Device for cleaning denitrification deep bed filter

Abstract

Downward vertical plates are arranged on the two sides of a movable platform, a front idler wheel and a rear idler wheel are arranged on the upper portion between the vertical plates, the idler wheels walk along the top of the tank wall, two side scrapers are arranged on the inner sides of the vertical plates, the lower portions of the side scrapers incline towards the central axis of the vertical plates, and the side scrapers make contact with the side face of the tank wall. A first extension scraper is arranged below one side scraper, and a second extension scraper is arranged below the other side scraper; the lower side of the vertical plate is provided with two connecting rods, the lower ends of the connecting rods are fixedly provided with a bottom plate, the inner side above the bottom plate is provided with a collecting tank, the lower part of the bottom plate is provided with a collecting box, two ends of the collecting box are open, and the middle part in the collecting box is provided with a filter plate with holes. The device can be controlled to clean water tank sundries such as duckweed on the tank wall of the filter tank and near the tank wall, the tank wall can be well cleaned through the side scraping plate on the side surface and the two extended scraping plates, and the cleaned sundries can fall into the collecting tank and are prevented from falling into water in the filter tank.

Description

Technical Field

[0001] The utility model relates to the field of filter tank cleaning, in particular to a device for cleaning a denitrification deep bed filter tank. Background Art

[0002] Denitrifying deep-bed filters are a commonly used, high-efficiency filtration system in municipal water and wastewater treatment. They remove nitrates from water through biochemical processes and utilize physical filtration to remove suspended solids. However, humid and nutrient-rich environments often lead to excessive growth of microorganisms, such as moss, on the filter walls, compromising filtration efficiency and increasing maintenance difficulties.

[0003] Existing cleaning methods mostly rely on manual cleaning, using scrapers or other tools to scrape off the moss to prevent it from continuing to grow. However, in many sewage treatment plants, in order to prevent external debris and duckweed from falling into the filter tank, a top cover is added to the filter tank. Although the added top cover can solve the problem of some plant leaves and seeds falling into the filter tank, it also greatly increases the difficulty of cleaning the moss and duckweed on the filter tank wall. Utility Model Content

[0004] Based on the above technical problems, the utility model proposes a device for cleaning a denitrification deep bed filter.

[0005] The cleaning device of claim 1, wherein the movable platform is provided with downward vertical plates on both sides of the movable platform, and two front and rear rollers are provided on the upper part between the vertical plates, and the rollers move along the top of the pool wall, and the rollers are driven to rotate by a motor installed on the vertical plates. Two side scrapers are provided on the inner sides of the vertical plates, and the lower parts of the side scrapers are inclined toward the central axis of the vertical plates, and the side scrapers contact the side surfaces of the pool wall, and a first extended scraper is provided under one of the side scrapers, and a second extended scraper is provided under the other side scraper; two connecting rods are provided on the lower side of the vertical plates, and a bottom plate is fixedly provided at the lower end of the connecting rods, a collecting trough is provided on the inner side above the bottom plate, and the collecting box is provided under the bottom plate, and both ends of the collecting box are open, and a filter plate with holes is provided in the middle part of the collecting box.

[0006] Preferably, the first extended scraper is vertically downward, the second extended scraper is inclined downward, and the lower end of the first extended scraper is connected to the lower part of the second extended scraper.

[0007] Preferably, the connecting rod is a telescopic rod.

[0008] Preferably, a top column is provided on the lower side of the center of the mobile platform, and a square frame is provided below the top column. The front and rear sharp corners of the square frame coincide with the central axis of the mobile platform, the vertical central axis of the square frame coincides with the central axis of the vertical plate, and the diagonal length of the square frame is less than the length of the upper end openings of the two side scrapers.

[0009] Preferably, the filter plate is fixed to the middle of the collection box by bolts, and in a non-fixed state, the filter plate can move parallely back and forth in the collection box.

[0010] Beneficial effects: This device can controllably clean the filter tank wall and water tank debris such as duckweed near the wall. The side scrapers and two extended scrapers can clean the tank wall very well. The cleaned debris will fall into the collection tank to prevent it from falling into the water of the filter tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Shows a schematic structural diagram of the utility model;

[0012] Figure 2 Shows a side view of the present invention;

[0013] Figure 3 shows a structural diagram of the underside of the mobile platform;

[0014] Figure 4 Shown Figure 3 Side view of;

[0015] Figure 5 Shown Figure 4 AA cross-section view. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0017] like Figures 1 to 5 The device shown is for cleaning a denitrification deep bed filter. A control system for controlling the device is provided in a mobile platform 2. Downward vertical plates 3 are provided on both sides of the mobile platform 2. The mobile platform 2 and the vertical plates 3 form a downwardly opening U-shaped trough structure. Two front and rear rollers 4 are provided in the upper part between the vertical plates 3. The rollers 4 move along the top of the pool wall 1. The rollers 4 are driven to rotate by a motor 5 installed on the vertical plates 3. The motor 5 is controlled by the control system. A remote signal transmission device can be provided in the control system for remote control of the device.

[0018] Two side scrapers 9 are provided on the inner side of the vertical plate 3. The lower part of the side scraper 9 is inclined toward the central axis of the vertical plate 3, that is, the side scrapers 9 are distributed in an "inner eight" shape with the central axis of the vertical plate 3 as the center line. The side scrapers 9 are in contact with the side of the pool wall 1. When the mobile platform 2 moves on the pool wall 1, the side scrapers 9 scrape off moss and other mosses on the side of the pool wall 1.

[0019] In order to clean the pool wall 1 over a large area, a first extended scraper 10 is arranged under one of the side scrapers 9, and a second extended scraper 11 is arranged under the other side scraper 9. The first extended scraper 10 is shorter and arranged vertically downward, and the second scraper is arranged at an angle. The lower end of the first extended scraper 10 is connected to the lower part of the second extended scraper 11, and the lower end of the second extended scraper 11 is located directly below the middle of the collecting trough 8. In this way, no matter whether the mobile platform 2 moves forward or backward, the two side scrapers 9 and the two extended scrapers can play the role of scraping and cleaning, and the scraped moss will hardly fall into the water.

[0020] Two connecting rods 6 are provided on the lower side of the vertical plate 3, and a bottom plate 7 is fixedly provided at the lower end of the connecting rod 6. A collecting trough 8 is provided on the inner side above the bottom plate 7, and a collecting box 12 is provided under the bottom plate 7. Both ends of the collecting box 12 are open, and a filter plate 13 with holes is provided in the middle of the collecting box 12. The connecting rod 6 can be set as a telescopic rod, such as an electric telescopic rod or a pneumatic telescopic rod, to ensure that the collecting box 12 can collect phytoplankton on the water surface.

[0021] The filter plate 13 is arranged in the middle of the collection box 12 to ensure that phytoplankton can be collected when the mobile platform 2 moves forward and backward. However, it cannot move back and forth in a single collection because this will cause the phytoplankton collected in one trip to be carried out on the return trip.

[0022] After the collection box 12 collects phytoplankton once, in order to facilitate the cleaning of the phytoplankton in the collection box 12, the filter plate 13 is set to a detachable installation method. The filter plate 13 is fixed to the middle of the collection box 12 by bolts. In a non-fixed state, the filter plate 13 can move parallel to each other in the collection box 12. When cleaning, the collected phytoplankton can be directly poured out.

[0023] In order to facilitate the cleaning of moss on the top of the pool wall 1, a top column 15 is set on the lower side of the center of the mobile platform 2, and a square frame 14 is set below the top column 15. The front and rear sharp corners of the square frame 14 coincide with the central axis of the mobile platform 2. The front and rear tips of the square frame 14 are set, which not only makes it easy to scrape off the moss, but also the scraped moss will fall into the collection trough 8 along the oblique side of the square frame 14 as the mobile platform 2 moves; because the moss scraped off the top of the pool wall 1 may drift away, the vertical central axis of the square frame 14 is coincident with the central axis of the vertical plate 3, and the diagonal length of the square frame 14 is less than the length of the upper openings of the two side scrapers 9, so that the scraped moss will fall between the two side scrapers 9 to reduce the probability of it falling to the water surface.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for cleaning a denitrification deep bed filter, characterized in that: include: Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The first extended scraper is vertically downward, the second extended scraper is inclined downward, and the lower end of the first extended scraper is connected to the lower part of the second extended scraper; A top column is provided on the lower side of the center of the mobile platform, and a square frame is provided below the top column. The front and rear sharp corners of the square frame coincide with the central axis of the mobile platform, the vertical central axis of the square frame coincides with the central axis of the vertical plate, and the diagonal length of the square frame is less than the length of the upper end openings of the two side scrapers.

2. The device for cleaning a denitrification deep bed filter according to claim 1, characterized in that: The filter plate is fixed to the middle of the collection box by bolts. In a non-fixed state, the filter plate can move parallely back and forth in the collection box.

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