Duckweed cleaning device

Abstract

The utility model discloses a duckweed cleaning device which relates to the technical field of water surface cleaning equipment and comprises a collecting device, a conveying system and a filtering device, the collecting device can float on the water surface and is provided with a containing space capable of containing water and duckweed, the top of the side wall of the collecting device is provided with an opening, and the opening is connected with a water inlet adjusting plate. The water inlet adjusting plate can move up and down and can cover the opening in the width direction, the water inlet adjusting plate is tightly attached to the side wall, the conveying system is connected and communicated with the containing space and the filtering device, and the filtering device is used for filtering duckweed. According to the water surface duckweed cleaning device, the duckweed collecting device can be suitable for different water bodies, and the application range of the duckweed collecting device is widened.

Description

Technical Field

[0001] This utility model relates to the technical field of water surface cleaning equipment, and in particular to a duckweed cleaning device. Background Technology

[0002] Secondary sedimentation tanks in wastewater treatment plants are generally built outdoors. In summer, under suitable conditions such as sunlight, eutrophic substances in the water, and water temperature, a large amount of duckweed often grows on the surface of the secondary sedimentation tank. This not only affects the appearance but also makes it difficult to clean the surface scum. In severe cases, it can block the scum discharge pipes, posing a significant threat to the normal operation of the wastewater treatment plant. Timely cleaning is necessary. Currently, many wastewater plants use manual cleaning, which, although requiring a large amount of manpower, is usually not very effective.

[0003] Existing patent (CN211080172U) discloses a duckweed cleaning device. The height of the inlet of this duckweed cleaning device cannot be adjusted. For different water bodies, because the buoyancy of the duckweed collection device varies, the depth to which the duckweed cleaning device enters the water body will be different in different water bodies. Therefore, the water level in different water bodies cannot be higher than the upper edge of the inlet of the collection device, and the duckweed cannot be continuously flowed into the duckweed collection box with the water flow. Therefore, this duckweed cleaning device has poor applicability to different water bodies. Utility Model Content

[0004] The purpose of this invention is to provide a duckweed cleaning device to solve the problems existing in the prior art and improve the applicability of the duckweed cleaning device to different water bodies.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a duckweed cleaning device, including a collection device, a conveying system, and a filtering device. The collection device can float on the water surface and has a holding space that can hold water and duckweed. The top of the side wall of the collection device has an opening, and a water inlet regulating plate is connected to the opening. The water inlet regulating plate can move up and down and can cover the opening in width. The water inlet regulating plate is in close contact with the side wall. The conveying system is connected and communicates with the holding space and the filtering device. The filtering device is used to filter duckweed.

[0007] Preferably, grooves are provided on both sides of the opening, and the water inlet regulating plate is slidably connected in the grooves. The water inlet regulating plate can move up and down in the grooves and maintain the position after the movement.

[0008] Preferably, the cross-section of the collecting device gradually decreases in the direction away from the upper edge of the collecting device.

[0009] Preferably, the collecting device has four sidewalls, the inner walls of the sidewalls being planar, and the openings being on two opposite sidewalls.

[0010] Preferably, the conveying system includes a water pump and a conveying pipeline, with both ends of the conveying pipeline connected to and communicating with the collecting device and the filtering device, respectively, and the water pump is installed on the conveying pipeline.

[0011] Preferably, the filtration device includes a duckweed collection sieve and a duckweed filter container, the duckweed collection sieve is disposed inside the duckweed filter container, and the conveying pipeline extends into the duckweed collection sieve.

[0012] Preferably, it further includes a first buoyancy device, which is fixed to the outside of the collecting device and enables the collecting device to float on the water surface.

[0013] Preferably, it also includes a second buoyancy device, which is fixedly installed on the conveying pipeline and enables the conveying pipeline to float on the water surface.

[0014] Preferably, the filtration device further includes a return water pipe, one end of which is connected to and communicates with the duckweed filter container, and the other end of which extends into the water tank.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This utility model provides a duckweed cleaning device. An opening is provided on the side wall of the duckweed collection device, and a water inlet regulating plate is connected to the opening. The water inlet regulating plate can move up and down. For different water bodies, due to varying buoyancy, the height of the water inlet regulating plate can be adjusted to regulate the distance from the water inlet regulating plate to the top of the opening. This adapts to changes in the distance between the water level and the bottom edge of the opening in different water bodies, ensuring that the water level in each water body is always higher than the upper edge of the water inlet of the collection device. This allows duckweed to continuously flow into the duckweed collection box with the water flow. Therefore, this duckweed collection device is applicable to different water bodies, increasing its range of use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a duckweed cleaning device in one embodiment of the present invention;

[0019] Wherein: 1-collection device; 2-first buoyancy device; 3-opening; 4-inlet regulating plate; 5-traction ear; 6-traction rope; 7-outlet short pipe; 8-transfer pipe; 9-water pump; 10-transfer pipe; 11-duckweed collection sieve basket; 12-duckweed filter container; 13-second buoyancy device; Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] In a preferred embodiment of this utility model, the duckweed cleaning device includes a collection device 1, a conveying system, and a filtering device, such as... Figure 1 As shown, the collecting device 1 can float on the water surface and has a holding space capable of holding water and duckweed. The top of the side wall of the collecting device 1 has an opening 3, and a water inlet regulating plate 4 is connected to the opening 3. The water inlet regulating plate 4 can move up and down and can cover the opening 3 in width. The water inlet regulating plate 4 fits tightly against the side wall. The conveying system is connected and communicates with the holding space and the filtering device, which is used to filter the duckweed. By adjusting the height of the water inlet regulating plate 4, the distance from the water inlet regulating plate 4 to the top of the opening 3 can be adjusted to adapt to changes in the distance between the water level and the bottom edge of the opening 3 in different water bodies. This ensures that the water level in the collecting device 1 is always higher than the upper edge of the inlet of the collecting device 1, regardless of the water body. Furthermore, before use, the water level in the collecting device 1 must be lower than the water level of the water body, allowing duckweed to continuously flow into the collecting device 1 with the water flow. Therefore, this duckweed collecting device is applicable to different water bodies, increasing its range of use.

[0023] In a preferred embodiment of this invention, grooves are provided on both sides of the opening 3, and the water inlet regulating plate 4 is slidably connected in the grooves. The water inlet regulating plate 4 can move up and down in the grooves and maintain its position after movement. Preferably, the water inlet regulating plate 4 is tightly fitted to the grooves. When force is applied, the water inlet regulating plate 4 can move up and down in the grooves. If no force is applied, the water inlet regulating plate 4 remains stationary in that position.

[0024] In a preferred embodiment of this invention, the cross-section of the collecting device 1 gradually decreases along the direction away from the upper edge of the collecting device 1, so that the collecting device 1 can effectively guide the duckweed with the water flow to the central part of the collecting device 1, thereby facilitating the collection and treatment of the duckweed.

[0025] In a preferred embodiment of this invention, the collecting device 1 has four side walls, the inner walls of which are flat, and two opposite side walls have openings 3. The inner walls of the collecting device 1 are smooth, inclined planes, which is more conducive to guiding duckweed with the water flow to the center of the collecting device 1. The two corresponding openings 3 enable the duckweed around the collecting device 1 to flow quickly into the collecting device 1 with the water flow, increasing the duckweed collection efficiency. However, the number of openings 3 in the duckweed cleaning device provided by this invention is not limited to two and can be adjusted according to usage requirements.

[0026] In a preferred embodiment of this invention, the conveying system includes a water pump 9 and a conveying pipeline. The two ends of the conveying pipeline are connected to and communicate with the collecting device 1 and the filtering device, respectively. The water pump 9 is installed on the conveying pipeline. The water pump 9 is used to pump duckweed and water from the collecting device 1 into the filtering device via the conveying pipeline.

[0027] In a preferred embodiment of this invention, the filtration device includes a duckweed collecting basket 11 and a duckweed filtering container 12. The duckweed collecting basket 11 is disposed inside the duckweed filtering container 12, and a conveying pipe extends into the duckweed collecting basket 11. The conveying pipe transports water and duckweed to the duckweed collecting basket 11, which retains the duckweed. The filtered water flows from the duckweed collecting basket 11 into the duckweed filtering container 12.

[0028] In a preferred embodiment of this invention, a first buoyancy device 2 is further included. The first buoyancy device 2 is fixed to the outside of the collecting device 1, and the first buoyancy device 2 enables the collecting device 1 to float on the water surface. This allows duckweed and water to flow into the collecting device 1 through the opening 3, and facilitates the movement and stability of the collecting device 1 on the water surface. The first buoyancy device 2 is preferably a float.

[0029] In other embodiments of this invention, the collecting device 1 itself may also have buoyancy and be able to float on the water surface, so that duckweed and water can flow into the collecting device 1 through the opening 3.

[0030] In a preferred embodiment of this invention, a second buoyancy device 13 is further included. The second buoyancy device 13 is fixedly installed on the conveying pipeline, and the second buoyancy device 13 enables the conveying pipeline to float on the water surface. This facilitates the movement and stability of the conveying pipeline in the water. The second buoyancy device 2 is preferably a float.

[0031] In a preferred embodiment of this invention, the filtration device further includes a return water pipe. One end of the return water pipe is connected to and communicates with the duckweed filter container 12, and the other end of the return water pipe extends into the water tank. The return water pipe transports the filtered water to the water tank, enabling the filtered water to be recycled, saving resources and protecting the environment.

[0032] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A duckweed cleaning apparatus comprising a collection device, a transport system and a filtration device, characterised in that: The collecting device can float on the water surface and has a containing space for containing water and duckweed, the top of the side wall of the collecting device has an opening, a water inlet adjusting plate is connected to the opening, the water inlet adjusting plate can move up and down and cover the opening in width, the water inlet adjusting plate is tightly attached to the side wall, the conveying system is connected to and communicates with the containing space and the filtering device, and the filtering device is used for filtering duckweed.

2. The duckweed cleanup device of claim 1, wherein: Grooves are arranged on both sides of the opening, the water inlet adjusting plate is slidingly connected to the grooves, and the water inlet adjusting plate can move up and down in the grooves and keep the position after moving.

3. The duckweed cleanup device of claim 1, wherein: The cross section of the collecting device gradually decreases in the direction away from the upper edge of the collecting device.

4. The duckweed cleanup device of claim 3, wherein: The collecting device has four side walls, the inner wall of the side wall is a plane, and the opposite two side walls have the opening.

5. The duckweed cleanup device of claim 1, wherein: The conveying system includes a water pump and a conveying pipeline, the conveying pipeline is connected to and communicates with the collecting device and the filtering device at both ends, and the water pump is arranged on the conveying pipeline.

6. The duckweed cleanup device of claim 5, wherein: The filtering device includes a duckweed collecting sieve basket and a duckweed filtering container, the duckweed collecting sieve basket is arranged inside the duckweed filtering container, and the conveying pipeline extends into the duckweed collecting sieve basket.

7. The duckweed cleanup device of claim 1, wherein: A first buoyancy device is further included, the first buoyancy device is fixed to the outside of the collecting device, and the first buoyancy device can make the collecting device float on the water surface.

8. The duckweed cleanup device of claim 6, wherein: A second buoyancy device is further included, the second buoyancy device is fixedly arranged on the conveying pipeline, and the second buoyancy device can make the conveying pipeline float on the water surface.

9. The duckweed cleanup device of claim 6, wherein: The filtering device further includes a backwater pipeline, one end of the backwater pipeline is connected to and communicates with the duckweed filtering container, and the other end of the backwater pipeline extends into a pool.

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