Duckweed collecting device for slow-flow river channel

Abstract

The duckweed collecting device comprises a floating body, a compression assembly, a filtering assembly, a collecting assembly and a control system, the compression assembly comprises a compression filtering cylinder, a compression piston and a first power part, and the filtering assembly comprises a water filtering tank body, a filtering part and a draining pump used for draining water of the water filtering tank body; the collecting assembly comprises an algae conveying part communicated with the algae outlet and a storage bag matched with the algae conveying part for storage, the algae conveying part is used for conveying algae in the compression filter cylinder into the storage bag, a mixture of floating algae and liquid enters the compression filter cylinder through the algae liquid inlet and is filtered, and then the mixture is compressed through the compression piston; floating algae in a compressed state are stored through the storage bag, the storage bag is inflated through the inflation assembly, then the storage bag is sealed and cut off through the sealing assembly, and the inflated storage bag floats on the water surface, so that workers can fish the algae conveniently under the condition that the work of the algae removing equipment is not affected.

Description

Technical Field

[0001] The invention relates to the field of floating algae removal equipment, in particular to a duckweed collecting device used in slow-flowing rivers. Background Art

[0002] There are usually floating plants and algae on the surface of the river. Due to excess nutrients, increased temperature or increased light in the river water, the floating plants and algae in the water body multiply in large numbers. Among the floating algae, cyanobacteria grow particularly rapidly. When cyanobacteria multiply in large numbers, algal blooms are easily formed on the water surface. The cyanobacterial toxins produced by the metabolism of toxic algae are released into the water body, poisoning aquatic organisms and thus endangering human health. The duckweed on the water surface will block the water body, causing the organisms below the water body to not get sufficient sunlight, resulting in the death of underwater plants and the reduction of oxygen content in the water and the death of fish, thereby affecting the water body.

[0003] In the process of algae control, there are generally biological control, physical control and chemical control. Physical control methods generally remove algae by salvaging. The existing methods for salvaging floating algae generally use manual or automatic salvaging equipment for salvage. After the collection is completed, traditional floating algae collection equipment needs to be manually driven to the floating algae collection device or on the shore, and the floating algae in the floating algae collection device are collected and brought ashore with a hook rake or a scoop net. During the collection process, the floating algae collection device cannot work in the center of the river where there are more floating algae, thereby reducing the overall efficiency. Summary of the invention

[0004] The present invention aims to solve the problem that the existing algae removal equipment still needs to dock to remove the algae on the equipment after salvaging, which reduces the efficiency of cleaning the floating algae on the equipment. A duckweed collection device for slow-flowing rivers is provided.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions: a duckweed collection device for slow-flowing rivers, comprising a floating body, a compression assembly arranged on the floating body, a filtering assembly matched with the compression assembly, a collecting assembly matched with the compression assembly, and a control system,

[0006] The compression assembly includes a compression filter cylinder, a compression piston and a power member 1, wherein the power member 1 is used to drive the compression piston to reciprocate in the compression filter cylinder, and the compression filter cylinder is provided with an algae liquid inlet, a drainage port and an algae body outlet.

[0007] The filter assembly includes a water filter box connected to a drain outlet, a filter element arranged at the drain outlet, and a drainage pump for draining water from the water filter box. The filter element is used to filter algae and liquid.

[0008] The collecting assembly includes an algae transporting member connected to the algae outlet and a storage bag that cooperates with the algae transporting member for storage. The algae transporting member is used to transport the algae in the compression filter cylinder to the storage bag.

[0009] The control system includes a liquid inlet monitoring module, and the liquid inlet monitoring module includes:

[0010] A flow monitoring unit, which is arranged at the drain outlet to monitor the flow value of the drain outlet and generate a real-time flow value;

[0011] A water immersion detection unit, which is arranged at the algae liquid inlet and is used to detect the liquid inlet state of the algae liquid inlet, and generates a liquid inlet signal when the algae liquid inlet is in a liquid inlet group state;

[0012] The first analysis unit is used to analyze the liquid inflow state of the compression filter cylinder. When the compression filter cylinder is in the liquid inflow state and the value of the flow monitoring unit is in a stable range, the first analysis unit generates an algae filtering state signal. When the compression filter cylinder is in the liquid inflow state and the value of the flow monitoring unit is in a continuous decrease within a certain period or the real-time flow value is lower than a preset value, an algae full state signal is generated;

[0013] The first control unit, when receiving the algae full state signal, is used to control the power member to drive the compression piston to move, and the compression piston enters the compression filter cylinder to compress the algae in the compression filter cylinder.

[0014] By adopting the above technical scheme, after the collection of traditional floating algae collection equipment is completed, it is necessary to manually drive a boat to the floating algae collection device or the shore, and use a hook rake or a scoop net to collect the floating algae in the floating algae collection device and bring it ashore. During the collection process, the floating algae collection device cannot work in the center of the river where there are more floating algae, thereby reducing the overall efficiency. Through this scheme, the mixture of floating algae and liquid enters the compression filter cylinder through the algae liquid inlet, and the liquid enters the water filter box after passing through the filter net under the action of gravity. The floating algae is blocked by the filter element and remains in the compression filter cylinder. The liquid in the water filter box is discharged through the drainage pump. When the algae liquid inlet is in the water intake state, but the flow monitoring subunit configured in the water filter box monitors that the water flow entering the drain port is reduced, it means that the algae in the compression filter cylinder is accumulated too much and forms a blockage. At this time, the compression component squeezes the algae in the compression filter cylinder. In the process of squeezing the algae, not only the volume of the algae is compressed, but also most of the water mixed in the algae is removed, and the compressed algae is discharged from the compression filter cylinder through the algae transmission element.

[0015] The present invention is further configured as follows: the collecting component is cooperated with a sealing component, the sealing component is used to seal the storage bag, the storage bag adopts a breakpoint-free continuous garbage bag, the sealing component includes a hot melt sealing roller and a cutting knife, the hot melt sealing roller can partially hot melt the breakpoint-free continuous garbage bag to form a seal, and the cutting knife is used to cut the seal of the breakpoint-free continuous garbage bag.

[0016] By adopting the above technical solution, how to increase the continuous working time, thereby solving the problem of work efficiency, through the combination of continuous garbage bags and sealing components, the storage space can be increased and the time for manual bagging can be reduced.

[0017] The present invention is further configured as follows: the collecting component is configured with an inflation component for inflating the storage bag, the inflation component includes an elastic airbag, an air inlet opened in the elastic airbag and an air outlet pipe connected to the elastic airbag, the air outlet pipe is connected to the storage bag, when the elastic airbag is in an extruded state, the storage bag is inflated, the reciprocating motion of the compression piston puts the elastic airbag in a reciprocating extrusion state, the inflation component is configured with a sealing component, the sealing component includes a sealing baffle for sealing the algae transmission component and a power component three for driving the sealing baffle to move.

[0018] By adopting the above technical solution, an elastic inflation component is provided to utilize the reciprocating motion of the piston to directly inflate the storage bag, so that after the sealing is completed, the storage bag can be directly floated on the water surface. The salvage personnel only need to salvage the storage bags floating on the water surface uniformly, which will not affect the work of the algae removal equipment.

[0019] The present invention is further configured as follows: the floating body is provided with a water entry ramp, the storage bag is placed on the water entry ramp, the water entry ramp is arranged at one end away from the sealing component and is inclined toward the water surface, and when the cutting knife cuts the sealed storage bag, the storage bag can be slid along the water entry ramp.

[0020] By adopting the above technical solution, after the storage bag is sealed, it is cut by a cutting knife. After the storage bag with both ends sealed is cut, it can directly enter the water along the water inlet ramp. The subsequent operators only need to salvage the storage bag containing algae floating on the water surface, and the algae removal equipment can continue to work.

[0021] The present invention is further configured as follows: the sealing baffle is provided with a sealing cutting groove, a cutting edge is provided along a side of one side of the sealing baffle, and a sealing ring is provided in the sealing cutting groove. When the power component drives the sealing baffle to cooperate with the sealing cutting groove, the sealing ring and the side of the sealing baffle away from the cutting edge form a sealing setting, and the sealing cutting groove is provided at any end of the algae transmission component or in the middle position of the algae transmission component.

[0022] By adopting the above technical scheme, the algae with roots can be cut off by the cutting blade through the sealed cutting groove of the fixed seat, and the sealing section provided in the sealed cutting groove is abutted against the sealed cutting groove to complete the sealing of the algae inlet end of the storage bag, making it convenient for the inflation component to inflate the storage bag.

[0023] The present invention is further configured as follows: the compression filter cylinder is also provided with an algae removal component, the algae removal component includes a pusher and a second power component for driving the pusher to move, the second power component is used to drive the algae in the compression filter cylinder to enter the algae transmission component.

[0024] By adopting the above technical solution, the algae in the compression filter tank can be further cleaned through the algae removal component.

[0025] The present invention is further configured as follows: the push member is arranged on one side of the filter element, and a cleaning brush is arranged on the side of the push member facing the filter element and abutting against the filter element.

[0026] By adopting the above technical solution, the pusher moves under the action of the second power member to deliver the algae in the squeezed state into the algae body conveying member, and the filter element can be repeatedly cleaned by a cleaning brush.

[0027] The present invention is further configured as follows: the drainage pump is provided with a drainage pipe, the floating body is provided with a movable component, the movable component includes a drainage compartment connected to the drainage pipe and a plurality of drainage valves arranged in the drainage compartment, the plurality of drainage valves include a plurality of directional control valves and a pressure relief control valve, a plurality of the directional control valves are arranged in a circular array on the floating body, a plurality of directional control valves are arranged in different jet directions, and the pressure relief control valve is arranged underwater and the jet direction is arranged in a direction away from the water surface.

[0028] By adopting the above technical solution, the direction is controlled by the drain valve, and the drain pump can continue to be used.

[0029] The present invention is further configured as follows: the control system further includes a direction control module, and the direction control module includes:

[0030] Image acquisition equipment is used to collect 360-degree images around the floating body and generate 360-degree panoramic images.

[0031] Image analysis unit, used to analyze the 360-degree panoramic image and generate the algae aggregation direction.

[0032] The second control unit is connected to a plurality of directional control valves, opens a directional control valve in the opposite direction to the algae aggregation direction, and closes the remaining directional control valves.

[0033] By adopting the above technical solution, the image analysis unit analyzes the aggregation direction of the algae, and the second control unit controls the drain valve, thereby increasing the efficiency of algae removal.

[0034] The present invention is further configured as follows: the floating body is provided with a liquid guiding groove for guiding the algae liquid to enter, the compression assembly is provided with a plurality of algae liquid inlets of the plurality of compression filter cylinders are all arranged in the liquid guiding groove.

[0035] By adopting the above technical solution, the liquid-conducting grooves can be used to accelerate the cleaning efficiency in all directions through a plurality of compression components. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of a duckweed collection device for a slow-flowing river in an embodiment;

[0037] Figure 2 Schematic diagram of the cooperation between the compression component and the water filter component in the embodiment;

[0038] Figure 3 is a cross-sectional view of the combination of the compression filter cylinder and the algae removal component in the embodiment;

[0039] Figure 4 is a schematic diagram of the structure of the mobile component in the embodiment;

[0040] Figure 5 Schematic diagram of the control system structure in the embodiment.

[0041] The parts indicated by the numbers in the above figures are as follows: 1. floating body; 11. liquid guide groove; 12. reset groove; 13. water inlet ramp; 2. compression assembly; 21. compression filter cylinder; 211. inlet section; 212. compression section; 213. algae liquid inlet; 214. drain outlet; 215. algae outlet; 22. compression piston; 23. power part 1; 3. filter assembly; 31. water filter box; 32. filter element; 4. collection assembly; 41. algae Body transmission part; 42, storage bag; 43, fixed sleeve; 44, pressing sheet; 5, algae drainage component; 51, push piece; 52, power component 2; 53, cleaning brush; 6, moving component; 61, drainage compartment; 62, directional control valve; 63, pressure relief control valve; 7, sealing component; 71, hot melt sealing pressure rod; 72, cutting knife; 8, inflation component; 81, elastic airbag; 82, sealing baffle; 83, sealing cutting groove; 84, cutting blade; 85, sealing ring. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0043] Example:

[0044] A duckweed collecting device for slow-flowing rivers, first see Figure 1 , comprising a floating body 1 with a cavity structure for floating on the water surface, a compression component 2 arranged on the floating body 1, a filtering component 3 matched with the compression component 2, a collecting component 4 matched with the compression component 2 and a control system,

[0045] See also Figure 2 and Figure 3 The compression assembly 2 includes a compression filter cylinder 21, a compression piston 22 and a power member 23. The compression filter cylinder 21 is a cavity structure with an upper opening, including an introduction section 211 in a circular cavity and a compression section 212 in a square cavity. The square shape of the compression section 212 is inscribed with the circle of the introduction section 211. The compression piston 22 is a square structure matched with the compression section 212. The step surface formed by the shape difference between the introduction section 211 and the compression section 212 is inclined and transitionally arranged. The compression filter cylinder 21 is provided with an algae liquid inlet 213, a drain port 214 and an algae body outlet. 215, the opening section of the inlet section 211 of the compression filter cylinder 21 is arranged upward and is the algae liquid inlet 213, the drain port 214 is arranged at the end of the compression section 212 away from the inlet section 211, the algae body outlet 215 is arranged on the side of the compression section 212 and is arranged close to the drain port 214, a circle of liquid guide grooves 11 is arranged on the outer side of the floating body 1, and the liquid guide grooves 11 are slightly lower than the horizontal plane, and a plurality of compression components 2 are arranged, and the algae liquid inlets 213 of the plurality of compression filter cylinders 21 are arranged in the liquid guide grooves 11, and a plurality of compression components 2 are evenly spaced and arranged on the outer circle of the floating body 1.

[0046] See also Figure 2 and Figure 3The filter assembly 3 includes a water filter box 31, a filter element 32 and a drainage pump. The cavity structure of the water filter box 31 is arranged below the compression filter cylinder 21. The water filter box 31 is provided with an opening connected to the drainage port 214 of the compression filter cylinder 21. Since the compression assembly 2 is provided with a plurality of, the filter water box is provided with a plurality of openings which are respectively sealed and clamped with the drainage port 214 of the compression filter cylinder 21. The filter element 32 is clamped with the drainage port 214 of the compression filter cylinder 21 and the filter element 32 is detachably connected with the drainage port 214. The filter element 32 in this embodiment includes a fixing ring and a multi-layer metal filter screen fixedly clamped with the fixing ring. The mesh number of the multi-layer metal filter screen is increased in sequence from the compression filter cylinder 21 to the water filter box 31. The drainage pump is provided with a suction pipe and a drainage pipe. The suction pipe It is connected to the water filter box 31, and the drainage pump is used to drain the water from the water filter box 31, so that the algae-liquid mixture entering the compression filter cylinder 21 is filtered in the compression filter cylinder 21 under the action of the filter element 32, and the liquid can enter the water filter box 31 from the drain port 214. The water filter box 31 is pumped by the drainage pump to control the water filter box 31 to always be in a state where water can enter. When the algae in the compression filter cylinder 21 pile up to a certain extent, the power part 23 drives the compression piston 22 to move. The compression piston 22 enters the compression section 212 under the action of the power part 23 and compresses the algae in the compression filter cylinder 21 and further squeezes water. The water filter box 31 is provided with a liquid level monitor, and the start and stop and drainage speed of the drainage pump can be controlled by the liquid level detector.

[0047] See also Figure 2 and Figure 3 The power piece 23 in this embodiment adopts an electric push rod, but it is not limited to the power piece and the following power pieces all adopt electric push rods. Hydraulic cylinders, air cylinders or linear modules can also be used. The power piece 23 is fixedly installed on the floating body 1. In this embodiment, the floating body 1 adopts a plastic structure with a cavity structure to facilitate floating on the water. The compression piston 22 is threadedly connected to the moving end of the power piece 23 by a screw. The floating body 1 is provided with a reset groove 12 that cooperates with the compression piston 22. The reset groove 12 is arranged opposite to the compression filter cylinder 21 and the two are arranged at an interval. When the power piece 23 is in a retracted state, the compression piston 22 is located in the reset groove 12. When the compression piston 22 performs a compression operation, the compression piston 22 moves out of the reset groove 12 and enters the compression filter cylinder 21. After the compression operation of the compression piston 22 is completed, the power piece 23 drives the compression piston 22 to move out of the compression filter cylinder 21 and return to the reset groove 12.

[0048] See also Figure 2 and Figure 3The collecting component 4 is mainly used to collect the algae blocks in a compressed state. The collecting component 4 includes an algae transmission component 41 connected to the algae outlet 215 and a storage bag 42 for storing in cooperation with the algae transmission component 41. The collecting component 4 is provided with an algae discharge component 5, which is installed in the compression filter cylinder 21. The algae discharge component 5 includes a pusher 51 and a power component 2 52 for driving the pusher 51 to move. The power component 2 52 is used to drive the pusher 51 to push the algae in a compressed state into the algae transmission component 41. The algae transmission component 41 in this embodiment is provided by a transmission pipeline. The power component 2 52 in this embodiment is an electric push rod. The pusher 51 is controlled by the power component 2. The second power piece 52 is slidably arranged in the compression section 212 of the compression filter cylinder 21, the pushing piece 51 is arranged opposite to the pipe mouth of the algae transmission piece 41, and a cleaning brush 53 is arranged on the side of the pushing piece 51 facing the filter element 32, and the cleaning brush 53 can abut against the filter element 32. When the pushing piece 51 is controlled by the movement of the second power piece 52, the cleaning brush 53 cleans the surface of the filter element 32. The moving direction of the compression piston 22 driven by the power piece 1 23 is perpendicular to the moving direction of the pushing piece 51 driven by the second power piece 52. When the second power piece 52 drives the pushing piece 51 to move, the power piece 1 23 drives the compression piston 22 to be staggered with the pushing piece 51.

[0049] See also Figure 4 The floating body 1 is provided with a moving assembly 6 for driving the floating body 1 to move. The moving assembly 6 includes a drainage compartment 61 and a plurality of drainage valves arranged in the drainage compartment 61. The drainage pump is provided with a water inlet pipe and a drainage pipe. The water inlet pipe of the drainage pump is connected to the water filter box 31 for draining the water filter box 31. The drainage pipe is connected to the drainage compartment 61. The plurality of drainage valves include a plurality of directional control valves 62 and a pressure relief control valve 63. The plurality of directional control valves 62 are arranged in an annular array on the outer ring of the floating body 1 and are all arranged at the underwater position of the floating body 1. At least one pressure relief control valve 63 is provided. In this embodiment, two pressure relief control valves are provided, one of which is perpendicular to the water surface and sprays toward the bottom of the water, and the other is arranged on the part of the floating body 1 that is not immersed in the water and sprays toward the distant water surface. When the drainage pump is in working state, the pressure relief control valve 63 is normally open. A liquid inlet valve is provided in the drainage compartment 61. The liquid inlet valve is used to actively control the water level in the drainage compartment, thereby controlling the buoyancy of the drainage compartment, so that the liquid guide groove 11 is always slightly lower than the horizontal plane.

[0050] The control system includes a liquid inlet detection module and a direction control module. The liquid inlet monitoring module includes a flow monitoring unit, a water immersion detection unit, a first analysis unit and a first control unit.

[0051] The flow detection unit adopts a flow meter disposed at the drain port 214 to monitor the change of the flow value of the drain port 214, and generates a real-time flow value according to the flow value. The water immersion detection unit is disposed at the algae liquid inlet 213 to detect the liquid inlet state of the algae liquid inlet 213. When the algae liquid inlet 213 is in the liquid inlet group state, a liquid inlet signal is generated. When no liquid enters the compression filter cylinder 21, no liquid inlet signal is generated. The first analysis unit is used to analyze the liquid inlet state of the compression filter cylinder 21. When the compression filter cylinder 21 is in the liquid inlet state and the value of the flow monitoring unit is in a stable range, the first analysis unit generates an algae filtration state signal. When the compression filter cylinder 21 is in the liquid inlet state and the value of the flow monitoring unit is in a constant range within a certain period, the first analysis unit generates a filter algae state signal. When the flow rate continues to decrease or the real-time flow value is lower than the preset value, an algae full state signal is generated. When the first control unit receives the algae full signal, it controls the power component 23 to drive the compression piston 22 out of the reset groove 12, and drives the compression piston 22 to enter the compression filter cylinder 21, to compress the algae in the compression filter cylinder 21 and further squeeze out the water. When the compression filter cylinder 21 is compressed into place, the power component 2 52 drives the push component 51 to move, and pushes the algae block in the compressed state in the compression filter cylinder 21 into the algae transmission component 41, to complete the emptying of the algae in the compression filter cylinder 21. When the compression piston 22 is emptied, the power component 23 drives the compression piston 22 to reset and return to the reset groove 12, and the power component 2 52 drives the push component 51 to reset.

[0052] The direction control module includes an image acquisition device, an image analysis unit, and a direction control unit. The image acquisition device is used to perform 360-degree directional image acquisition around the floating body 1 to generate a 360-degree image. The image analysis unit is used to analyze the 360-degree panoramic image to generate the algae aggregation direction. The second control unit is connected to a plurality of directional control valves 62. According to the algae aggregation direction, the directional control valve 62 in the opposite direction is opened, and the remaining directional control valves 62 are closed. By opening the directional control valve 62 in the opposite direction, a jet is generated, thereby causing the floating body 1 to move toward the algae aggregation direction.

[0053] See also Figure 1 The collecting assembly 4 also includes a fixing sleeve 43. The storage bag 42 adopts a continuous garbage bag without breakpoints. One end of the storage bag 42 is rolled up and the end is sleeved on the fixing sleeve 43. The other end of the storage bag 42 extends out of the fixing sleeve 43 and the part is used to store algae. The fixing sleeve 43 is provided with pressing sheets 44 at intervals. The storage bag 42 is arranged between the fixing sleeve 43 and the pressing sheets 44. The pressing sheets 44 are provided with a power piece 4 that drives it to move. The power piece 4 can drive the pressing sheet 44 to abut against the outer side of the storage bag 42. When the pressing sheet 44 is controlled by the power piece 4 to abut against the storage bag 42, it has a fixing effect on the storage bag 42. When the pressing sheet 44 is controlled by the power piece 4 to be separated from the storage bag 42, it does not form a force on the storage bag 42, which is convenient for the storage bag 42 to extend. The power piece 4 is fixedly connected to the floating body 1, combined with Figure 1The collecting component 4 is provided with a sealing component 7 for sealing the continuous storage bag 42 without breakpoints. The sealing component 7 is arranged on the floating body 1 and includes a hot-melt sealing roller 71 and a cutting knife 72. Two hot-melt sealing rollers 71 are provided. The two hot-melt sealing rollers 71 are respectively located on both sides of the storage bag 42. The two hot-melt sealing rollers 71 are provided with a power member 5 for driving them to move. The hot-melt sealing rollers 71 include an electric pressing rod and a heating layer arranged on the surface of the electric pressing roller. When the two hot-melt sealing rollers 71 are controlled by the power member 5 to abut against both sides of the storage bag 42 at the same time and are in a mutually squeezed state, the electric force of the hot-melt sealing rollers 71 The heat layer is heated to a certain temperature, and the electric pressure roller can rotate to extend the sealing length while heating and sealing. The cutting knife 72 is equipped with a power piece six that drives it to move. The cutting knife 72 can be set to cut at the middle position of the seal of the storage bag 42. The advantage of the cutting position being in the middle of the seal is that one end of the next bag of storage bag 42 is sealed at the same time. Power pieces four, five and six all use electric push rods. When the cutting knife 72 completes the cutting, the hot melt sealing pressure roller 71 stops heating. After the heating layer cools down, the electric pressure roller continues to rotate to drive the storage bag 42 to move a distance, which is convenient for the subsequent storage of compressed algae.

[0054] See also Figure 2 The collecting component 4 is provided with an inflation component 8 for inflating the storage bag 42. The inflation component 8 can adopt a press-type inflation pump. In the present embodiment, the inflation component 8 comprises an elastic airbag 81. The elastic airbag 81 is provided with an air inlet and an air outlet pipe connected thereto. The air outlet pipe is connected to the inner circle of the fixing sleeve 43. Both the air inlet and the air outlet pipe are provided with a one-way valve. The elastic airbag 81 is annularly arranged in the reset groove 12. When the power member 23 drives the compression piston 22 to move toward the compression filter cylinder 21, the elastic airbag 81 is restored and the gas enters from the air inlet. When the power member 23 drives the compression piston 22 to move toward the reset groove 12, the compression piston 22 squeezes the elastic airbag 81. The gas in the elastic airbag 81 enters the storage bag 42 through the inflation pump, forming an inflated state of the storage bag 42. Each time the compression piston 22 reciprocates, an inflation operation is formed on the storage bag 42. The reciprocating motion of the compression piston 22 reciprocates and squeezes the elastic airbag 81.

[0055] The air outlet pipe is connected to air outlet branch pipe one and air outlet branch pipe two, and the air outlet pipe is also connected to a two-position three-way solenoid valve for switching to air outlet branch pipe one or air outlet branch pipe two. The air outlet branch pipe one is connected to the storage bag 42, and the air outlet branch pipe is connected to the drainage compartment 61, thereby completing the pressurization of the drainage compartment 61, which can effectively increase the jet pressure of the directional control valve 62.

[0056] See also Figure 3The inflatable component 8 is equipped with a sealing component, which includes a sealing baffle 82 for sealing the algae transporting member 41 and a power member 86 for driving the sealing baffle 82 to move. In this embodiment, the sealing component is arranged at the end where the algae transporting member 41 is connected to the compression filter cylinder 21. The advantage of being arranged at this end is that it can be sealed and can also prevent the algae in the algae transporting member 41 from diverting. However, it is not limited to that the sealing baffle 82 is arranged at this end of the algae transporting member 41, and can also be arranged at the end of the algae transporting member 41 facing the storage bag 42 or the algae transporting member 41. At any position in the middle of the transmission member 41, a sealing baffle 82 is provided with a sealing cutting groove 83, and the sealing cutting groove 83 is opened on the algae transmission member 41. A cutting edge 84 is provided along the side of one side of the sealing baffle 82, and a sealing groove is provided on the side wall of the sealing cutting groove 83. A sealing ring 85 is provided in the sealing groove. When the power member 86 drives the sealing baffle 82 to cooperate with the sealing cutting groove 83, the sealing ring 85 and the side of the sealing baffle 82 away from the cutting edge 84 form a sealing setting, thereby facilitating the inflation component 8 to complete the inflation of the storage bag 42.

[0057] See also Figure 1 A water entry ramp 13 is provided above the floating body 1, and the algae storage part of the storage bag 42 is placed on the water entry ramp 13. The water entry ramp 13 is arranged away from the end of the sealing component 7 and is inclined toward the water surface. Since a fixing sleeve 43 and a pressing sheet 44 are provided, one end of the storage bag 42 can be fixed to prevent the storage bag 42 from falling into the water. When the storage bag 42 is sealed, it is cut by a cutting knife 72. After the storage bag 42 with both ends sealed is cut, it can directly enter the water along the water entry ramp 13. Subsequent operators only need to salvage the storage bag 42 containing algae floating on the water surface, and the algae removal equipment can continue to work.

Claims

1. A duckweed collecting device for a slow-flowing river, characterized in that: The invention comprises a floating body (1), a compression assembly (2) arranged on the floating body (1), a filtering assembly (3) matched with the compression assembly (2), a collecting assembly (4) matched with the compression assembly (2), and a control system. The compression assembly (2) comprises a compression filter cylinder (21), a compression piston (22) and a power piece (23), wherein the power piece (23) is used to drive the compression piston (22) to reciprocate in the compression filter cylinder (21), and the compression filter cylinder (21) is provided with an algae liquid inlet (213), a drainage outlet (214) and an algae body outlet (215); The filter assembly (3) comprises a water filter box (31) connected to a drain outlet (214), a filter element (32) arranged at the drain outlet (214), and a drainage pump for draining water from the water filter box (31); the filter element (32) is used to filter algae and liquid; The collecting assembly (4) comprises an algae transporting member (41) in communication with the algae outlet (215) and a storage bag (42) that cooperates with the algae transporting member (41) for storage, wherein the algae transporting member (41) is used to transport the algae in the compression filter cylinder (21) to the storage bag (42); The compression filter cylinder (21) is also provided with an algae discharge assembly (5), the algae discharge assembly (5) comprising a pusher (51) and a second power member (52) for driving the pusher (51) to move, the second power member (52) being used to drive the algae in the compression filter cylinder (21) to enter the algae transmission member (41); The control system includes a liquid inlet monitoring module, and the liquid inlet monitoring module includes: A flow monitoring unit, the flow monitoring unit being arranged at the drain outlet (214) for monitoring the flow value of the drain outlet (214) and generating a real-time flow value; A water immersion detection unit, the water immersion detection unit being arranged at the algae liquid inlet (213) and used for detecting the liquid inlet state of the algae liquid inlet (213), and generating a liquid inlet signal when the algae liquid inlet (213) is in a liquid inlet group state; A first analysis unit is used to analyze the liquid inflow state of the compression filter cylinder (21); when the compression filter cylinder (21) is in the liquid inflow state and the value of the flow monitoring unit is in a stable range, the first analysis unit generates an algae filtering state signal; when the compression filter cylinder (21) is in the liquid inflow state and the value of the flow monitoring unit is in a state of continuous decrease within a certain period or the real-time flow value is lower than a preset value, an algae full state signal is generated; The first control unit is used to control the power component 1 (23) to drive the compression piston (22) to move when receiving the algae full state signal, and the compression piston (22) enters the compression filter cylinder (21) to compress the algae in the compression filter cylinder (21).

2. A duckweed collecting device for slow-flowing rivers according to claim 1, characterized in that: The collecting component (4) is provided with a sealing component (7) for sealing the storage bag (42). The storage bag (42) is a continuous garbage bag without breakpoints. The sealing component (7) comprises a hot-melt sealing roller (71) and a cutting knife (72). The hot-melt sealing roller (71) can partially hot-melt the continuous garbage bag without breakpoints to form a seal, and the cutting knife (72) is used to cut the sealed portion of the storage bag (42).

3. A duckweed collecting device for slow-flowing rivers according to claim 2, characterized in that: The collecting component (4) is provided with an inflating component (8), the inflating component (8) being used to inflate the storage bag (42), the inflating component (8) comprising an elastic airbag (81), an air inlet opened in the elastic airbag (81) and an air outlet pipe connected to the elastic airbag (81), the air outlet pipe being communicated with the storage bag (42), when the elastic airbag (81) is in an extruded state, the storage bag (42) is in an inflated state, the compression piston (22) reciprocates to put the elastic airbag (81) in a reciprocating extrusion state, the inflating component (8) is provided with a sealing component, the sealing component comprising a sealing baffle (82) for sealing the algae transport component (41) and a power component three (86) for driving the sealing baffle (82) to move.

4. The duckweed collecting device for slow-flowing rivers according to claim 2, characterized in that: The floating body (1) is provided with a water entry ramp (13), and the storage bag (42) is placed on the water entry ramp (13). The end of the water entry ramp (13) away from the sealing component (7) is arranged to be inclined toward the water surface. When the cutting knife (72) cuts the sealed storage bag (42), the storage bag (42) can be slidably arranged along the water entry ramp (13).

5. The duckweed collecting device for slow-flowing rivers according to claim 3, characterized in that: The algae transport component (41) is provided with a sealing cutting groove (83) that cooperates with the sealing baffle (82); a cutting edge (84) is provided along a side edge of one side of the sealing baffle (82); the sealing cutting groove (83) is provided with a sealing ring (85); when the power component (86) drives the sealing baffle (82) to cooperate with the sealing cutting groove (83), the sealing ring (85) and the side of the sealing baffle (82) away from the cutting edge (84) form a sealing arrangement; the sealing cutting groove (83) is provided at any end of the algae transport component (41) or at a middle position of the algae transport component (41).

6. The duckweed collecting device for slow-flowing rivers according to claim 1, characterized in that: The push member (51) is arranged on one side of the filter element (32); a cleaning brush (53) is arranged on the side of the push member (51) facing the filter element (32); and the cleaning brush (53) is arranged in contact with the filter element (32).

7. The duckweed collecting device for slow-flowing rivers according to claim 1, characterized in that: The drainage pump is provided with a drainage pipe, and the floating body (1) is provided with a movable assembly (6). The movable assembly (6) comprises a drainage chamber (61) connected to the drainage pipe and a plurality of drainage valves arranged in the drainage chamber (61). The plurality of drainage valves comprises a plurality of directional control valves (62) and a pressure relief control valve (63). The plurality of directional control valves (62) are arranged in a circular array on the floating body (1). The plurality of directional control valves (62) are arranged in different jet directions. The pressure relief control valve (63) is arranged underwater and the jet direction is arranged in a direction away from the water surface.

8. The duckweed collecting device for slow-flowing rivers according to claim 7, characterized in that: The control system further includes a direction control module, which includes: The image acquisition device is used to acquire 360-degree images around the floating body (1) to generate a 360-degree panoramic image. Image analysis unit, used to analyze the 360-degree panoramic image and generate the algae aggregation direction. The second control unit is connected to a plurality of directional control valves (62), and opens the directional control valve (62) in the opposite direction to the algae aggregation direction according to the algae aggregation direction, and closes the remaining directional control valves (62).

9. A duckweed collecting device for slow-flowing rivers according to claims 3 and 7, characterized in that: The air outlet pipe is connected to air outlet branch pipe 1, air outlet branch pipe 2 and a solenoid valve, wherein the solenoid valve is used to switch between the air outlet pipe and air outlet branch pipe 1 or air outlet branch pipe 2, the air outlet branch pipe 1 is connected to the storage bag (42), and the air outlet branch pipe is connected to the drainage cabin (61).

10. The duckweed collecting device for slow-flowing rivers according to claim 1, characterized in that: The floating body (1) is provided with a liquid guiding groove (11) for guiding the algae liquid to enter, and the compression assembly (2) is provided with a plurality of compression filter cylinders (21), and the algae liquid inlets of the plurality of compression filter cylinders (21) are all arranged in the liquid guiding groove (11).

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