Grid tank for treating household garbage leachate

Abstract

The utility model discloses a grid pool for treating household garbage leachate, which comprises a grid pool main body, at least one filter grid is arranged in the grid pool main body, fixing frames corresponding to the filter grid are symmetrically arranged on two sides of a pool body of the grid pool main body, driving devices are arranged on the fixing frames, and the driving devices are connected with the grid pool main body. The height of the filtering grating is twice larger than the depth of the grating pool main body, a rotating shaft is arranged in the middle of the filtering grating, and the driving device is connected with the rotating shaft; a plurality of filtering holes are uniformly formed in the side surface of the filtering grid, and two horizontal plates are symmetrically arranged on the surfaces of the two sides of the middle of the filtering grid. According to the grating pool for treating the household garbage leachate, the filtering grating can be conveniently cleaned under the condition that the work of the grating pool is not influenced, the situation that holes of the grating are blocked by fixed garbage accumulated when the filtering grating works for a long time is effectively avoided, the filtering efficiency is improved, smooth water flow is ensured, the pumping energy consumption is reduced, and energy conservation and environmental protection are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage treatment, in particular to a grid tank for treating domestic garbage leachate. Background Technique

[0002] In the process of domestic garbage treatment, due to the influence of factors such as the nature of domestic garbage itself, microbial activities, and rainwater infiltration, leachate containing high concentrations of organic matter and harmful substances will be generated. If this leachate is directly discharged without proper treatment, it will cause serious pollution to groundwater and the surrounding environment. Therefore, effective treatment of leachate has become an important link in the management of landfills.

[0003] Currently, the treatment of domestic garbage leachate mainly includes various means such as physical methods (such as sedimentation, filtration), chemical methods (such as neutralization, oxidation), and biological methods. Among them, the grid interception technology, as one of the primary treatment steps, is widely used. It is mainly used to remove large-particle suspended solids and other visible debris in the leachate, providing convenient conditions for subsequent more refined treatment processes. In the existing grid tanks for treating domestic garbage leachate, the filtering grids used will accumulate a lot of solid garbage after long-term operation. These solid garbage will not only block the grid pores, reducing the filtration efficiency, but also may cause poor water flow and increase the pumping energy consumption. Due to the continuous accumulation of solid garbage, it is necessary to stop the machine regularly to clean the grids. The traditional grid tank design is relatively complex and difficult to clean, often requiring the entire grid tank to stop running for a long time, seriously affecting the treatment efficiency of domestic garbage. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, and provide a grid tank for treating domestic garbage leachate, which can conveniently clean the filtering grid without affecting the operation of the grid tank, effectively avoiding the blockage of the grid pores by the fixed garbage accumulated during the long-term operation of the filtering grid, improving the filtration efficiency, ensuring smooth water flow, reducing the pumping energy consumption, being beneficial to energy conservation and environmental protection, and can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A grid tank for treating domestic garbage leachate, including a grid tank main body. At least one filtering grid is arranged in the grid tank main body. Fixed frames corresponding to the filtering grid are symmetrically arranged on both sides of the tank body of the grid tank main body. A driving device is arranged on the fixed frame. The height of the filtering grid is greater than twice the depth of the grid tank main body, and a rotating shaft is arranged in the middle of the filtering grid. The driving device is connected to the rotating shaft. A number of filtering holes are evenly arranged on the side surface of the filtering grid, and two horizontal plates are symmetrically arranged on both sides of the middle surface of the filtering grid. The horizontal plates are arranged on both sides of the rotating shaft, and when the horizontal plates are in a horizontal state, the upper surface thereof is higher than the upper surface of the grid tank main body.

[0006] As a preferred technical solution of the utility model, the driving device includes a driving motor and a worm gear reduction box arranged on the outer surface of the fixed frame, the worm gear reduction box is respectively provided with a worm wheel and a worm, the output shaft of the driving motor penetrates into the worm gear reduction box and is connected to the worm through a coupling, the worm and the worm wheel are meshed with each other, and the end of the rotating shaft passes through the fixed frame and is connected to the shaft hole of the worm wheel.

[0007] As a preferred technical solution of the utility model, a collecting groove is opened on the side surface of the horizontal plate. When the horizontal plate is in a horizontal state, the collecting groove of the horizontal plate on the upstream side faces downward, and the collecting groove of the horizontal plate on the downstream side faces upward.

[0008] As a preferred technical solution of the utility model, a sewage outlet corresponding to the collection tank is provided on the side surface of the horizontal plate.

[0009] As a preferred technical solution of the utility model, a shovel plate is respectively provided on the top and bottom side surfaces of the filter grille, and the two shovel plates are symmetrically arranged with the center of the rotating shaft as the center of symmetry. When any shovel plate is located on the inner side of the grille pool body, it faces the upstream side.

[0010] As a preferred technical solution of the utility model, two groups of grille cones are arranged on the side surface of the filter grille, and the two groups of grille cones are respectively arranged on the upper and lower sides and on the two side surfaces of the filter grille. The two groups of grille cones are symmetrically arranged with the center of the rotating shaft as the center of symmetry. When any group of grille cones is located on the inner side of the grille pool body, it faces the upstream side.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: a rotatable filter grille is designed, the overall height of the filter grille is twice that of the grille pool body, and its lower part filters the leachate of domestic waste in the grille pool body to remove large suspended particles and other visible debris in the leachate. When the filter grille needs to be cleaned, it only takes about half an hour to stop the machine, and the driving device drives the rotating shaft and the filter grille to rotate 180°. The part of the lower side of the filter grille that needs to be cleaned is rotated to the upper side, and the clean part of the upper side of the filter grille is rotated into the grille pool body. At this time, the grille pool can continue to work to filter the leachate of domestic waste; the horizontal plates symmetrically arranged on both sides of the filter grille can be used to receive the cleaned solid waste and other impurities. When the grille pool body is put into use again, the staff can clean the part of the filter grille that needs to be cleaned that is rotated to the upper side at this time, without affecting the normal operation of the grille pool body, thereby improving the overall treatment efficiency of domestic waste. This design allows for easy cleaning of the filter grille without affecting the operation of the grille pool, effectively preventing the grille pores from being clogged by fixed garbage accumulated over a long period of time, improving filtration efficiency, ensuring smooth water flow, and reducing pumping energy consumption, which is beneficial to energy conservation and environmental protection. Brief Description of the Drawings

[0012] Figure 1 is a schematic structural view of the present utility model;

[0013] Figure 2 is a schematic structural view of the filter grille of the present utility model;

[0014] Figure 3 is the present utility model Figure 2 side view structural schematic diagram;

[0015] Figure 4 is a schematic structural view of the driving device of the present utility model.

[0016] In the figure: 1 grille tank main body, 2 fixing frame, 3 driving device, 4 driving motor, 5 worm, 6 worm gear, 7 rotating shaft, 8 filter grille, 9 filter holes, 10 horizontal plate, 11 collection tank, 12 shovel plate, 13 grille cone. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-4 , the present utility model provides a technical solution: a grille tank for treating domestic waste leachate, including a grille tank main body 1, a plurality of filter grilles 8 are arranged in the grille tank main body 1, and a plurality of filter holes 9 are evenly arranged on the side surface of the filter grille 8. Along the water flow direction of the grille tank, the apertures of the filter holes 9 of the plurality of filter grilles 8 gradually decrease, so as to perform multi-stage separation on the leachate.

[0019] The height of the filter grille 8 is greater than twice the depth of the grille tank main body 1, and a rotating shaft 7 is arranged in the middle of the filter grille 8, so that the filter grille 8 can rotate. Its lower part filters the domestic waste leachate in the grille tank main body 1 to remove large particle suspended matters and other visible sundries in the leachate, etc. When it is necessary to clean the filter grille 8, only need to stop the machine for about half an hour, drive the filter grille 8 to rotate 180° through the rotating shaft 7, the part to be cleaned on the lower side of the filter grille 8 is rotated to the upper side, and the clean part on the upper side of the filter grille 8 is rotated into the grille tank main body 1. At this time, the grille tank can continue to work, filter the domestic waste leachate, and at the same time can clean the upper side of the filter grille 8, without affecting the overall work of the grille tank, ensuring the work efficiency.

[0020] The two sides of the pool body of the grille pool body 1 are symmetrically provided with fixed frames 2 corresponding to the filter grille 8, and the rotating shaft 7 is rotatably arranged between the two fixed frames 2. The fixed frames 2 are provided with a driving device 3, and the driving device 3 is connected to the rotating shaft 7. Specifically, the driving device 3 includes a driving motor 4 and a worm gear reduction box arranged on the outer surface of the fixed frame 2. The driving motor 4 is electrically connected to the external control switch. The worm gear reduction box is provided with a worm wheel 6 and a worm 5 respectively. The output shaft of the driving motor 4 penetrates into the worm gear reduction box and is connected to the worm 5 through a coupling. The worm 5 and the worm wheel 6 are meshed with each other. The end of the rotating shaft 7 penetrates the fixed frame 2 and is connected to the shaft hole of the worm wheel 6. The driving motor 4 drives the worm wheel 6 to rotate through the worm 5, and the worm wheel 6 drives the filter grille 8 to rotate through the rotating shaft 7, so that it turns up and down, and performs filtering and cleaning in turn. The worm gear reduction box has a self-locking function, and will not rotate when not subjected to external force, thereby ensuring the stability of the filter grille 8 during filtering.

[0021] The driving motor 4 can be selected as a common servo motor, which is a common electronic component in the prior art. Its specific structure, working principle and circuit connection are all well-known technologies and will not be described in detail here.

[0022] Two horizontal plates 10 are symmetrically arranged on the two side surfaces of the middle part of the filter grille 8. The horizontal plates 10 are arranged on both sides of the rotating shaft 7, and the upper surfaces of the horizontal plates 10 are higher than the upper surface of the grille pool body 1 when they are in a horizontal state. The horizontal plates 10 are used to receive the cleaned solid garbage and other impurities. When the grille pool body 1 is put into use again, the staff can clean the part of the filter grille 8 that needs to be cleaned that is rotated to the upper side at this time, which does not affect the normal operation of the grille pool body 1, thereby improving the overall treatment efficiency of domestic garbage.

[0023] The length of the horizontal plate 10 is less than or equal to the depth of the grille pool body 1 to ensure that it and the filter grille 8 can rotate in the grille pool body 1.

[0024] In a preferred technical solution, a collecting groove 11 is provided on the side surface of the horizontal plate 10. When the horizontal plate 10 is in a horizontal state, the collecting groove 11 of the horizontal plate 10 located on the upstream side faces downward, and the collecting groove 11 of the horizontal plate 10 located on the downstream side faces upward. For details, please refer to Figure 1 The water flows in the direction from left to right, that is, the left side is upstream and the right side is downstream. The water flows from left to right through the lower part of the filter grille 8 for filtration, and solid waste and other impurities accumulate on the left side of the lower part of the filter grille 8. When cleaning is required, the filter grille 8 rotates 180° clockwise, and the side with accumulated solid waste rotates to the upper right side. At this time, the collecting groove 11 of the horizontal plate 10 on the right side faces upward, close to the solid waste and other impurities, so as to facilitate the collection of the cleaned solid waste.

[0025] In a preferred technical solution, a sewage outlet corresponding to the collection tank 11 is provided on the side surface of the horizontal plate 10. The sewage outlet is arranged on the side away from the driving device 3. Workers can discharge the garbage in the collection tank 11 to the outside through the sewage outlet for solid waste treatment, which makes the operation more convenient.

[0026] In a preferred technical solution, a shovel plate 12 is respectively arranged on the top and bottom side surfaces of the filter grille 8. The two shovel plates 12 are centrosymmetrically arranged with the center of the rotation shaft 7 as the center of symmetry. When any one of the shovel plates 12 is inside the grille tank main body 1, it faces the upstream side. Specifically, reference can be made to Figure 3 , when the shovel plate 12 is in the upper part, it is arranged on the right side, and when it is in the lower part, it is arranged on the left side. In this way, when the filter grille 8 rotates clockwise, the solid garbage at the bottom in the upstream direction of the grille tank can be shoveled up, so as to clean the bottom part of the tank and delay the siltation and blockage at the bottom of the tank.

[0027] In a preferred technical solution, two groups of grille cones 13 are arranged on the side surface of the filter grille 8. The grille cones 13 are conical, which can catch larger solid garbage and prevent it from entering the filter holes 9 to cause blockage, ensuring the treatment efficiency of the leachate.

[0028] Furthermore, the positions and directions of the grille cones 13 and the shovel plates 12 are the same. Specifically, the two groups of grille cones 13 are respectively arranged on the upper and lower sides and on the two side surfaces of the filter grille 8. The two groups of grille cones 13 are centrosymmetrically arranged with the center of the rotation shaft 7 as the center of symmetry. When any one group of grille cones 13 is inside the grille tank main body 1, it faces the upstream side, that is, the grille cones 13 working in the tank are always facing the domestic waste leachate to be filtered and treated on the upstream side, while the grille cones 13 to be cleaned outside the tank are always on the downstream side corresponding to the horizontal plate 10, which is convenient for cleaning.

[0029] The parts not disclosed in the present utility model are all prior arts, and their specific structures, materials and working principles will not be elaborated in detail. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A grid tank for treating domestic waste leachate, comprising a grid tank main body (1), characterized in that: At least one filtering grille (8) is arranged inside the grille tank main body (1). Fixed frames (2) corresponding to the filtering grille (8) are symmetrically arranged on both sides of the tank body of the grille tank main body (1). A driving device (3) is arranged on the fixed frame (2). The height of the filtering grille (8) is greater than twice the depth of the grille tank main body (1), and a rotating shaft (7) is arranged in the middle of the filtering grille (8). The driving device (3) is connected to the rotating shaft (7). A plurality of filtering holes (9) are evenly arranged on the side surface of the filtering grille (8), and two horizontal plates (10) are symmetrically arranged on both side surfaces in the middle of the filtering grille (8). The horizontal plates (10) are arranged on both sides of the rotating shaft (7), and when the horizontal plates (10) are in a horizontal state, the upper surface thereof is higher than the upper surface of the grille tank main body (1).

2. The grid tank for treating domestic waste leachate according to claim 1, wherein: The driving device (3) includes a driving motor (4) arranged on the outer side surface of the fixed frame (2) and a worm and worm gear reduction box. A worm wheel (6) and a worm (5) are respectively arranged inside the worm and worm gear reduction box. The output shaft of the driving motor (4) penetrates into the worm and worm gear reduction box and is connected to the worm (5) through a coupling. The worm (5) meshes with the worm wheel (6). The end of the rotating shaft (7) penetrates out of the fixed frame (2) and is connected to the shaft hole of the worm wheel (6).

3. A grid tank for treating domestic waste leachate according to claim 1, characterized in that: A collecting groove (11) is formed on the side surface of the horizontal plate (10). When the horizontal plate (10) is in a horizontal state, the collecting groove (11) of the horizontal plate (10) on the upstream side faces downward, and the collecting groove (11) of the horizontal plate (10) on the downstream side faces upward.

4. A grid tank for treating domestic waste leachate according to claim 3, characterized in that: A sewage discharge port corresponding to the collecting groove (11) is formed on the side surface of the horizontal plate (10).

5. A grid tank for treating domestic waste leachate according to claim 1, characterized in that: A shoveling plate (12) is respectively arranged on the top and bottom side surfaces of the filtering grille (8). The two shoveling plates (12) are centrosymmetrically arranged with the center of the rotating shaft (7) as the center of symmetry. When any one of the shoveling plates (12) is located inside the grille tank main body (1), it faces the upstream side.

6. A grid tank for treating domestic waste leachate according to any one of claims 1-5, characterized in that: Two groups of grille cones (13) are arranged on the side surface of the filtering grille (8). The two groups of grille cones (13) are respectively arranged on the upper and lower sides and on both side surfaces of the filtering grille (8). The two groups of grille cones (13) are centrosymmetrically arranged with the center of the rotating shaft (7) as the center of symmetry. When any one group of grille cones (13) is located inside the grille tank main body (1), it faces the upstream side.

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