JPS6248328A - Ocean breeding plant - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an aquaculture plant that can efficiently cultivate fish and shellfish using a cage device that can be used even in the open ocean where waves and currents are strong.

(Prior art) A cage system that surrounds the sea with a net and is used for cultivating, capturing and housing fish and shellfish inside the net is generally intended for use in sea areas with little influence from waves, such as bays or inland seas, and is made of wood. Alternatively, the frame is formed of iron material with floats, and the net is suspended and supported by the frame that is moored and floats on the sea surface.

By the way, in order to improve the efficiency of aquaculture or capture and transportation in a fish tank, it is necessary to have a cage with a large capacity, especially a large planar projected area. In small bays or inland seas, environmental problems arise such as pollution from feed or deterioration of water quality in those areas.

In order to solve these problems, the applicant proposed a large-capacity cage device that can be used even in the open ocean where the influence of waves is large.
11642).

As shown in FIG. 4, this cage device consists of rod-shaped reinforcing elastic bodies 1 filled with gas and interconnected by bending joints 2, and the number of reinforcing elastic bodies 1 ranges from 4 to 30, and in the illustrated example is hexagonal. The frame is assembled to form the cage frame 3, and its rotation joint? By providing a locking part for the mooring line 4 and suspending the m6 from the cage frame 3, the device can be used even in the open ocean where waves and tidal currents have a strong influence.

(Problems to be solved by the invention) However, even if this cage device, which is less affected by waves and currents, is installed in the open ocean, there are still many problems that need to be solved in order to efficiently cultivate fish and shellfish in the cage device. remains. Specifically, feed that matches the type of fish and shellfish being farmed and their growth must be processed on land in advance, and the processed feed must be transported by boat to the sea area where the cages are set up. In addition to a separate processing plant and a ship to transport the processed feed, there is a need for a separate sea area where cage equipment can be installed.
Since this is limited to a range within which the ship can easily travel back and forth, there are problems such as increased running costs for the ship.

In addition, in order to avoid an imbalance between the amount of food fed to the fish and shellfish in the cage equipment and the amount of fish and shellfish as the final product, aquaculture allows the amount of food to be adjusted according to the growth of the fish and shellfish. equipment was needed.

(Object of the Invention) This invention was made in view of the above-mentioned problems, and provides an aquaculture plant that can efficiently cultivate fish and shellfish even in the open ocean with strong waves and currents, and is not limited in the installation area. Our goal is to provide the following.

(Structure of the Invention) In order to achieve this object, the open ocean aquaculture plant of the present invention includes a plant home having at least a deck part and a pier part located above the sea surface in which a cargo handling device, a feed storage, and a bait casting device are arranged, and a pier part. Each cage device includes a plurality of rod-shaped reinforcing elastic bodies filled with gas and interconnecting these reinforcing elastic bodies. and a bending joint forming a polygonal cage frame, and are connected to each other so as to be swingable.

(Function) According to this open ocean aquaculture plant, a boat carrying feed is brought alongside the pier of the platform, and the feed is unloaded onto the deck using a loading device installed on the deck and stored in the feed storage. Since a certain amount of feed can be stored in the plant home, there is no need to frequently transport the feed to the storage equipment by boat. This stored bait is processed and mixed on the deck according to the feeding cycle, in other words, the ecology of the fish and shellfish, and the processed and mixed bait is placed in each cage device installed around the platform. Feeding can be done using a feeding device.

Therefore, not only can rational feeding be carried out according to the physiology and ecology of the fish and shellfish in the cage device, but also the surroundings of the cage device will not be contaminated by surplus feed.

In addition, since each cage device is arranged around the platform, the area occupied by the aquaculture plant as a whole on the sea surface is reduced, and the influence of waves on the plant is therefore reduced, and the sea area where the cage device is installed can be used effectively.

(Example) The open ocean aquaculture plant of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing a preferred embodiment of the present invention, in which reference numeral 10 indicates a platform and 12 indicates four cage devices.

As schematically shown in FIG. 2(a), the plant home 10 is designed to be used in the open ocean, and the deck portion 14, which is susceptible to the effects of waves, is spaced apart from the sea surface and placed above it. It is preferable to use a gravity-type type, which has an interlocking structure and is less likely to be shaken by waves, and is easy to move and install in case of an emergency. However, although it has the disadvantage that the upper structure including the deck part is complicated, it is similar to a powered platform and is less susceptible to wave movement and is easy to move and install (see Figure 2 (b)).
It may be replaced with a jack-up type or tension leg type platform, respectively, as schematically shown in c).

Platform IO near the seabed below deck part 14
In other words, a pier portion 20 is provided on the part of the platform facing the waterway 18 that allows the ship 16 to approach the platform 10, to facilitate the ship's coming alongside the platform. The pier part 20 is a plant home lO
It has a structure in which the flooring is attached away from the sea surface to a support frame structure that is fixed to the legs of the pier by a known method such as welding, and like the support frame structure, the pier part is made of lattice-like members. and the influence of waves on the platform can be reduced. Reference numeral 22 is a monitoring passage for the platform and cage equipment that is fixed to the periphery of the plant platform excluding the pier part through its legs. It is better to reduce the influence of waves.

The pier section 20 and the deck section 14 are connected by at least one gangway 24, and workers can use this ramp 24 to freely move between the deck section, the pier section, and the monitoring passage. In addition, gangway 2
4 may have both ends fixed to the deck portion 14, the pier portion, and the pier portion 20, but if damage or outflow during wave height is taken into consideration, it is preferable that the container can be accommodated in the deck portion.

A crane 26 as a cargo handling device is provided on a deck portion separated from the sea surface, more specifically on a deck portion above the pier portion 20. The crane 26 is preferably capable of hoisting, raising, and turning movements, as well as being able to extend and retract the length of the boom. This facilitates operations such as loading and unloading miscellaneous goods and heavy goods, as well as loading fish and shellfish as final products onto ships.

The cargo is unloaded onto the deck portion 14 by the crane 26, and the cage device 12
The feed necessary for growing the fish and shellfish inside is stored in the feed storage 28.
to be transported to. In addition, it is preferable to carry the feed into the feed storage 28 using a transportation means such as a forklift or a belt conveyor. However, the present invention is not limited to this, and the upper part of the storage 28 may be opened, and the feed may be directly carried into the storage by the crane 26 through this opening.

Here, the feed includes live feed, frozen fish feed, mixed pellet feed, etc., as well as various chemicals to ensure the normal growth of the fish and shellfish, so that the feeding can be tailored to the physiological ecology of the fish and shellfish.

Each feed is taken out from the feed storage 28 according to the number of fish and shellfish in the cage device 12 and their growth.
After being processed and mixed, the bait is cast into each cage device by a bait casting device 30 disposed at appropriate intervals on the deck portion 14. In this embodiment, the bait casting device 30 includes:
It has a structure similar to a so-called derrick crane, in which a jib 30b is supported on a post 30a that is rotatably attached to the deck part 14, and a feed conveying hose connected to a feed pumping device 32 runs along the jib 30b. It is arranged. Various structures can be used as the bait casting device, but a plink crane type device is advantageous because it is easy to install and requires less materials.

By the way, in this embodiment, a feed processing factory (not shown) is provided adjacent to the feed storage 28 so that the processing and mixing of the feed and the feeding of the processed feed can be performed in a series of operations. Pellets 7 +- shall be collected in a silo 34 and supplied from this silo 34 to each feed pressure feeding device 32. The operation of such feed processing plant and pellet silo 34 is performed in a central control room 36. The flow of food at this time is shown in Figure 3. That is, a predetermined amount of feed stored in the storage is carried out from the storage depending on the growth condition and life ecology of the fish and shellfish. A portion of the live bait and the mixed pellet feed that were carried out are directly transported to the pellet silo, and the frozen fish feed is cut into appropriate sizes with a cutter, and a portion is mixed with the live bait as necessary. A part of the feed is sent to a pellet silo and a part of it is sent to a crusher together with the raw bait to be crushed, and the crushed feed is sent to a stirring granulator together with chemicals input from a chemical silo and mixed, and then transported to a pellet silo. Ru. The bait once collected in the pellet silo is sent to each bait feeding device 32, and each feeding device pumps the bait through a feed conveying hose, so a feeding port located at the free end of the jib 30b is used. It is discharged from the tank and falls into the cage. Note that it is preferable to configure the system so that each operation of transporting, processing, and feeding the feed can be operated individually and manually if necessary, and the central control room 36 is
Accommodation facilities are provided where a plurality of workers can stay up for a certain period of time depending on the amount of feed stored.

A cage device 12 is disposed around a platform 10 having a deck portion provided with the various facilities described above, except for a waterway 18 leading to a pier portion 20. These cage devices have substantially the same configuration as the cage device shown in FIG. 4, and although the details are omitted, in this embodiment, a frame 3 having a hexagonal planar shape is used. Each cage device is arranged such that reinforcing elastic bodies 1 forming one side of the adjacent cage devices are arranged parallel to each other, and bending joints 2 arranged at both ends of the reinforcing elastic bodies and facing each other are connected to the central part. They are connected to each other by a connecting cable 38 provided with a styrofoam float. As a result, each cage device is allowed to swing individually against waves, so the frame of the cage device
External forces caused by waves acting on the frame are less likely to be superimposed on adjacent frames, allowing fish and shellfish to be cultured safely.

Furthermore, the frame 3 of each cage device has a respective bending joint 2 located close to the plant home 10.
It is connected to the legs of the platform 10 via another connecting cable 39. Curved joints other than those mentioned above are mooring cables with floats provided at a predetermined distance from each other.
Connect to. As a result, each cage device can individually perform rocking motion with respect to the platform 10, and their respective positional relationships do not shift.

Although the planar shape of the frame 3 of the cage device is hexagonal, it is not limited to this, and it is possible to allow migratory movement of fish and shellfish and to avoid unnecessary parts in the planar shape of the cage device. In addition, any device that can ensure that the bait can be dropped into the cage device by the bait casting device may be used.

In this embodiment, since five cage devices each having a hexagonal frame body 3 are arranged adjacent to each other, the sea area in which the platform 10, which is almost surrounded by these cage devices, is located also has a substantially hexagonal shape. Therefore, the legs of the plant platform 10 are arranged to correspond to the top of this hexagon, so that the line segment connecting the adjacent legs is almost parallel to the reinforcing elastic body forming one side of each frame. I made it. In this way, each cage device is arranged uniformly with respect to the platform, and the external forces acting on each cage device and the connecting line are equal.

Further, the deck part 14 is also approximately hexagonal, and bait casting devices 30 are attached near the apex of the deck portion 14, and by rotating each bait throwing device, it is possible to feed two cage devices.

For this reason, it is only necessary to install three bait casting devices for five cage devices, and the number of bait feeding devices can be reduced.
The structure of the deck part is simple, and it is also advantageous in terms of equipment cost.

Note that the present invention is not limited to these examples,
Various changes can be made within the scope of the claims, and the shape of the cage device and the shape of the platform including the deck portion can be changed in accordance with the sea area where the aquaculture plant is installed.

(Effects of the invention) As detailed above, according to the open ocean aquaculture plant of the present invention,
The cage devices, which have excellent wave performance and can follow the wave surface without being damaged by relatively large waves in the open ocean, are connected in a swingable manner, and each cage device is connected to the platform in a swingable manner. Since the wave handling ability is not affected, the planar shape can be made large within the allowable strength, and fish and shellfish can be efficiently cultivated even in the open ocean. A feed storage is installed on the Shigamo platform to store the feed necessary to produce the fish and shellfish in the cage for a certain period of time (for example, 2 to 3 weeks), so there is no need to frequently transport the feed. Therefore, the running cost of the aquaculture plant can be significantly reduced, and the sea areas in which it can be installed can be expanded. Furthermore, the feed can be processed and mixed on the plant platform according to the growth condition and living ecology of the fish classification, and then fed using a bait casting device, so the amount of bait thrown can always be appropriate. Since the quantity of fish and shellfish as the final product is balanced with the amount of feeding, it is possible to farm efficiently, and there is almost no pollution of the surrounding sea area.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the open ocean aquaculture plant of the present invention, FIG. 2(a) is a diagram schematically showing the platform of the apparatus shown in FIG. 1, FIG. 2(b) c) is a diagram schematically showing other types of platforms applicable to the apparatus shown in FIG. 1; FIG. 3 is a diagram showing the flow of feed in the plant shown in FIG. 1; The figure is a perspective view showing a cage device suitable for use with the device shown in FIG. 1. 1-・Reinforcing elastic body 2-Bending joint 3-Frame body
4-Mooring rope 5-Locking part 6・-Net 10・-Plat・7 platform 12=-Fusion device 14
- Deck part 16 - Ship 18 - Waterway 20 - Pier part 22 - Monitoring passage 24 - Gangway 26 - Crane
28-Feed storage 30-Feeding device 30a
- Post 30b - Jib 32 - Feed pressure feeding device 34 - Pellet silo 36 - Central control room 38
．． 39... Connecting cables Figure 3 Figure 4

Claims (1)

[Claims] 1. A platform with at least a deck part and a pier part located above the sea surface on which cargo handling equipment, food storage and bait casting equipment are arranged, and a platform arranged around the platform excluding the pier part and each moored to this platform. Each cage device includes a plurality of rod-shaped reinforcing elastic bodies filled with gas,
An open ocean aquaculture plant characterized by comprising a bending joint that interconnects these reinforcing elastic bodies to form a polygonal cage frame, and is also connected to each other so as to be swingable.