Microfiltration algae removal device and use method thereof

Abstract

The embodiment of the present application provides a microfiltration algae removal device and a method of using the same, which relates to the technical field of algae water treatment. The microfiltration algae removal device includes: a hull mechanism, a microfiltration mechanism, an air backwashing mechanism and a dehydration and drying mechanism; the driving assembly of the microfiltration mechanism is used to drive the first drum and the second drum of the microfiltration mechanism to rotate to filter the algae water, and the ultrasonic transducer of the microfiltration mechanism is arranged at the lower end of the first drum and the second drum; the multiple filter discs of the first drum and the multiple filter discs of the second drum are staggered, and the algae mud collection tank is arranged inside the first drum and the second drum; the air backwashing mechanism includes multiple flushing components, and each filter disc is provided with a flushing component at the upper end, and the flushing component is used to flush the algae mud attached to the filter disc by spraying compressed gas, so that the algae mud falls into the algae mud collection tank; the dehydration and drying mechanism is connected to the algae mud collection tank. The device of the present application solves the problem of low efficiency in blue algae treatment.

Description

Technical Field

[0001] The present application relates to the technical field of algae water treatment, and in particular to a microfiltration algae removal device and a method of using the same. Background Art

[0002] Cyanobacteria are organisms that can perform oxygen-producing photosynthesis and have a strong reproductive capacity. Especially in the hot season and in the late stage of aquaculture, they are prone to multiply in large numbers to form "water blooms", causing irreversible damage to aquaculture. In response to the ecological impact of cyanobacteria, a variety of treatment technologies are currently widely used.

[0003] In the prior art, the traditional physical method is to use mechanical equipment to salvage in the area where cyanobacteria are gathered. This method is inefficient and the screen is easily clogged. It is suitable for the situation where cyanobacteria are gathered in large quantities and are easy to salvage. The efficiency of removing cyanobacteria from water bodies by microfiltration technology is improved. Usually, a ship-borne mobile microfiltration treatment system is used, equipped with a single-drum rotary drum microfiltration machine. The filter screen is mainly cleaned by water backwashing, which increases the water content of the algae mud and the energy consumption of the subsequent treatment process. The amount of algae collected at a time is low, and the operation efficiency is still relatively low.

[0004] Therefore, there is a problem of low efficiency in cyanobacteria treatment. Summary of the invention

[0005] The present application provides a microfiltration algae removal device and a method of using the same, in order to solve the problem of low efficiency in treating blue algae.

[0006] In a first aspect, the present application provides a microfiltration algae removal device, comprising: a hull mechanism, a microfiltration mechanism, an air backwashing mechanism, and a dehydration and drying mechanism;

[0007] The hull mechanism comprises: a hull, a water intake mechanism and an algae water pool, wherein the water intake mechanism is arranged at the front end of the hull, and the algae water pool is arranged at the rear of the water intake mechanism, and the water intake mechanism is used to control the algae water to enter the algae water pool;

[0008] The microfiltration mechanism comprises: a first drum, a second drum, a driving assembly, at least one ultrasonic transducer, at least one algae water inlet and at least one outlet, the first drum and the second drum are both connected to the algae water inlet, and the algae water inlet is connected to the algae water pool, so that the algae water enters the first drum and the second drum through the algae water inlet;

[0009] The driving assembly is used to drive the first drum and the second drum to rotate to filter the algae water. The ultrasonic transducer is arranged at the lower ends of the first drum and the second drum. The ultrasonic transducer is used to irradiate the algae water with ultrasonic waves. The filtered algae water is discharged through the water outlet.

[0010] The first rotary drum and the second rotary drum both include: a plurality of filter discs and an algae mud collection tank, the plurality of filter discs of the first rotary drum and the plurality of filter discs of the second rotary drum are arranged in a staggered manner, and the algae mud collection tank is arranged inside the first rotary drum and the second rotary drum;

[0011] The gas backwashing mechanism includes a plurality of flushing components, and a flushing component is arranged on the upper end of each filter disc, and the flushing component is used to flush the algae mud attached to the filter disc by spraying compressed gas, so that the algae mud falls into the algae mud collection tank;

[0012] The dehydration and drying mechanism is communicated with the algae mud collecting tank, and is used for dehydrating and drying the algae mud.

[0013] In one possible design, the gas backwash mechanism further includes: at least one first motor and at least one first rack;

[0014] The flushing assembly includes: a first air disc, a second air disc, a first clamp, a second clamp, a first gear, a second gear and a first connecting rod, the first air disc and the second air disc are respectively arranged on both sides of the filter disc, a plurality of air holes are arranged on the first air disc and the second air disc facing the filter disc, the first clamp is arranged on the first air disc, the second clamp is arranged on the second air disc, and racks are arranged on the first clamp and the second clamp;

[0015] The first gear and the second gear are fixedly connected via a first connecting rod, and the first motor is used to drive the first rack to move laterally;

[0016] The first gear is meshed with the first rack, and the first clamp and the second clamp are both meshed with the second gear, so that the first clamp and the second clamp move toward each other, so that the first air disk and the second air disk fit the filter disk.

[0017] In a possible design, the hull structure further includes: an algae water delivery pipe, a water pump and an algae water suction pipe;

[0018] The algae water inlet is connected to the algae water delivery pipe, the water pump is connected to the algae water suction pipe and the algae water delivery pipe respectively, and the algae water suction pipe is connected to the algae water pool;

[0019] The dehydration and drying mechanism comprises: an algae mud conveying pipe, a dehydration dryer, an algae water reflux pipe and an algae residue collection bin, and the algae mud conveying pipe is connected to the algae mud collection tank;

[0020] The dehydration dryer is respectively connected to the algae mud conveying pipe, the algae water return pipe and the algae residue collection bin. The algae water return pipe is connected to the algae water suction pipe. The algae mud is conveyed to the dehydration dryer through the algae mud conveying pipe for dehydration and drying to form algae residue and treated algae water. The treated algae water enters the algae water suction pipe through the algae water return pipe to enter the microfiltration mechanism again.

[0021] In one possible design, the drive assembly includes: a second motor, a drive wheel, a third gear, and a fourth gear;

[0022] The second motor is used to drive the driving wheel to rotate;

[0023] The third gear is fixed on the first rotating drum, the fourth gear is fixed on the second rotating drum, and both the third gear and the fourth gear are meshed with the driving wheel.

[0024] In a possible design, the microfiltration mechanism further includes: an overflow plate;

[0025] The overflow plate is arranged between the first rotary drum, the second rotary drum and the water outlet to prolong the residence time of the filtered algae water.

[0026] In a possible design, the water inlet mechanism includes: a grille, an operating handle, and a second connecting rod;

[0027] An operating handle is arranged on the hull, and the operating handle is fixedly connected to a second connecting rod, and the second connecting rod is used for driving bars of the grille to rotate so as to facilitate the algae water to enter the algae water pool.

[0028] In a possible design, the water inlet mechanism further includes: a float assembly and a water retaining mechanism;

[0029] The float assembly is arranged on the water retaining mechanism, and the float assembly and the water retaining mechanism are arranged at the entrance of the algae water pool. The float assembly is used to drive the water retaining mechanism to rise to control the water layer thickness of the algae water entering the algae water pool.

[0030] In one possible design, the gas backwashing mechanism further includes: at least one gas delivery pipe, at least one one-way valve, a gas tank and a compressor;

[0031] The gas tank is connected to the first gas disk and the second gas disk through the gas transmission pipe, and the compressor is connected to the gas tank;

[0032] The gas delivery pipe is provided with a one-way valve to control the delivery of compressed gas to the first gas disk and the second gas disk.

[0033] In one possible design, the microfiltration algae removal device further includes: a photovoltaic mechanism;

[0034] The photovoltaic mechanism comprises: a first photovoltaic panel, a second photovoltaic panel and a storage battery. The first photovoltaic panel and the second photovoltaic panel are arranged on the top of the hull. The first photovoltaic panel and the second photovoltaic panel are both connected to the storage battery, and the storage battery is used for power supply.

[0035] In a possible design, the photovoltaic mechanism further includes: a third photovoltaic panel, a transmission connecting rod assembly, a rotating wheel and a third motor;

[0036] The third photovoltaic panel is connected to the battery, and the third photovoltaic panel is arranged below the first photovoltaic panel and the second photovoltaic panel. The first photovoltaic panel and the second photovoltaic panel are both hinged to one end of the transmission connecting rod assembly, and the other end of the transmission connecting rod assembly is hinged to the rotating wheel;

[0037] The third motor is used to drive the rotating wheel to rotate, and the rotating wheel is used to drive the transmission connecting rod assembly to rotate, so that the first photovoltaic panel and the second photovoltaic panel move in opposite directions, so that the first photovoltaic panel, the second photovoltaic panel and the third photovoltaic panel can receive light together.

[0038] In a second aspect, the present application provides a method for using a microfiltration algae removal device, which is used for the microfiltration algae removal device of any one of the first aspects, and the method comprises:

[0039] Control the algae water to enter the algae water pool through the water inlet mechanism;

[0040] The algae water in the algae water pool is filtered by the first drum and the second drum, and the filtered algae water is subjected to ultrasonic irradiation by the ultrasonic transducer;

[0041] The compressed gas is sprayed through the gas backwashing mechanism to wash the algae mud attached to the first drum and the second drum;

[0042] The algae mud is dehydrated and dried by the dehydration and drying mechanism to form algae residue and treated algae water.

[0043] The present application provides a microfiltration algae removal device and a method for using the same. The microfiltration algae removal device comprises: a hull mechanism, a microfiltration mechanism, an air backwashing mechanism and a dehydration and drying mechanism; the hull mechanism comprises: a hull, a water inlet mechanism and an algae water pool, the water inlet mechanism is arranged at the front end of the hull, the algae water pool is arranged behind the water inlet mechanism, and the water inlet mechanism is used to control the algae water to enter the algae water pool; the microfiltration mechanism comprises: a first drum, a second drum, a drive assembly, at least one ultrasonic transducer, at least one algae water inlet and at least one outlet, the first drum and the second drum are both connected to the algae water inlet, and the algae water inlet is connected to the algae water pool, so that the algae water can enter the first drum and the second drum through the algae water inlet; the drive assembly is used to drive the first drum and the second drum The drum rotates to filter the algae water. The ultrasonic transducer is arranged at the lower end of the first drum and the second drum. The ultrasonic transducer is used to perform ultrasonic irradiation on the algae water. The filtered algae water is discharged through the water outlet. The first drum and the second drum both include: a plurality of filter discs and an algae mud collection tank. The plurality of filter discs of the first drum and the plurality of filter discs of the second drum are arranged in an alternating manner. The algae mud collection tank is arranged inside the first drum and the second drum. The gas backwashing mechanism includes a plurality of flushing components. A flushing component is arranged at the upper end of each filter disc. The flushing component is used to flush the algae mud attached to the filter disc by spraying compressed gas so that the algae mud falls into the algae mud collection tank. The dehydration and drying mechanism is connected to the algae mud collection tank. The dehydration and drying mechanism is used to dehydrate and dry the algae mud. The present application uses a single motor to simultaneously drive dual drums, and the filter discs of the dual drums are staggeredly distributed, which fully utilizes the limited hull space and improves the original algae water treatment volume and treatment efficiency; the filter discs are flushed by an air backwashing mechanism, which reduces the water content of the algae mud, increases the algae residue load capacity for a single operation, and improves the efficiency of subsequent treatment processes; in summary, the problem of low efficiency in blue algae treatment is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 Schematic diagram of the structure of the microfiltration algae removal device provided in the embodiment of the present application Figure 1 ;

[0046] Figure 2 A schematic diagram of the structure of the microfiltration mechanism provided in the embodiment of the present application Figure 1 ;

[0047] Figure 3 A schematic diagram of the structure of the microfiltration mechanism provided in the embodiment of the present application Figure 2 ;

[0048] Figure 4 A schematic diagram of the structure of the filter disc provided in the embodiment of the present application;

[0049] Figure 5 A schematic diagram of the partial structure of the gas backwashing mechanism provided in the embodiment of the present application;

[0050] Figure 6 A schematic diagram of the structure of the water inlet mechanism provided in an embodiment of the present application;

[0051] Figure 7 Schematic diagram of the structure of the microfiltration algae removal device provided in the embodiment of the present application Figure 2 ;

[0052] Figure 8 A schematic diagram of the partial structure of the photovoltaic mechanism provided in an embodiment of the present application.

[0053] Reference numerals:

[0054] 100-hull mechanism;

[0055] 110-hull; 120-water intake mechanism; 130-algae water pool; 140-algae water delivery pipe; 150-water pump; 160-algae water suction pipe;

[0056] 121-grid; 122-operating handle; 123-second connecting rod; 124-floating ball assembly; 125-water retaining mechanism;

[0057] 200-microfiltration mechanism;

[0058] 210-first drum; 220-second drum; 230-driving assembly; 240-ultrasonic transducer; 250-algae water inlet; 260-water outlet; 270-filter plate; 280-algae mud collection tank; 290-overflow plate;

[0059] 231 - second motor; 232 - driving wheel; 233 - third gear; 234 - fourth gear;

[0060] 300-gas backwash mechanism;

[0061] 310-flushing assembly; 320-first motor; 330-first rack; 340-gas pipe; 350-check valve; 360-gas tank; 370-compressor;

[0062] 311-first gas disk; 312-second gas disk; 313-first clamp; 314-second clamp; 315-first gear; 316-second gear; 317-first connecting rod;

[0063] 400-dehydration and drying mechanism;

[0064] 410-algae mud conveying pipe; 420-dehydration dryer; 430-algae water return pipe; 440-algae residue collection bin;

[0065] 500- Photovoltaic institutions;

[0066] 510 - first photovoltaic panel; 520 - second photovoltaic panel; 540 - third photovoltaic panel; 550 - transmission connecting rod assembly; 560 - rotating wheel; 570 - third motor;

[0067] 551 - first transmission connecting rod; 552 - second transmission connecting rod; 553 - third transmission connecting rod; 554 - fixed connecting rod; 555 - first fixed shaft; 556 - second fixed shaft; 557 - third fixed shaft. DETAILED DESCRIPTION

[0068] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present application. Instead, they are only examples of devices and equipment consistent with some aspects of the embodiments of the present application.

[0069] In the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same functions and effects. For example, the first chip and the second chip are only used to distinguish different chips, and their order is not limited. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit them to be different.

[0070] It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way. In the embodiments of the present application, "at least one" refers to one or more, and "more than one" refers to two or more.

[0071] It should be noted that the "at..." in the embodiments of the present application can be the instant when a certain situation occurs, or can be a period of time after a certain situation occurs, and the embodiments of the present application do not specifically limit this. In addition, the microfiltration algae removal device provided in the embodiments of the present application is only used as an example, and the microfiltration algae removal device can also include more or less content.

[0072] As shown in the background technology, in the prior art, the efficiency of removing blue algae from water bodies by microfiltration technology is improved. Usually, a ship-borne mobile microfiltration treatment system is adopted, which is equipped with a single-drum microfiltration machine. The filter screen is mainly cleaned by water backwashing, which increases the water content of the algae mud and the energy consumption of the subsequent treatment process. The amount of algae collected at a single time is low, and the operating efficiency is still relatively low.

[0073] Therefore, the low efficiency of cyanobacteria treatment is a problem that needs to be urgently solved in this application.

[0074] Based on this, an embodiment of the present application provides a microfiltration algae removal device and a method of using the same. The microfiltration algae removal device includes: a hull mechanism 100, a microfiltration mechanism 200, an air backwashing mechanism 300 and a dehydration and drying mechanism 400; the hull mechanism 100 includes: a hull 110, a water inlet mechanism 120 and an algae pool 130, the water inlet mechanism 120 is arranged at the front end of the hull 110, and the algae pool 130 is arranged behind the water inlet mechanism 120, and the water inlet mechanism 120 is used to control the algae water to enter the algae pool 130. The microfiltration mechanism 200 includes: a first drum 210, a second drum 220, a driving assembly 230, at least one ultrasonic transducer 240, at least one algae water inlet 250 and at least one outlet 260. The first drum 210 and the second drum 220 are both connected to the algae water inlet 250, and the algae water inlet 250 is connected to the algae water pool 130, so that the algae water can enter the first drum 210 and the second drum 220 through the algae water inlet 250. The driving assembly 230 is used to drive the first drum 210 and the second drum 220. A drum 210 and a second drum 220 rotate to filter the algae water. An ultrasonic transducer 240 is disposed at the lower end of the first drum 210 and the second drum 220. The ultrasonic transducer 240 is used to irradiate the algae water with ultrasonic waves. The filtered algae water is discharged through a water outlet 260. The first drum 210 and the second drum 220 both include: a plurality of filter discs 270 and an algae mud collection tank 280. The plurality of filter discs 270 of the first drum 210 and the plurality of filter discs 270 of the second drum 220 are arranged in a staggered manner. The algae mud collection tank 280 is arranged inside the first drum 210 and the second drum 220; the gas backwashing mechanism 300 includes a plurality of flushing components 310, and each filter disc 270 is provided with a flushing component 310 at the upper end thereof, and the flushing component 310 is used to flush the algae mud attached to the filter disc 270 by spraying compressed gas, so that the algae mud falls into the algae mud collection tank 280; the dehydration and drying mechanism 400 is connected with the algae mud collection tank 280, and the dehydration and drying mechanism 400 is used to dehydrate and dry the algae mud. It can be used in the field of algae water treatment technology, and aims to solve the above technical problems of the prior art.

[0075] Figure 1 Schematic diagram of the structure of the microfiltration algae removal device provided in the embodiment of the present application Figure 1 ; Figure 2 A schematic diagram of the structure of the microfiltration mechanism provided in the embodiment of the present application Figure 1 ; Figure 3 A schematic diagram of the structure of the microfiltration mechanism provided in the embodiment of the present application Figure 2 . Figure 2 exist Figure 1 On the basis of, the structure of the microfiltration mechanism 200 of the microfiltration algae removal device is shown; Figure 3 exist Figure 2 On the basis of, the structure of the microfiltration mechanism 200 is further demonstrated.

[0076] like Figure 1 , Figure 2 and Figure 3 As shown, the embodiment of the present application provides a microfiltration algae removal device, comprising: a hull mechanism 100, a microfiltration mechanism 200, an air backwashing mechanism 300 and a dehydration and drying mechanism 400;

[0077] The hull mechanism 100 includes: a hull 110, a water intake mechanism 120 and an algae water pool 130, wherein the water intake mechanism 120 is arranged at the front end of the hull 110, and the algae water pool 130 is arranged at the rear of the water intake mechanism 120, and the water intake mechanism 120 is used to control the algae water to enter the algae water pool 130;

[0078] The microfiltration mechanism 200 includes: a first drum 210, a second drum 220, a driving assembly 230, at least one ultrasonic transducer 240, at least one algae water inlet 250 and at least one outlet 260. The first drum 210 and the second drum 220 are both connected to the algae water inlet 250, and the algae water inlet 250 is connected to the algae water pool 130, so that the algae water can enter the first drum 210 and the second drum 220 through the algae water inlet 250.

[0079] The driving assembly 230 is used to drive the first drum 210 and the second drum 220 to rotate to filter the algae water. The ultrasonic transducer 240 is disposed at the lower ends of the first drum 210 and the second drum 220. The ultrasonic transducer 240 is used to irradiate the algae water with ultrasonic waves. The filtered algae water is discharged through the water outlet 260.

[0080] The first drum 210 and the second drum 220 both include: a plurality of filter discs 270 and an algae mud collection tank 280, the plurality of filter discs 270 of the first drum 210 and the plurality of filter discs 270 of the second drum 220 are arranged in a staggered manner, and the algae mud collection tank 280 is arranged inside the first drum 210 and the second drum 220;

[0081] The gas backwashing mechanism 300 includes a plurality of flushing components 310. A flushing component 310 is disposed on the upper end of each filter disc 270. The flushing component 310 is used to flush the algae mud attached to the filter disc 270 by spraying compressed gas, so that the algae mud falls into the algae mud collection tank 280.

[0082] The dehydration and drying mechanism 400 is communicated with the algae mud collecting tank 280 , and the dehydration and drying mechanism 400 is used to dehydrate and dry the algae mud.

[0083] Exemplarily, one or more ultrasonic transducers 240, algae water inlets 250 and outlets 260 may be provided. Preferably, the number of algae water inlets 250 and outlets 260 may be the same as the number of drums, which may be two, in one-to-one correspondence for easy management.

[0084] Exemplarily, the plurality of ultrasonic transducers 240 may be evenly distributed at the lower ends of the first drum 210 and the second drum 220 to evenly enhance the filtering effect. Meanwhile, some of the plurality of ultrasonic transducers 240 may be activated according to actual conditions.

[0085] Specifically, the entire device is based on the hull 110, and the control module in the control cabinet controls the operation of all equipment. A propeller is provided at the rear end of the hull 110. Algae water enters the algae water pool 130 through the water inlet mechanism 120 to wait for treatment. When the algae water is treated, the algae water enters the first drum 210 and the second drum 220 through the algae water inlet 250. The driving component 230 drives the first drum 210 and the second drum 220 to rotate and start filtering the algae water. At the same time, the ultrasonic transducer 240 irradiates the algae water with ultrasonic waves to enhance the filtering effect. The filtered algae water is discharged through the water outlet 260, and the algae mud containing algae residue in the algae water remains in the first drum 210 and the second drum 220. As the first drum 210 and the second drum 220 rotate, a part of the algae mud falls into the algae mud collection tank 280. After a certain period of time, the flushing component 310 sprays compressed gas to flush the algae mud attached to the filter disc 270, causing the algae mud to fall into the algae mud collection tank 280. The flushing time interval can be set as needed, and this application does not limit this.

[0086] Exemplarily, the time interval of the air backwashing can be set according to the algae cell concentration of the water body. If the algae cell concentration of the water body is high, the microporous screen of the filter disc 270 is easily blocked in a short time, and the time interval of the air backwashing is shortened, and vice versa.

[0087] The multiple filter discs 270 of the first drum 210 and the multiple filter discs 270 of the second drum 220 are arranged in a staggered manner, making full use of the limited space of the hull 110. The algae water is processed simultaneously by the two drums, thereby improving the processing volume and processing efficiency of the original algae water. The gas backwashing mechanism 300 uses compressed gas to flush the algae mud attached to the filter discs 270, thereby reducing the water content of the algae mud, increasing the algae residue load in a single operation, and improving the efficiency of the subsequent processing process. The ultrasonic transducer 240 further removes algae and other pollutants in the water body to enhance the treatment effect.

[0088] Figure 4 A schematic diagram of the structure of the filter disc provided in the embodiment of the present application; Figure 5 A schematic diagram of the partial structure of the gas backwashing mechanism provided in an embodiment of the present application.

[0089] In one possible design, see Figure 4 and Figure 5 , the gas backwashing mechanism 300 further includes: at least one first motor 320 and at least one first rack 330;

[0090] The flushing assembly 310 includes: a first air disc 311, a second air disc 312, a first clamp 313, a second clamp 314, a first gear 315, a second gear 316 and a first connecting rod 317. The first air disc 311 and the second air disc 312 are respectively arranged on both sides of the filter disc 270. A plurality of air holes are arranged on the first air disc 311 and the second air disc 312 facing the filter disc 270. The first clamp 313 is arranged on the first air disc 311, the second clamp 314 is arranged on the second air disc 312, and racks are arranged on the first clamp 313 and the second clamp 314.

[0091] The first gear 315 and the second gear 316 are fixedly connected via a first connecting rod 317, and the first motor 320 is used to drive the first rack 330 to move laterally;

[0092] The first gear 315 is meshed with the first rack 330 , and the first clamp 313 and the second clamp 314 are both meshed with the second gear 316 , so that the first clamp 313 and the second clamp 314 move toward each other, so that the first gas disk 311 and the second gas disk 312 fit the filter disk 270 .

[0093] Exemplarily, the number of the first motor 320 and the first rack 330 can be one or more, and there is no limitation here. Preferably, the number of the first motor 320 and the first rack 330 corresponds to the number of the drums, both of which are two. Each first motor 320 drives the corresponding first rack 330 to move laterally, and then drives the corresponding flushing assembly 310 on the drum to move, which is easy to manage.

[0094] Exemplarily, the flushing area of ​​the first gas disk 311 and the second gas disk 312 may be one quarter of the area of ​​the filter disk 270 , or may be a larger or smaller area.

[0095] Specifically, both sides of the filter disc 270 are wrapped with microporous screens, and the filter disc 270 is cleaned by the air backwashing mechanism 300. Taking a filter disc 270 of the second drum 220 as an example, the first air disc 311 and the second air disc 312 are respectively arranged on both sides of the filter disc 270. In the air backwashing state, the first motor 320 drives the first rack 330 to move horizontally to the left, the first gear 315 rotates counterclockwise, and the second gear 316 rotates counterclockwise at the same time, and the first clamp 313 and the second clamp 314 move towards each other, driving the first air disc 311 and the second air disc 312 to move towards the direction of the filter disc 270 respectively, and gradually clamping the air pores and micropores. The screen fits tightly and then backwashes; when the timed backwashing is completed, the first motor 320 drives the first rack 330 to move horizontally to the right, the first gear 315 rotates clockwise, the second gear 316 rotates clockwise at the same time, the first clamp 313 and the second clamp 314 move in opposite directions, driving the first gas disk 311 and the second gas disk 312 to move away from the filter disk 270 respectively, gradually loosening, the pores are separated from the microporous screen, the first drum 210 and the second drum 220 rotate, and the next gas backwashing is carried out.

[0096] The gas backwashing mechanism 300 cleans the filter disc 270 by compressed gas. The filter discs 270 of the first drum 210 and the second drum 220 can be cleaned at the same time. A large cleaning area can be cleaned at one time. The operation is scheduled, simple and efficient, which improves the cleaning efficiency and reduces the water content of the algae mud.

[0097] In a possible design, the hull structure 100 further includes: an algae water delivery pipe 140, a water pump 150 and an algae water suction pipe 160;

[0098] The algae water inlet 250 is connected to the algae water delivery pipe 140, the water pump 150 is connected to the algae water suction pipe 160 and the algae water delivery pipe 140 respectively, and the algae water suction pipe 160 is connected to the algae water pool 130;

[0099] The dehydration and drying mechanism 400 includes: an algae mud conveying pipe 410, a dehydration dryer 420, an algae water return pipe 430 and an algae residue collection bin 440, and the algae mud conveying pipe 410 is connected to the algae mud collection tank 280;

[0100] The dehydration dryer 420 is respectively connected to the algae mud conveying pipe 410, the algae water return pipe 430 and the algae residue collection bin 440. The algae water return pipe 430 is connected to the algae water suction pipe 160. The algae mud is conveyed to the dehydration dryer 420 through the algae mud conveying pipe 410 for dehydration and drying to form algae residue and treated algae water. The treated algae water enters the algae water suction pipe 160 through the algae water return pipe 430 so as to enter the microfiltration mechanism 200 again.

[0101] Exemplarily, the water pump 150 may be a centrifugal pump, or other types of water pumps such as an axial flow pump or a mixed flow pump.

[0102] Specifically, the algae water suction pipe 160 extends into the algae water pool 130, the water pump 150 is connected to the algae water suction pipe 160, the upper end of the water pump 150 is the algae water delivery pipe 140, and the algae water delivery pipe 140 is connected to the algae water inlet 250. The algae water passes through the algae water suction pipe 160, the water pump 150, the algae water suction pipe 160 and the algae water inlet 250 in sequence, enters the microfiltration mechanism 200 for filtration, and the algae mud is collected in the algae mud collection tank 280. The algae mud is transported to the dehydration dryer 420 through the algae mud delivery pipe 410, dehydrated and dried to form algae residue and treated algae water. The treated algae water enters the algae water suction pipe 160 through the algae water reflux pipe 430, so as to enter the microfiltration mechanism 200 again; the algae residue is transported to the algae residue collection bin 440 through the algae residue outlet, and is temporarily stored in the algae residue collection bin 440, waiting for further processing after the ship docks.

[0103] Exemplarily, the algae mud collecting tanks 280 inside the first drum 210 and the second drum 220 may be connected to the algae mud conveying pipe 410 through corresponding algae mud outlets, and then connected to the dehydration dryer 420 .

[0104] The concentrated algae liquid produced by dehydration and drying enters the rotary drum through the algae water reflux pipe 430 for re-filtration treatment, which further reduces the algae content in the algae water and improves the treatment efficiency.

[0105] In one possible design, see Figure 2 , the driving assembly 230 includes: a second motor 231, a driving wheel 232, a third gear 233 and a fourth gear 234;

[0106] The second motor 231 is used to drive the driving wheel 232 to rotate;

[0107] The third gear 233 is fixed on the first rotating drum 210 , and the fourth gear 234 is fixed on the second rotating drum 220 . Both the third gear 233 and the fourth gear 234 are meshed with the driving wheel 232 .

[0108] Specifically, the third gear 233 and the fourth gear 234 are fixed to the tail ends of the first drum 210 and the second drum 220, respectively, and the driving wheel 232 is located between the third gear 233 and the fourth gear 234. The second motor 231 drives the driving wheel 232 to rotate, driving the third gear 233 and the fourth gear 234 to rotate, and then drives the first drum 210 and the second drum 220 to rotate, and starts filtering the algae water, thereby improving the motor utilization rate and ensuring the synchronous operation of the drums.

[0109] In one possible design, see Figure 2 , the microfiltration mechanism 200 further includes: an overflow plate 290;

[0110] The overflow plate 290 is disposed between the first drum 210 , the second drum 220 and the water outlet 260 to extend the residence time of the filtered algae water.

[0111] Specifically, the first drum 210 and the second drum 220 are located on one side of the overflow plate 290 , and the water outlet 260 is located on the other side of the overflow plate 290 , which can extend the residence time of the filtered algae water to facilitate ultrasonic irradiation by the ultrasonic transducer 240 and ensure the treatment effect of the ultrasonic transducer 240 .

[0112] Figure 6 A schematic diagram of the structure of the water inlet mechanism provided in an embodiment of the present application.

[0113] In one possible design, see Figure 6 The water inlet mechanism 120 includes: a grille 121, an operating handle 122 and a second connecting rod 123;

[0114] The operating handle 122 is disposed on the hull 110 , and the operating handle 122 is fixedly connected to the second connecting rod 123 . The second connecting rod 123 is used to drive the bars of the grille 121 to rotate so that the algae water can enter the algae water pool 130 .

[0115] Specifically, when performing algae removal operations, the operating handle 122 at the bow is pulled to drive the second connecting rod 123 to drive the bars of the grille 121 to rotate, thereby opening the grille 121, and the algae water enters the algae water pool 130 through the grille 121. The algae water can be directly controlled to enter through the operating handle 122, which is simple to control and easy to operate.

[0116] In one possible design, see Figure 6 The water inlet mechanism 120 further includes: a float assembly 124 and a water retaining mechanism 125;

[0117] The float assembly 124 is arranged on the water retaining mechanism 125 . The float assembly 124 and the water retaining mechanism 125 are arranged at the entrance of the algae water pool 130 . The float assembly 124 is used to drive the water retaining mechanism 125 to rise to control the water layer thickness of the algae water entering the algae water pool 130 .

[0118] Exemplarily, the float assembly 124 may include two or more floats, and the water retaining mechanism 125 may be a baffle or a waterproof cloth, etc.

[0119] Specifically, by controlling the rise of the float and then the rise of the water retaining mechanism 125, the degree of rise of the water retaining mechanism 125 can be determined according to the algae content of the water layer, so that the water layer with high algae content above the float assembly 124 and the water retaining mechanism 125 can enter the algae water pool 130, thereby improving the algae water treatment efficiency.

[0120] In a possible design, the gas backwashing mechanism 300 further includes: at least one gas delivery pipe 340, at least one one-way valve 350, a gas tank 360 and a compressor 370;

[0121] The gas tank 360 is connected to the first gas disk 311 and the second gas disk 312 through the gas delivery pipe 340, and the compressor 370 is connected to the gas tank 360;

[0122] The gas delivery pipe 340 is provided with a one-way valve 350 to control the delivery of compressed gas to the first gas disk 311 and the second gas disk 312 .

[0123] Exemplarily, the number of the gas pipes 340 and the one-way valves 350 can be one or more, and there is no limitation here. Preferably, the number of the gas pipes 340 and the one-way valves 350 corresponds to the number of drums, which are two each. Each gas pipe 340 is provided with a one-way valve 350 to provide compressed gas to the gas disk on the corresponding drum for easy management.

[0124] Specifically, a compressor check valve is provided between the compressor 370 and the gas tank 360, and the compressor 370 stores the compressed gas in the gas tank 360 through the compressor check valve, so that the compressed gas maintains a certain high pressure state. When performing gas backwashing, the check valve 350 of the gas pipeline 340 is opened, and the high-pressure gas enters the vent pipe of each gas disk through the gas pipeline 340, and then is ejected at high speed from the air holes of the gas disk to blow off the algae mud adhered to the microporous screen. A support platform is provided above the water pump 150, and the compressor 370 can be fixed on the support platform.

[0125] Figure 7 Schematic diagram of the structure of the microfiltration algae removal device provided in the embodiment of the present application Figure 2 ; Figure 8 A schematic diagram of the partial structure of the photovoltaic mechanism provided in an embodiment of the present application. Figure 7 exist Figure 1 Based on the photovoltaic mechanism of microfiltration algae removal device 500, Figure 8 exist Figure 7 On this basis, the structure of the photovoltaic mechanism 500 is further demonstrated.

[0126] In one possible design, see Figure 7 and Figure 8 , the microfiltration algae removal device further comprises: a photovoltaic mechanism 500;

[0127] The photovoltaic mechanism 500 includes: a first photovoltaic panel 510, a second photovoltaic panel 520 and a battery. The first photovoltaic panel 510 and the second photovoltaic panel 520 are arranged on the top of the hull 110. The first photovoltaic panel 510 and the second photovoltaic panel 520 are both connected to the battery, and the battery is used for power supply.

[0128] Specifically, the energy source of the hull 110 and the onboard equipment comes from batteries. The batteries can be charged through photovoltaic panels, which reduces the number of docking charging times and increases the single operation time.

[0129] In one possible design, see Figure 8 , the photovoltaic mechanism 500 further includes: a third photovoltaic panel 540, a transmission connecting rod assembly 550, a rotating wheel 560 and a third motor 570;

[0130] The third photovoltaic panel 540 is connected to the battery, and the third photovoltaic panel 540 is arranged below the first photovoltaic panel 510 and the second photovoltaic panel 520. The first photovoltaic panel 510 and the second photovoltaic panel 520 are both hinged to one end of the transmission connecting rod assembly 550, and the other end of the transmission connecting rod assembly 550 is hinged to the rotating wheel 560;

[0131] The third motor 570 is used to drive the rotating wheel 560 to rotate, and the rotating wheel 560 is used to drive the transmission connecting rod assembly 550 to rotate, so that the first photovoltaic panel 510 and the second photovoltaic panel 520 move in opposite directions, so that the first photovoltaic panel 510, the second photovoltaic panel 520 and the third photovoltaic panel 540 can receive light together.

[0132] Specifically, the transmission link assembly 550 includes: two first transmission links 551, two second transmission links 552, two third transmission links 553, two fixed links 554, two first fixed shafts 555, two second fixed shafts 556 and two third fixed shafts 557;

[0133] One end of the first transmission link 551 is hinged to the rotating wheel 560, and the other end is provided with a first fixed shaft 555, and the middle part is provided with a second fixed shaft 556. The first fixed shaft 555 is connected to the third fixed shaft 557 through a fixed link 554 to fix the third fixed shaft 557;

[0134] One end of the second transmission link 552 is hinged to the second fixed shaft 556 , and the other end is hinged to the first photovoltaic panel 510 or the second photovoltaic panel 520 ; one end of the third transmission link 553 is hinged to the third fixed shaft 557 , and the other end is hinged to the first photovoltaic panel 510 or the second photovoltaic panel 520 .

[0135] Taking the first photovoltaic panel 510 as an example, the third motor 570 drives the rotating wheel 560 to rotate clockwise, driving the first transmission link 551 to move, and the second transmission link 552 connected to the first transmission link 551 rotates around the second fixed axis 556, so that the first photovoltaic panel 510 moves away from the rotating wheel 560. At the same time, the third transmission link 553 rotates around the third fixed axis 557 to support the first photovoltaic panel 510. Similarly, the second photovoltaic panel 520 also moves away from the rotating wheel 560 at the same time, the first photovoltaic panel 510 and the second photovoltaic panel 520 move in reverse, and the third photovoltaic panel 540 arranged below the first photovoltaic panel 510 and the second photovoltaic panel 520 receives light. The three photovoltaic panels work together, increasing the amount of collected electricity and further improving the single operation time.

[0136] For example, the third photovoltaic panel 540 can be turned on and off according to the battery power or light conditions. For example, when the battery power is higher than 70% and the light conditions are good on a sunny day, the first photovoltaic panel 510 and the second photovoltaic panel 520 are enabled; when the battery power is lower than 70% or the light conditions are poor on a cloudy day, the first photovoltaic panel 510, the second photovoltaic panel 520 and the third photovoltaic panel 540 are enabled.

[0137] Exemplarily, the battery can be arranged inside the cabin, and the photovoltaic panel is a part of the roof and supported by the photovoltaic bracket. Baffles are arranged below the two ends of the roof to fix the transmission connecting rod assembly 550.

[0138] For example, when an algae bloom breaks out somewhere, blue algae accumulate on the surface of the lake, the starter runs on the water surface, the algae-rich water on the surface continuously enters the algae pool 130 through the grille 121, the water pump 150 is started, and the original algae water enters the first drum 210 and the second drum 220 of the double-drum microfilter from the algae pool 130, and is filtered by the drum rotation, and the algae mud remains in the drum. The filtered algae water is further purified by the ultrasonic transducer 240, wherein the residual algae cells, pollutants, etc. are metabolized and then discharged in the overflow. The filter disc 270 is backwashed with air at regular intervals, and the algae mud falls into the algae mud collection tank 280, and is sucked into the dehydration dryer 420 through the algae mud delivery pipe 410 for further processing, and algae residue with a lower water content is obtained, which is temporarily stored in the algae residue collection bin 440 and waits for further processing at the shore. The concentrated algae liquid produced by dehydration and drying enters the drum through the algae water reflux pipe 430 for re-filtration and processing. The photovoltaic mechanism 500 provides energy for the operation of the hull 110 and the onboard equipment. The control modules for startup, operation and setting of all equipment in the device are integrated in the control cabinet, and the operation is fully automatic.

[0139] The entire device uses an integrated treatment system of grid water inlet-surface control-drum microfiltration-ultrasonic purification-gas backwashing-dehydration and drying-algae liquid reflux-algae residue recovery. It has a clear structure, is environmentally friendly and efficient, and is highly economical. It uses a ship-borne movable microfiltration treatment system, which can meet the needs of mobile operations in rivers and lakes, and play a role in removing blue algae and purifying water quality. It uses adaptive photovoltaic energy supply technology, which can charge slowly when the power is high and charge quickly when the power is low, thereby improving energy supply efficiency, increasing battery life, and extending the battery life.

[0140] The embodiment of the present application provides a method for using a microfiltration algae removal device, which is used for any of the above-mentioned microfiltration algae removal devices. The execution subject of the method is a control module, and the method includes:

[0141] Control the algae water to enter the algae water pool through the water inlet mechanism;

[0142] The algae water in the algae water pool is filtered by the first drum and the second drum, and the filtered algae water is subjected to ultrasonic irradiation by the ultrasonic transducer;

[0143] The compressed gas is sprayed through the gas backwashing mechanism to wash the algae mud attached to the first drum and the second drum;

[0144] The algae mud is dehydrated and dried by the dehydration and drying mechanism to form algae residue and treated algae water.

[0145] Among them, the specific structure and use method of the microfiltration algae removal device have been described in detail in the above embodiments, and its technical effects are similar and will not be repeated here.

[0146] So far, the technical solutions of the embodiments of the present application have been described in conjunction with the preferred implementation modes shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific implementation modes. The above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A microfiltration algae removal device, characterized in that: include: A hull mechanism (100), a microfiltration mechanism (200), an air backwashing mechanism (300), and a dehydration and drying mechanism (400); The hull mechanism (100) comprises: a hull (110), a water intake mechanism (120) and an algae water pool (130), wherein the water intake mechanism (120) is arranged at the front end of the hull (110), and the algae water pool (130) is arranged behind the water intake mechanism (120), and the water intake mechanism (120) is used to control the algae water to enter the algae water pool (130); The microfiltration mechanism (200) comprises: a first rotating drum (210), a second rotating drum (220), a driving assembly (230), at least one ultrasonic transducer (240), at least one algae water inlet (250) and at least one outlet (260); the first rotating drum (210) and the second rotating drum (220) are both in communication with the algae water inlet (250); the algae water inlet (250) is in communication with the algae water pool (130), so that the algae water can enter the first rotating drum (210) and the second rotating drum (220) through the algae water inlet (250); The driving assembly (230) is used to drive the first rotating drum (210) and the second rotating drum (220) to rotate so as to filter the algae water. The ultrasonic transducer (240) is arranged at the lower ends of the first rotating drum (210) and the second rotating drum (220). The ultrasonic transducer (240) is used to perform ultrasonic irradiation on the algae water. The filtered algae water is discharged through the water outlet (260). The first rotary drum (210) and the second rotary drum (220) both comprise: a plurality of filter discs (270) and an algae mud collection tank (280); the plurality of filter discs (270) of the first rotary drum (210) and the plurality of filter discs (270) of the second rotary drum (220) are arranged in a staggered manner; and the algae mud collection tank (280) is arranged inside the first rotary drum (210) and the second rotary drum (220); The gas backwashing mechanism (300) comprises a plurality of flushing components (310), one flushing component (310) being arranged at the upper end of each filter disc (270), the flushing component (310) being used to flush the algae mud attached to the filter disc (270) by spraying compressed gas, so that the algae mud falls into the algae mud collection tank (280); The dehydration and drying mechanism (400) is in communication with the algae mud collection tank (280), and the dehydration and drying mechanism (400) is used to dehydrate and dry the algae mud; The gas backwashing mechanism (300) further comprises: at least one first motor (320) and at least one first rack (330); The flushing assembly (310) comprises: a first air disk (311), a second air disk (312), a first clamp (313), a second clamp (314), a first gear (315), a second gear (316) and a first connecting rod (317); the first air disk (311) and the second air disk (312) are respectively arranged on both sides of the filter disk (270); a plurality of air holes are arranged on one side of the first air disk (311) and the second air disk (312) facing the filter disk (270); the first clamp (313) is arranged on the first air disk (311), the second clamp (314) is arranged on the second air disk (312), and racks are arranged on both the first clamp (313) and the second clamp (314); The first gear (315) and the second gear (316) are fixedly connected via the first connecting rod (317), and the first motor (320) is used to drive the first rack (330) to move laterally; The first gear (315) meshes with the first rack (330), and the first clamp (313) and the second clamp (314) both mesh with the second gear (316), so that the first clamp (313) and the second clamp (314) move toward each other, thereby making the first gas disk (311) and the second gas disk (312) fit the filter disk (270).

2. The microfiltration algae removal device according to claim 1, characterized in that: The hull structure (100) further comprises: an algae water delivery pipe (140), a water pump (150) and an algae water suction pipe (160); The algae water inlet (250) is in communication with the algae water delivery pipe (140), the water pump (150) is connected to the algae water suction pipe (160) and the algae water delivery pipe (140) respectively, and the algae water suction pipe (160) is in communication with the algae water pool (130); The dehydration and drying mechanism (400) comprises: an algae mud conveying pipe (410), a dehydration dryer (420), an algae water return pipe (430) and an algae residue collection bin (440); the algae mud conveying pipe (410) is in communication with the algae mud collection tank (280); The dehydration dryer (420) is respectively connected to the algae mud conveying pipe (410), the algae water return pipe (430) and the algae residue collection bin (440); the algae water return pipe (430) is connected to the algae water suction pipe (160); the algae mud is conveyed to the dehydration dryer (420) through the algae mud conveying pipe (410) for dehydration and drying to form algae residue and treated algae water; the treated algae water enters the algae water suction pipe (160) through the algae water return pipe (430) so as to enter the microfiltration mechanism (200) again.

3. The microfiltration algae removal device according to claim 2, characterized in that: The driving assembly (230) comprises: a second motor (231), a driving wheel (232), a third gear (233) and a fourth gear (234); The second motor (231) is used to drive the driving wheel (232) to rotate; The third gear (233) is fixed on the first rotating drum (210), the fourth gear (234) is fixed on the second rotating drum (220), and both the third gear (233) and the fourth gear (234) are meshed with the driving wheel (232).

4. The microfiltration algae removal device according to claim 3, characterized in that: The microfiltration mechanism (200) further includes: an overflow plate (290); The overflow plate (290) is arranged between the first rotating drum (210), the second rotating drum (220) and the water outlet (260) to extend the residence time of the filtered algae water.

5. The microfiltration algae removal device according to claim 2, characterized in that: The water inlet mechanism (120) comprises: a grille (121), an operating handle (122) and a second connecting rod (123); The operating handle (122) is disposed on the hull (110), and the operating handle (122) is fixedly connected to the second connecting rod (123), and the second connecting rod (123) is used to drive the bars of the grille (121) to rotate, so as to facilitate the algae water to enter the algae water pool (130).

6. The microfiltration algae removal device according to claim 5, characterized in that: The water inlet mechanism (120) further comprises: a float assembly (124) and a water retaining mechanism (125); The float assembly (124) is arranged on the water retaining mechanism (125); the float assembly (124) and the water retaining mechanism (125) are arranged at the entrance of the algae water pool (130); the float assembly (124) is used to drive the water retaining mechanism (125) to rise, so as to control the thickness of the water layer of the algae water entering the algae water pool (130).

7. The microfiltration algae removal device according to claim 6, characterized in that: The gas backwashing mechanism (300) further comprises: at least one gas transmission pipe (340), at least one one-way valve (350), a gas tank (360) and a compressor (370); The gas tank (360) is in communication with the first gas disk (311) and the second gas disk (312) via the gas delivery pipe (340), and the compressor (370) is in communication with the gas tank (360); The gas delivery pipe (340) is provided with the one-way valve (350) to control the delivery of compressed gas to the first gas disk (311) and the second gas disk (312).

8. The microfiltration algae removal device according to any one of claims 1 to 7, characterized in that: Also includes: Photovoltaic mechanism (500); The photovoltaic mechanism (500) comprises: a first photovoltaic panel (510), a second photovoltaic panel (520) and a storage battery; the first photovoltaic panel (510) and the second photovoltaic panel (520) are arranged at the top of the hull (110); the first photovoltaic panel (510) and the second photovoltaic panel (520) are both connected to the storage battery; and the storage battery is used for power supply.

9. The microfiltration algae removal device according to claim 8, characterized in that: The photovoltaic mechanism (500) further comprises: a third photovoltaic panel (540), a transmission connecting rod assembly (550), a rotating wheel (560) and a third motor (570); The third photovoltaic panel (540) is connected to the storage battery, and the third photovoltaic panel (540) is arranged below the first photovoltaic panel (510) and the second photovoltaic panel (520), and the first photovoltaic panel (510) and the second photovoltaic panel (520) are both hinged to one end of the transmission connecting rod assembly (550), and the other end of the transmission connecting rod assembly (550) is hinged to the rotating wheel (560); The third motor (570) is used to drive the rotating wheel (560) to rotate, and the rotating wheel (560) is used to drive the transmission connecting rod assembly (550) to rotate, so that the first photovoltaic panel (510) and the second photovoltaic panel (520) move in opposite directions, so that the first photovoltaic panel (510), the second photovoltaic panel (520) and the third photovoltaic panel (540) can receive light together.

10. A method for using a microfiltration algae removal device, characterized in that: The method is used for the microfiltration algae removal device according to any one of claims 1 to 9, and the method comprises: Control the algae water to enter the algae water pool through the water inlet mechanism; filtering the algae water in the algae water pool through a first drum and a second drum, and irradiating the filtered algae water with ultrasonic waves through an ultrasonic transducer; The compressed gas is sprayed through the gas backwashing mechanism to wash the algae mud attached to the first drum and the second drum; The algae mud is dehydrated and dried by a dehydration and drying mechanism to form algae residue and treated algae water.

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