JPH0343028A - Method for reaping and treating laver with acid and ship therefor - Google Patents

Abstract

PURPOSE:To automatically and efficiently carry out reaping and treating laver with an acid by advancing a ship having a power propulsion mechanism to the undersurface of a laver net, reaping laver sticking to the laver net into the ship, simultaneously treating the above-mentioned net with the acid and returning the laver net again to the stretched position. CONSTITUTION:A hull 4 having a power propulsion mechanism 5 is advanced so as to pass under the undersurface of a laver net, which is led above the bow part with a front guide member 7 to reap laver into the ship with a reaping mechanism 16 while guiding the laver net from the bow part to the back with an upper guide member 8. Just after that, the net is floated in air, treated with an acid using an acid treating mechanism 20, then reguided to the original stretched position with a back guide member 9 and stretched. Thereby, effects, such as manpower and labor saving, are produced.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is a method for automatically harvesting seaweed from a seaweed net spread over the sea surface at a seaweed breeding farm and subjecting it to effective acid treatment. This invention relates to a reaping acid treatment method and a reaping acid treatment vessel.

[Conventional technology]

In general, seaweed cultivation is carried out by a floating method in which a float is attached to a seaweed net and the net is stretched out to float on the sea surface and then secured with an anchor, or by a prop method in which the seaweed net is stretched out on a support erected in the sea.

In such seaweed farming, it is necessary to efficiently harvest the seaweed from the seaweed net, and the applicant has
No. 60-52036 proposes a seaweed harvesting boat that solves the problems of previous harvesting methods. In other words, while self-propelled by a power propulsion mechanism, the front guide member whose tip is submerged in the sea is inserted below the seaweed net spread over the sea surface, and the seaweed net is automatically and continuously extended from the sea surface. By scooping up the seaweed and harvesting the seaweed from the seaweed net using a reaping mechanism installed on the hull, the conventional problems are solved, and the seaweed is harvested efficiently and labor-savingly.

[Problem to be solved by the invention]

On the other hand, in order to grow ambiguous seaweed and improve the harvest rate, acid treatment is applied to the seaweed nets after harvesting.

In the conventional acid treatment method, the seaweed net that has been spread on the sea surface is first lifted onto a ship, immersed in an acid treatment tank for a predetermined time, and then spread on the sea surface again. In this conventional method, it is necessary to loosen or tie the strings that tie the seaweed net to the side nets, etc., resulting in poor workability.

Therefore, conventionally, after harvesting seaweed by boat, acid treatment has been performed on the ship by injecting an acid treatment agent onto the seaweed net or by passing the seaweed net through an acid treatment tank.

However, in this conventional acid treatment method on board ships, the seaweed net is re-expanded in seawater in a short period of time after being acid treated, so it is not possible to spend sufficient acid treatment time, compared to the above-mentioned immersion method. Therefore, effective acid treatment is not possible.
It was.

The present invention has been made in view of these points, and allows not only to automatically and efficiently harvest seaweed using a boat, but also to perform acid treatment automatically and extremely efficiently. An object of the present invention is to provide a seaweed cutting acid treatment method and a seaweed harvesting acid treatment boat that can save manpower and labor.

[Means to solve the problem]

The seaweed harvesting and acid treatment method of the present invention involves moving a ship having a power propulsion mechanism so as to pass under the underside of a seaweed net spread over the sea surface, and relatively moving the seaweed net from the bow to the rear of the ship. The seaweed attached to the seaweed net is harvested by the boat while the seaweed net is cut, and the seaweed net is treated with acid immediately after the harvesting, and the seaweed net is floated in the air for a time effective for this acid treatment. It is characterized by being guided to the expanded position and expanded again.

The seaweed reaping and acid treatment boat of the present invention includes a power propulsion mechanism, a reaping mechanism for reaping seaweed from a seaweed net guided above the hull, and an acid treatment for the seaweed net immediately after harvesting the seaweed. an acid treatment 31111 structure; a front guide member that guides the seaweed net spread over the sea surface above the bow of the ship; and an upper guide member that guides the seaweed net from the bow of the ship to the rear of the ship. , the seaweed net after acid treatment is floated in the air for a period of 58 hours that is effective for the acid treatment, and then the expanded position δ is
and a rear guide member for guiding and re-expanding the tube.

[For production]

According to the invention, the reaping acid '2! X1! ! The ship is propelled by a power propulsion mechanism, and while the seaweed net spread on the sea surface is being scooped up onto the hull by the front guide member and guided backwards along the upper guide member, the reaping mechanism The seaweed is harvested from the seaweed net, and then the acid treatment mechanism applies acid treatment to the harvested seaweed net. Thereafter, the seaweed net is floated in the air by the rear guide member for an effective time for acid treatment, and after being subjected to sufficient acid treatment, it is spread out again on the sea surface.

〔Example〕

Hereinafter, embodiments of the present invention will be explained with reference to FIGS. 1 to 5.

1 to 5 show an embodiment of the harvesting acid treatment vessel of the present invention.

This embodiment shows a case in which seaweed is harvested from a seaweed net 1 used in an aquaculture method called floating and treated with acid.

This seaweed net 1 can be used as an anchor (not shown)! ! It is tied with wJ3 to a large number of floating floats 2, 2, etc., and is spread out so as to float on the sea surface.

The reaping acid treatment boat of this embodiment is equipped with a power steering mechanism 5 in the hull 4, and a pipe-shaped guide member 6 is provided on the upper part of the hull 4. The guide member 6 is divided into a front guide member 7, an upper guide member 8 and a rear guide member 9. The front guide member 7 is formed into a U-shape in plan view, and the curved tip of this U-shape is sunk into the sea at a constant inclination from the bow, and the other end is erected on the deck by means of downward-facing legs 10. At the same time, the base of the front guide member 7 is detachably and rotatably attached to the upper guide member 8 by bolts 11. In addition, the upper guide member 8
is formed by two pipes arranged above the port and starboard sides of the hull 4 parallel to the @ line direction of the hull 4, and these two pipes are connected to several pipes perpendicular to the axial direction of the hull 4. They are interconnected by crosspieces 12 and fixed to the hull 4/ by legs 13.

The upper guide member 8 forms a continuous curve or a straight line with the front guide member 7 so that the seaweed net 1 scooped up by the front guide member 7 is smoothly guided to the rear of the ship. It is configured as follows.

A pipe-shaped rear guide member 9 is detachably and rotatably connected to the rear end of the upper guide member 8 by a bolt 14 at its base. The total length of the rear guide member 9 is determined by the length of the seaweed net 1, which has been acid-treated in the acid treatment mechanism 20 (described later), while the seaweed net 1 moves relatively to the rear end of the rear guide member 9 as the ship advances. It is said to be long enough to levitate in the air long enough to provide sufficient acid treatment effects. Further, the rear end of this rear guide member 9 is held close to the sea surface by a fixed float 15, so that the seaweed net 1 can be re-expanded smoothly into the seawater. Like the upper guide member 8, it is connected by a crosspiece 12.

Further, the widths of the front guide member 7, the upper guide member 8 and the rear guide member 9 are preferably about 1 nl- or larger than the width of the seaweed net 1.

As described above, the guide member 6 is splittable and rotatable at the bolts 11 and 14 so that the front guide member 7 and the rear guide member 9 can be separated and rotated in the sea when the ship goes to and from the cheek nursery. It is preferable in the sense that it can be pulled up further, is not subject to seawater resistance, and prevents damage or destruction of the front guide member 7 and the rear guide member 9 during berthing, but it is preferable to fix everything without dividing it. However, there is essentially no problem with the harvesting and acid treatment of seaweed. Further, the shape of the tip of the front guide member 7 is not limited to the U-shape, but may be a 9-shape as long as it can smoothly scoop up the seaweed net 1 floating on the sea surface as the hull 4 moves forward. , but is not particularly limited.

A conventionally known reaping mechanism 16 is provided below the bow oblique portion of the front guide member 7, and this reaping mechanism 1
6 is a shaft 1 rotated by an electric motor (not shown) or the like.
L-shaped blades 18 having the same width as the front guide member 7 are attached radially to the front guide member 7, and by rotating the L-shaped blades 18, the seaweed hanging from the seaweed net 1 is harvested. be. The reaping mechanism 16 may also include a structure in which a wire rod such as piano wire is stretched between the outer peripheries of two disks, and by rotating it, the HQ M can be harvested using the stretched wire rod. The number is not limited to the above as long as there are 11 harvests that can be harvested continuously.

A storage section 19 for harvesting the harvested seaweed is provided in the center of the hull 4, and the seaweed cut by the reaping mechanism slides along the deck sloping toward the storage section. It will be delivered on the 19th.

Also, reaping ti! Immediately after M416, there is a pretreatment III in which acid treatment is applied to the seaweed net 1 which has been harvested and drained.
! A mechanism 20 is installed. This acid treatment mechanism 20 injects an acid treatment liquid from the lower surface side of the seaweed net 1 through a large number of injection holes 22 of an acid treatment pipe 21 that extends horizontally over the entire length of the front guide member 7 to perform the M treatment. is formed. The acid treatment vibe 21 is connected to the hull 4 as shown in FIG.
An acid treatment liquid 26 is pumped from an acid treatment liquid tank 23 provided above through a feed pipe 25 by a pump 24, and the dead rate of the Pa treatment liquid 26 in this acid treatment liquid tank 23 is set to a predetermined value. 1-1 sensor 27 which detects the opening of acid treatment PIj, 26 and the sensor 27 which detects the opening of acid treatment PIj, 26, and supplies an acid agent into pretreatment It'e 23 according to the detected p value of Losenza 27.
A four-agent supply system 28 and a diluent supply system 29 that supplies a diluent such as seawater or an alkaline solution into the acid treatment liquid tank 23 are provided.

The re-supply systems 28 and 29 both supply the liquid and diluted liquid in the acid liquid tank 30 and diluted liquid tank 33 to the acid treatment liquid tank 23 as required through the feed pipe 32.35 using pumps 31.34. It has become. Further, as the acid, it is preferable to use one appropriately selected and prepared from inorganic acids and organic acids used for acid treatment of seaweed. Further, as the alkali, sodium hydroxide, potassium hydroxide, etc. may be used.

A permeation promoting mechanism 36 is provided at a position downstream of the acid treatment 1fi structure 20 in the traveling direction of the seaweed net 1 to increase the permeation speed of the acid treatment liquid 26 into the cells of the seaweed. As shown in FIG. 5, this permeation promotion mechanism 36 is configured to penetrate into the permeate liquid 38 of the permeate tank 37 disposed behind the entire width of the upper guide member 8.
The running seaweed net 1 is pressed down from above by a pressing roller device 139 to be immersed.

This pressing roller mechanism 39 has a roller 41 rotatably mounted on a shaft member 40, and the base end of the shaft member 40 is pivotally connected to the pedestal portion of the permeation tank 37, so that the legs can be freely moved. As the penetrating liquid 38, the acid treatment liquid 26 penetrates the cell membrane of the seaweed! Can promote penetration into 1IIIl:b
It is fine if it is. Further, an ultrasonic oscillator 42 is provided within the permeation tank 37. This ultrasonic oscillator 42 uses ultrasonic waves to further increase the degree of penetration of the acid treatment liquid 26 into the cells of the seaweed, and also cleans dirt adhering to the surface of the seaweed.

In addition, a sterilizer 1M43 is provided with an ozone generator or the like in the penetration promotion mechanism 36 to sterilize germs attached to the leaves.
is provided. Further, as another sterilization mechanism, the seaweed net 1 may be irradiated with ultraviolet rays.

Further, a wheelhouse 44 is provided at the rear end of the hull 4, and the height of the wheelhouse 44 is lower than the height of the guide member 6 so as not to obstruct the running of the seaweed net 1 on the guide member 6. Inside the wheelhouse 44 are a reaping mechanism 16, an acid treatment mechanism 20. It is equipped with a control section that commands and manages the operations of the ultrasonic oscillator 42 and the sterilization mechanism 43, and it is most preferable that all operations be performed within this wheelhouse 44.

In addition, there is a storage section 19 for storing cut seaweed and an acid treatment vA.
Each mechanism after the structure 20 is completely isolated by a separator plate (not shown) or the like.

Next, a method of cutting seaweed and treating it with acid according to this embodiment will be described.

First, as shown in FIGS. 1 and 2, one of the front guide members 7 is extended forward and the other upper guide member 8 is extended rearward, and then the hull 4 is stretched with the seaweed net 1. The power propulsion mechanism 5 is driven from the extension direction to enter with self-blade propulsion, and the front guide &5t47 whose tip is immersed in the sea continuously scoops up seaweed II from the sea surface, and as the ship moves forward with self-blade, seaweed Wi1 is guided to the rear of the hull along the upper guide member 8, further guided to the rear of the hull 4 by the rear guide member 9, and returned to the sea surface from the rear end of the rear guide member 9.

During this time, the nori leaves hanging down from the nori net 1 moving along the front guide member 7 are continuously cut and harvested by the reaping mechanism 16 and stored in the storage section 19 of the hull 4, and then the acid treatment mechanism 20, acid treatment is applied to the harvested seaweed net 1, and then, during relative movement to the v1 end of the rear guide member 9, the acid treatment agent is sufficiently penetrated into the I8 cells of the seaweed, and it also adheres to the leaf bodies. Sterilize the germs that are present.

Precondition j! in this example! ! The acid treatment by mechanism 20 is
Since the seaweed net 1 has just been reaped by the reaping mechanism 16, the seaweed net 1 is in a drained state, and each injection hole 2 of the acid treatment vibrator 21 is
The acid treatment liquid injected from 2 is uniformly coated over the entire width of the seaweed net 1, and uneven treatment does not occur. In addition, since the acid treatment is performed immediately after harvesting, the acid treatment effect is extremely high. Losensa 27,
Since the acid agent supply system 28 and the diluent supply system 29 maintain one portion of the acid treatment agent at a predetermined value, it is possible to perform good acid treatment on the fabric.

Furthermore, in this embodiment, the permeation speed of the acid treatment agent into the cells of the seaweed is increased by the permeation promotion mechanism 36, so that the seaweed net 1 is re-immersed into the seawater from the rear end of the rear guide member 9. Even if the time until the acid treatment is further shortened, a sufficient acid treatment effect will be exhibited. In addition, the ultrasonic oscillator 42
The cleaning action and sterilization action of sterilization 1 (1B443) further enhance the acid treatment effect.

In this way, in this embodiment, by simply propelling the hull 4, the seaweed WJ1 spread out in the seawater is scooped up onto the ship by the tti section guide member 7, and the seaweed is automatically harvested. Acid treatment can be applied automatically and the seaweed can be spread out again in seawater, improving the harvest rate of seaweed and promoting the growth of seaweed in an eastward direction, improving work efficiency and saving labor. , labor saving can be achieved.

In the above embodiment, the acid treatment solution was applied to the seaweed net 1 as the acid treatment 20, but for example, the seaweed net 1 was Fi! 2. The acid treatment solution may be applied to the seaweed net 1 by immersing a tube in the treatment solution or by using a wax.

Furthermore, the present invention is not limited to the above embodiments,
It can be changed as necessary.

(Effects of the Invention) As described above, the seaweed reaping acid treatment method and the reaping pretreatment Ll ship of the present invention are configured and work, so that the reaping of seaweed can be automatically and efficiently performed using the ship. In addition, the acid treatment can be carried out automatically and extremely efficiently, which has the effect of saving time and labor.

[Brief explanation of drawings]

Fig. 1 shows an embodiment of the seaweed reaping pre-treatment vessel of the present invention, Fig. 1 is a side view, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a longitudinal side view of the reaping mechanism. FIG. 4 is a block diagram of the acid treatment mechanism, and FIG. 5 is a block diagram of the penetration promotion n +:4. DESCRIPTION OF SYMBOLS 1... Seaweed net, 4... Hull, 5... Power propulsion mechanism, 6... Guide member, 7... Front guide member, 8...
Upper guide member, 9...Rear guide member, 16...Reap! 1 structure, 20... Acid treatment mechanism, 36... Penetration promotion mechanism, 42... Ultrasonic oscillator, 43... Sterilization mechanism.

Claims (1)

[Claims] 1) While moving a ship having a power propulsion mechanism so as to pass under the underside of a seaweed net spread over the sea surface, and relatively moving the seaweed net from the bow to the rear of the ship, The seaweed attached to the seaweed net is harvested by the ship, and the seaweed net is treated with acid immediately after the harvesting, and the seaweed net is floated in the air for a time effective for the acid treatment, and then returned to the deployed position. A method for acid treatment of harvested seaweed, which is characterized by guiding and re-expanding the seaweed. 2) A power propulsion mechanism, a reaping mechanism that reaps seaweed from a seaweed net guided above the hull, an acid treatment mechanism that applies acid treatment to the seaweed net immediately after harvesting the seaweed, and an acid treatment mechanism that applies acid treatment to the seaweed net that is spread on the sea surface. a front guide member that guides the seaweed net above the bow of the ship; an upper guide member that guides the seaweed net from the bow of the ship to the rear; A seaweed reaping and acid treatment boat having a rear guide member that floats in the air for a time effective for acid treatment and then guides it to the expanded position and expands it again.