Bionic multi-stage microfiltration algae removal ship
By designing a biomimetic multi-stage microfiltration algae removal vessel, and employing multi-stage filtration and drying treatment, the problem of low efficiency in treating medium and low concentration algae-laden water is solved, achieving efficient and rapid blue-green algae harvesting and treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SUYUAN ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-12
AI Technical Summary
Existing surface algae harvesting vessels are inefficient and energy-intensive when treating algae-rich water with medium to low concentrations and ultra-low concentrations. Furthermore, low-concentration algae-rich water is prone to stagnant water formation, which reduces harvesting efficiency and vessel speed.
Design a biomimetic multi-stage microfiltration algae removal vessel that employs a microfiltration arm, a microfiltration inclined screen, a biomimetic microfilter, and a biomimetic centrifugal microfilter for four-stage filtration, combined with an algae slurry drying device to achieve efficient filtration and flocculation drying of algae water.
It improves the treatment efficiency of low-to-medium concentration algae water, avoids water accumulation, increases the ship's speed and the efficiency of blue-green algae removal, and is suitable for early preventive removal, avoiding the drawbacks of traditional methods.
Smart Images

Figure CN224351171U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of algae removal equipment technology, specifically a biomimetic multi-stage microfiltration algae removal vessel. Background Technology
[0002] There are generally two main types of surface algae harvesting vessels on the market. One type uses a water pump to draw algae-laden water onto the vessel for filtration or by adding flocculants for algae separation and drying. The drawback is that for low to medium concentrations of algae, a larger pump volume and higher energy consumption are needed to harvest the same amount of algae sludge, and the onboard processing space needs to be increased significantly, resulting in a substantial reduction in overall efficiency. The other type uses a long arm to collect algae-laden water towards the hull, gradually increasing the concentration through accumulation. This method is more suitable for higher concentrations of algae; it is almost impossible to operate on low or ultra-low concentrations. Furthermore, water stagnation easily forms inside the vessel, reducing collection efficiency and resulting in very slow movement and low actual processing capacity. Utility Model Content
[0003] The purpose of this invention is to provide a biomimetic multi-stage microfiltration algae removal vessel.
[0004] A biomimetic multi-stage microfiltration algae removal vessel includes a hull. Two foldable microfiltration arms are symmetrically arranged at the front of the hull. An inlet is provided on the hull behind the microfiltration arms. An inclined microfiltration screen is inclinedly arranged inside the inlet. An algae water storage chamber connected to the inlet is provided above the inclined microfiltration screen. A partition plate is provided at the rear of the inclined microfiltration screen. Multiple water passage holes are provided at the bottom of the hull below the inclined microfiltration screen. An algae passage pipe connected to the algae water storage chamber is fixedly installed in the hull behind the partition plate. A biomimetic algae removal device connected to the algae passage pipe is fixedly installed in the hull behind the algae passage pipe.
[0005] Furthermore, the biomimetic algae removal device includes a biomimetic microfilter, a biomimetic centrifugal microfilter, and an algae slurry drying device. The inlet of the biomimetic microfilter is connected to the algae-passing tube, the outlet of the biomimetic microfilter is connected to the inlet of the biomimetic centrifugal microfilter through a first tube, and the outlet of the biomimetic centrifugal microfilter is connected to the algae slurry drying device through a second tube.
[0006] Furthermore, the algae slurry drying device includes a flocculation mixer and a screw press connected together, and the inlet of the flocculation mixer is connected to the pipe body.
[0007] Furthermore, the external drainage outlets of the biomimetic microfilter, the biomimetic centrifugal microfilter, and the screw press all extend to the outside of the hull.
[0008] In summary, this utility model has the following beneficial effects:
[0009] This invention utilizes a four-stage filtration system—a microfilter arm, a microfilter inclined screen, a biomimetic microfilter, and a biomimetic centrifugal microfilter—to efficiently filter low- to medium-concentration algae-rich water into a concentrated algae slurry. The concentrated algae slurry undergoes flocculation and drying in an algae slurry drying device to form algae sludge. By incorporating a water passage hole at the bottom of the vessel, this invention avoids waterlogging during algae collection, increases vessel speed, and enhances the efficiency of algae harvesting and treatment. This invention is suitable for early-stage preventative algae harvesting and harvesting in mild algae blooms, avoiding the drawbacks of traditional harvesting methods that require waiting until an algae bloom has occurred for efficient operation. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural diagram of a biomimetic multi-stage microfiltration algae removal boat according to the present invention;
[0011] Figure 2 This is a schematic diagram of the main structure of a biomimetic multi-stage microfiltration algae removal boat according to the present invention;
[0012] Figure 3 This is a top view schematic diagram of a biomimetic multi-stage microfiltration algae removal vessel according to the present invention.
[0013] In the diagram: 1. Hull, 2. Microfiltration arm, 3. Inlet, 4. Algae water storage chamber, 5. Microfiltration inclined screen, 6. Water passage hole, 7. Divider plate, 8. Algae passage tube, 9. Bionic microfilter, 10. Tube body one, 11. Bionic centrifugal microfilter, 12. Tube body two, 13. Algae slurry drying device, 131. Flocculation mixer, 132. Screw press. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0015] The following is in conjunction with the appendix Figure 1-3 The present invention will be further described as follows:
[0016] A biomimetic multi-stage microfiltration algae removal boat includes a hull 1. Two foldable microfiltration arms 2 are symmetrically arranged at the front of the hull 1. An inlet 3 is opened on the hull 1 behind the microfiltration arms 2. A microfiltration inclined screen 5 is inclinedly arranged inside the inlet 3. An algae water storage chamber 4 connected to the inlet 3 is arranged above the microfiltration inclined screen 5. A partition plate 7 is arranged at the rear of the microfiltration inclined screen 5. Multiple water passage holes 6 are opened at the bottom of the hull 1 below the microfiltration inclined screen 5. An algae passage pipe 8 connected to the algae water storage chamber 4 is fixedly arranged in the hull 1 behind the partition plate 7. A biomimetic algae removal device connected to the algae passage pipe 8 is fixedly arranged in the hull 1 behind the algae passage pipe 8.
[0017] In this embodiment, the multi-stage microfiltration system is the core of the design. When the vessel 1 is navigating on the water surface to collect blue-green algae, the open microfiltration arm 2 is used to collect algae-laden water over a wider working area. Preferably, the microfiltration arm 2 is equipped with a micron-sized filter screen to achieve the first stage of filtration, allowing higher concentration algae-laden water to enter the vessel 1 through the inlet 3. The algae-laden water undergoes a second stage of filtration through the microfiltration inclined screen 5, where the clear water is filtered out. After passing through the microfiltration inclined screen 5, the water is discharged from the vessel 1 through the water passage hole 6. The higher concentration algae-laden water enters the algae-laden water storage chamber 4 and, after being guided by the partition plate 7, enters the algae-removing device through the algae-passing pipe 8, achieving the third and fourth stages of filtration, as well as flocculation and drying treatments to form algae sludge.
[0018] The biomimetic algae removal device includes a biomimetic microfilter 9, a biomimetic centrifugal microfilter 11, and an algae slurry drying device 13. The inlet of the biomimetic microfilter 9 is connected to the algae-passing pipe 8, the outlet of the biomimetic microfilter 9 is connected to the inlet of the biomimetic centrifugal microfilter 11 through a first pipe body 10, and the outlet of the biomimetic centrifugal microfilter 11 is connected to the algae slurry drying device 13 through a second pipe body 12.
[0019] The algae slurry drying device 13 includes a flocculation mixer 131 and a screw press 132 connected together. The inlet of the flocculation mixer 131 is connected to the pipe body 12.
[0020] The external drainage ports of the bionic microfilter 9, the bionic centrifugal microfilter 11, and the screw press 132 all extend to the outside of the hull 1.
[0021] In this embodiment, the algae water in the algae water storage chamber 4 enters the biomimetic microfilter 9 through the algae-passing pipe 8 for third-stage filtration. The filtered water from the biomimetic microfilter 9 is discharged from the outside of the hull 1 through its drain outlet by a water pump. The remaining algae water with a higher concentration enters the biomimetic centrifugal microfilter 11 through the first pipe 10 for fourth-stage filtration. The biomimetic centrifugal microfilter 11 has a higher filter cartridge rotation speed, resulting in centrifugal action and higher filtration precision. The filtered water from the biomimetic centrifugal microfilter 11 is discharged from the outside of the hull 1 by gravity flow from its drain outlet. The remaining concentrated algae slurry enters the flocculation mixer 131 through the second pipe 12 for flocculation treatment. The flocculated algae flocs are then dried by the screw press 132 to form algae mud.
[0022] In summary, this utility model is not limited to the specific embodiments described above. Those skilled in the art can make various modifications and alterations without departing from the spirit and scope of this utility model. The scope of protection of this utility model should be determined by the claims of this utility model.
[0023] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.
[0024] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.
Claims
1. A biomimetic multi-stage microfiltration algae removal vessel, comprising a hull (1), wherein two foldable microfiltration arms (2) are symmetrically arranged at the front of the hull (1), characterized in that, An inlet (3) is provided on the hull (1) behind the microfiltration arm (2). A microfiltration inclined screen (5) is inclined inside the inlet (3). An algae water storage chamber (4) connected to the inlet (3) is provided above the microfiltration inclined screen (5). A partition plate (7) is provided at the rear of the microfiltration inclined screen (5). Multiple water passage holes (6) are provided at the bottom of the hull (1) below the microfiltration inclined screen (5). An algae passage pipe (8) connected to the algae water storage chamber (4) is fixedly provided inside the hull (1) behind the partition plate (7). A biomimetic algae removal device connected to the algae passage pipe (8) is fixedly provided inside the hull (1) behind the algae passage pipe (8).
2. The biomimetic multi-stage microfiltration algae removal boat as described in claim 1, characterized in that, The biomimetic algae removal device includes a biomimetic microfilter (9), a biomimetic centrifugal microfilter (11), and an algae slurry drying device (13). The inlet of the biomimetic microfilter (9) is connected to the algae-passing pipe (8), the outlet of the biomimetic microfilter (9) is connected to the inlet of the biomimetic centrifugal microfilter (11) through a first pipe body (10), and the outlet of the biomimetic centrifugal microfilter (11) is connected to the algae slurry drying device (13) through a second pipe body (12).
3. The biomimetic multi-stage microfiltration algae removal boat as described in claim 2, characterized in that, The algae slurry drying device (13) includes a flocculation mixer (131) and a screw press (132) connected together. The inlet of the flocculation mixer (131) is connected to the pipe body (12).
4. The biomimetic multi-stage microfiltration algae removal boat as described in claim 3, characterized in that, The external drainage outlets of the bionic microfilter (9), the bionic centrifugal microfilter (11), and the screw press (132) all extend to the outside of the hull (1).