning roller 45 rotates, rolling the particulate impurities scraped up by the scraper 48 to the top of the guide funnel 46 before being discharged. The leachate, after filtration, passes through… The filter plate 44 is fed into the fixed sleeve 32, and the ozone gas is delivered into the fixed sleeve 32. It reacts with the liquid. The first motor 39 works to drive the rotating shaft 313 to rotate. The fixed disk 314 and the outer spiral blade 34 rotate accordingly. The fixed blade 312 and the connecting rod 310 are fixedly set to mix the fluid inside the fixed sleeve 32. The pump body 37 works to drive the fluid inside the fixed sleeve 32 through the first connecting pipe 36 and the second connecting pipe 38 to send it into the filter 2 to remove pollutants in the landfill leachate.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A leachate deep oxidation filtration mechanism comprising a mounting base (1), characterized in that: A pretreatment mechanism (4) is installed on the top of one side of the mounting base (1). An oxidation mechanism (3) is provided at one end of the pretreatment mechanism (4). The oxidation mechanism (3) includes a housing (31). A support frame (35) is fixedly connected to the outside of the housing (31). One end of the support frame (35) is fixedly connected to the top side of the mounting base (1). A fixing sleeve (32) is fixedly connected inside the support frame (35). A cavity is provided between the housing (31) and the fixing sleeve (32). A first motor (39) is fixedly connected to one side of the housing (31). The output end of the first motor (39) A rotating shaft (313) is fixedly connected to one side of the outer shell (31) and the other side of the outer shell (31). A connecting rod (310) is rotatably connected to one end of the rotating shaft (313). One end of the connecting rod (310) is fixedly connected to the other end of the fixed sleeve (32). A sleeve rod (311) is rotatably connected to the outside of the connecting rod (310). An outer helical blade (34) is fixedly connected to the end of the sleeve rod (311). A fixed disk (314) is fixedly connected to one end of the outer helical blade (34). The middle part of the fixed disk (314) is fixedly connected to the outside of the rotating shaft (313).

2. The leachate deep oxidation filtration mechanism according to claim 1, characterized in that: A fixing blade (312) is fixedly connected to the outside of the connecting rod (310), and the fixing blade (312) and the sleeve rod (311) are spaced apart on the outside of the connecting rod (310).

3. The leachate deep oxidation filtration mechanism according to claim 1, characterized in that: The other end of the outer shell (31) is fixedly connected to the feed hopper (33).

4. The leachate deep oxidation filtration mechanism according to claim 1, characterized in that: The bottom side of the outer shell (31) is fixedly connected to a first connecting pipe (36), one end of the first connecting pipe (36) is fixedly connected to a pump body (37), the bottom side of the pump body (37) is fixedly connected to one side of the support frame (35), the other end of the pump body (37) is fixedly connected to a second connecting pipe (38), and one end of the second connecting pipe (38) is fixedly connected to a filter (2).

5. The leachate deep oxidation filtration mechanism according to claim 1, characterized in that: The pretreatment mechanism (4) includes a filter box (41), a discharge cylinder (43) is fixedly connected to the bottom side of the filter box (41), the filter box (41) is fixedly connected to the top of the mounting base (1), a second motor (42) is fixedly connected to one side of the filter box (41), a rotating rod (410) is fixedly connected to the output end of the second motor (42) through the filter box (41), a scraper (48) is fixedly connected to the outside of the rotating rod (410), and the other end of the rotating rod (410) passes through the side of the filter box (41).

6. The leachate deep oxidation filtration mechanism according to claim 5, characterized in that: A filter plate (44) is fixedly connected inside the filter box (41), and a limiting tooth (49) is fixedly connected above the filter plate (44).

7. The leachate deep oxidation filtration mechanism according to claim 5, characterized in that: A cleaning roller (45) is rotatably connected inside the filter box (41), and a guide funnel (46) is fixedly connected to the other side of the filter box (41). The guide funnel (46) is located below the cleaning roller (45). One end of the cleaning roller (45) passes through one side of the filter box (41), and a belt assembly (47) is installed between one end of the cleaning roller (45) and the rotating rod (410).

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