JP3911617B2 - Algae harvester - Google Patents

Description

[0001]
[Field of the Invention]
By automatically harvesting seaweeds grown in aquaculture nets installed in parallel with the flat seabed, water surface, and similar aquaculture equipment, and algae from rivers and lakes among natural seaweeds and cultured seaweeds Furthermore, economic effects can be obtained through automation and labor saving, such as labor saving, release from danger of diving work by humans, elimination of biased manual labor posture by human work.
[0002]
[Prior art]
1. Harvesting with a long handle sickle from the top of the boat.
2. Direct diving with diving equipment.
3. The planting net is loaded directly onto a large ship for land treatment.
4). A test algae mowing boat in a lake.
[Problems to be solved by the invention]
All of the conventional techniques require a lot of labor, and the amount of processing is not large. Currently, algae is mainly used for food, industrial supplies, and pharmaceuticals, but it is necessary to provide a mass processing ship for providing these at a lower cost and utilizing algae as energy.
[0004]
[Means for Solving the Problems]
1. Basically unattended.
2. The main movement is based on a computer, and a radio control system is used for correction.
3. Fine adjustment is controlled by various markers , magnetism, light, high frequency, ultrasonic wave, sound, current, etc., and control by the transmitter / receiver.
4). The mower has several propulsion units with forward / reverse and marker tracking control functions.
5. The mowing unit has a plurality of blades having functions such as rotation, reciprocation, jet, and the like, a conveyor for transporting the harvested algae onto the deck of the mowing boat, a jet, and a composite device thereof.
6). The mowing boat performs forward, backward, and left / right correction according to the ability of the mowing unit while faithfully protecting the predetermined position and the predetermined locus of the algal planting net. The mowing unit has a vertical movement mechanism for correcting variation in the installation depth of the algal planting net from the surface of the water and a marker following reception function, and harvests while keeping the distance from the algal planting net accurate.
[0005]
[Action]
This will be described with reference to FIG.
The mowing vessel body 1 has a necessary power source and a controller facility. The planting net 14 is provided with a positioning marker 7 in which a cutting position is determined in advance. When approaching the set position from the command ship, the mode is switched to automatic mode. When the mode is switched to the automatic mode, the receiver 6 attached to the lower part of the descending depth adjusting column 4 senses and localizes the marker 7 of the planting net 14. Further, the horizontal control of the mowing boat is controlled by driving a plurality of marker following propellers by the receiver 17 of the mowing boat detecting the marker 16 attached to the sea surface or the planting net.
When the mowing boat is ready for movement, the cutting blade 8 rotates through the mowing motor 5 blade drive chain 10 to cut algae. The cut algae are loaded onto a transport ship 15 moored in advance by a transport bucket conveyor 11 provided with suction by a jet provided at the rear.
9 is a motor for driving a conveyor bucket conveyor, 13 is an auxiliary transport chute, 12 is a mooring part for a transport ship, 2 is a propeller for forward and backward movement, and 3 is a propeller for following a marker .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The required seaweed amount is 39,400 t per day, modeled on 1 million kw / hour power generation. This is an unmanned mowing boat with a width of 20 m, a mowing speed of 13.4 m per minute, and an actual mowing time of 22 hours. The required number of ships is 5.1, but when we include the seaweed growth period, sea conditions, etc., the actual harvest period is about 5.25 months per year. Become.
The growth of seaweed will be different depending on the sea temperature, ocean current, latitude, nutrients, and other correlations.
[0007]
【The invention's effect】
1. By unmanned algae harvesting, it is possible to work while maintaining a large amount of human safety.
2. Significant economic efficiency is expected due to unmanned operation.
3. Unattended and automatic harvesting of algae facilitates accurate planning of harvesting.
[Brief description of the drawings]
[Fig. 1] Side view of mowing boat [Fig. 2] Plan view of mowing boat [Explanation of symbols]
1 Mowing vessel body 2 Propeller forward and backward 3 Marker tracking propeller 4 Depth adjustment pillar 5 Depth adjustment pillar 5 Cutting motor 6 Receiver 7 Marker 8 Cutting part 9 Conveyor motor 10 Chain 11 Transport bucket 12 Transport ship mooring part 13 Chute 14 Planting network 15 transport ship 16 left and right marker 17 receiver left and right 18 depth adjustment drive motor 19 upper cutting blade 20 middle cutting blade 21 lower cutting blade

Claims (1)

A marker installed on the pre-laid algae planting net and a sensor that detects the marker installed on the sea surface are attached to the algae automatic mowing boat, and propelled along the route determined based on the marker installed on the sea surface. It has an automatic control device and is equipped with a vertical movement mechanism that moves the reaping device up and down by detecting the installation depth of the net from the water surface of the algae planting net based on a marker installed on the algal planting net surface. Unmanned algae mowing boat .

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