JP2018099073A - Laver net treatment ship - Google Patents

Laver net treatment ship Download PDF

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JP2018099073A
JP2018099073A JP2016247038A JP2016247038A JP2018099073A JP 2018099073 A JP2018099073 A JP 2018099073A JP 2016247038 A JP2016247038 A JP 2016247038A JP 2016247038 A JP2016247038 A JP 2016247038A JP 2018099073 A JP2018099073 A JP 2018099073A
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acid treatment
treatment tank
acid
alkali
laver
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JP6898091B2 (en
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笠井　秀城
Hideki Kasai
秀城 笠井
笠井　芳樹
Yoshiki Kasai
芳樹 笠井
笠井　弘子
Hiroko Kasai
弘子 笠井
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Koyo Tsusho KK
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Koyo Tsusho KK
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Abstract

PROBLEM TO BE SOLVED: To provide a laver net treatment ship which can suppress or prevent dissipation of acids into seawater, which acids are used for acid treatment of laver nets.SOLUTION: The present invention relates to a boxy ship (laver net treatment ship) which includes a first acid treatment tank S1 for storing a first acid treatment solution and a second acid treatment tank S2 for storing a second acid treatment solution, and soaks laver nets N1-N6 with laver adhered thereto into the first acid treatment tank and the second acid treatment tank for acid treatment of the laver nets, the laver net treatment ship further including an alkali treatment tank S3 for storing an alkali treatment solution into which acid-treated laver nets N1-N6 are soaked for neutralization.SELECTED DRAWING: Figure 3

Description

本発明は、海苔網処理船に関する。   The present invention relates to a laver net processing vessel.

下記特許文献１には、所謂モグリ船を用いた海苔網の連続処理方法（酸処理方法）が開示されている。この連続処理方法は、モグリ船を海苔網の下に潜らせ、所定の酸の水溶液である酸洗浄液を海苔網に吹き付け、海苔網に付着した珪藻類を除去するものである。また、この特許文献１には、海苔網の酸処理に使用された酸洗浄液を回収し、中和処理した後に下水に放流することが記載されている。   Patent Document 1 below discloses a continuous processing method (acid processing method) of a laver net using a so-called mogul ship. In this continuous processing method, a mog boat is submerged under a laver net, and an acid cleaning solution that is an aqueous solution of a predetermined acid is sprayed onto the laver net to remove diatoms adhering to the laver net. Patent Document 1 describes that an acid cleaning solution used for acid treatment of a laver net is collected, neutralized, and discharged into sewage.

特開２００３−３８０５１号公報JP 2003-38051 A

ところで、上記背景技術では、使用後の酸洗浄液を中和処理することが記載されているが、海苔網に付着した酸洗浄液（酸処理液）は海苔網とともに海中に放散される。このような海苔網の酸処理に使用される酸の海水への放散は、海の環境維持という観点から好ましくない。例えば酸として有機酸を用いた場合、この有機酸は海水のＣＯＤ（Chemical Oxygen Demand：化学的酸素要求量）やＢＯＤ（Biochemical oxygen demand：生物化学的酸素要求量）を上昇させることになるので、海の生態系に悪影響を与える可能性が高い。   By the way, in the above background art, it is described that the acid cleaning liquid after use is neutralized, but the acid cleaning liquid (acid processing liquid) adhering to the laver net is diffused into the sea together with the laver net. Dissipation of the acid used for the acid treatment of the laver net into seawater is not preferable from the viewpoint of maintaining the sea environment. For example, when an organic acid is used as an acid, the organic acid increases COD (Chemical Oxygen Demand) and BOD (Biochemical oxygen demand) of seawater. It is likely to have a negative impact on the marine ecosystem.

本発明は、上述した事情に鑑みてなされたものであり、海苔網の酸処理に使用される酸の海水への放散を抑制あるいは解消することが可能な海苔網処理船を提供することを目的とする。   The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a laver net processing vessel capable of suppressing or eliminating the diffusion of the acid used for the laver net acid treatment into seawater. And

上記目的を達成するために、本発明では、海苔網処理船に係る第１の解決手段として、酸処理液を貯留する酸処理槽を備え、海苔が付着した海苔網を前記酸処理液に浸漬させて酸処理する海苔網処理船であって、アルカリ処理液を貯留するアルカリ処理槽を備え、酸処理後の前記海苔網を前記アルカリ処理液に浸漬させて中和処理する、という手段を採用する。   In order to achieve the above object, in the present invention, as a first solution for a laver net processing vessel, an acid treatment tank for storing an acid treatment liquid is provided, and the laver net with laver attached is immersed in the acid treatment liquid A seaweed net processing vessel that performs acid treatment and includes an alkali treatment tank that stores an alkali treatment liquid, and adopts a means of neutralizing the seaweed net after acid treatment by immersing it in the alkali treatment liquid. To do.

本発明では、海苔網処理船に係る第２の解決手段として、上記第１の解決手段において、前記酸処理槽には前記海苔網を巻き取る第１の巻取ローラが設けられ、前記アルカリ処理槽には前記海苔網を巻き取る第２の巻取ローラが設けられ、前記第１の巻取ローラから前記第２の巻取ローラに前記海苔網を巻き替える、という手段を採用する。   In the present invention, as a second solving means relating to a laver net processing ship, in the first resolving means, the acid treatment tank is provided with a first winding roller for winding the laver net, and the alkali treatment. The tank is provided with a second winding roller for winding the laver net, and means for rewinding the laver net from the first winding roller to the second winding roller is adopted.

本発明では、海苔網処理船に係る第３の解決手段として、上記第１または第２の解決手段において、前記酸処理槽と前記アルカリ処理槽との間には、前記海苔網の前記酸処理槽から前記アルカリ処理槽への移動を補助する補助ローラが設けられている、という手段を採用する。   In the present invention, as a third solving means relating to a laver net processing ship, in the first or second resolving means, the acid treatment of the laver net is provided between the acid treatment tank and the alkali treatment tank. A means that an auxiliary roller for assisting movement from the tank to the alkali treatment tank is provided.

本発明では、海苔網処理船に係る第４の解決手段として、上記第１〜第３のいずれかの解決手段において、前記酸処理槽には、前記海苔網における前記酸処理液の付着量を減少させる付着量減少手段が設けられる、という手段を採用する。   In the present invention, as a fourth solving means relating to a laver net processing ship, in any one of the first to third resolving means, the acid treatment tank has an adhesion amount of the acid treatment liquid in the laver net. A means is provided that means for reducing the amount of adhesion is provided.

本発明では、海苔網処理船に係る第５の解決手段として、上記第２〜第４のいずれかの解決手段において、前記酸処理槽は、前記アルカリ処理槽を挟んで前後に２つ設けられる、という手段を採用する。   In the present invention, as a fifth solving means relating to a laver net processing ship, in any of the second to fourth solving means, two acid treatment tanks are provided before and after the alkali treatment tank. , Is adopted.

本発明では、海苔網処理船に係る第６の解決手段として、上記第５の解決手段において、２つの前記酸処理槽は、前記酸処理液の流通が可能なように相互接続されている、という手段を採用する。   In the present invention, as a sixth solution for a laver net processing ship, in the fifth solution, the two acid treatment tanks are interconnected so that the acid treatment liquid can be circulated. Adopt the means.

本発明では、海苔網処理船に係る第７の解決手段として、上記第５または第６の解決手段において、前記アルカリ処理槽には前記第２の巻取ローラが前後に２つ設けられる、という手段を採用する。   In the present invention, as the seventh solution means relating to the laver net processing ship, in the fifth or sixth solution means, the alkali treatment tank is provided with two second winding rollers in the front and rear. Adopt means.

本発明では、海苔網処理船に係る第８の解決手段として、上記第１〜第７のいずれかの解決手段において、前記酸処理槽及び前記アルカリ処理槽の上側には前記海苔網を案内する網案内手段が設けられる、という手段を採用する。   In the present invention, as an eighth solving means relating to a laver net processing ship, in the above first to seventh resolving means, the laver net is guided above the acid treatment tank and the alkali treatment tank. A means that a net guiding means is provided is adopted.

本発明によれば、海苔網の酸処理に使用される酸の海水への放散を抑制あるいは解消することが可能な海苔網処理船を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the laver net processing ship which can suppress or eliminate the dispersion | distribution to the seawater of the acid used for the acid process of a laver net can be provided.

本発明の一実施形態に係る箱型船の正面図である。It is a front view of the box type ship concerning one embodiment of the present invention. 上記図１におけるＸ−Ｘ線矢視図である。It is a XX arrow directional view in the said FIG. 本発明の一実施形態に係る箱型船において、海苔網の移動を示す説明図である。It is explanatory drawing which shows the movement of a laver net in the box-type ship which concerns on one Embodiment of this invention.

以下、図面を参照して、本発明の実施形態について説明する。
本実施形態に係る箱型船Ａは、海苔の養殖海域（養殖現場）において海苔網に付着した海苔に酸処理を施す比較的小型の海苔網処理船である。周知のように、海苔の養殖現場には帯状の海苔網が複数条隣接配置されているが、この箱型船Ａは、図１に示すように一対の長辺と一対の短辺とを有する箱型に形成されており、図示しない推進器により一対の長辺の対向方向（前後方向）に航行することにより各条の海苔網を順次巻き取りって連続的に酸処理を施す。 Embodiments of the present invention will be described below with reference to the drawings.
The box-type ship A according to the present embodiment is a relatively small laver net processing ship that performs acid treatment on the laver adhering to the laver net in the laver culture sea area (culture site). As is well known, a plurality of strip-shaped laver nets are arranged adjacent to each other in the seaweed cultivation site, and this box-shaped ship A has a pair of long sides and a pair of short sides as shown in FIG. It is formed in a box shape, and the seaweed net of each strip is wound up sequentially by navigating in the opposing direction (front-rear direction) of a pair of long sides by a propulsion unit (not shown), and the acid treatment is continuously performed.

このような箱型船Ａは、図１及び図２に示すように、船本体１、４本の巻取ローラ２ａ〜２ｄ、２つの補助ローラ３ａ、３ｂ、４つの水切ローラ４ａ１、４ａ２、４ｂ１、４ｂ２、３つの案内ローラ５ａ〜５ｃ、連通管６ａ、開閉バルブ６ｂ、酸タンク７、第１酸ポンプ８、第２酸ポンプ９、アルカリタンク１０、アルカリポンプ１１、ｐＨ制御計１２及び３つのｐＨセンサ１３〜１５を備えている。   As shown in FIGS. 1 and 2, the box-type ship A has a ship body 1, four winding rollers 2a to 2d, two auxiliary rollers 3a, 3b, four draining rollers 4a1, 4a2, 4b1. 4b2, three guide rollers 5a to 5c, communication pipe 6a, on-off valve 6b, acid tank 7, first acid pump 8, second acid pump 9, alkali tank 10, alkali pump 11, pH controller 12 and three pH sensors 13 to 15 are provided.

船本体１は、箱型の樹脂製浮体であり、例えば前後方向（短辺）の寸法が約１．５ｍ、幅方向（長辺）の寸法が約２ｍである。この船本体１は、側壁部１ａ、底壁部１ｂ、２つの幅区画壁部１ｃ、１ｄ及び２つの前後区画壁部１ｅ、１ｆを備えている。   The ship body 1 is a box-shaped resin floating body, and for example, the dimension in the front-rear direction (short side) is about 1.5 m, and the dimension in the width direction (long side) is about 2 m. The ship body 1 includes a side wall 1a, a bottom wall 1b, two width partition walls 1c and 1d, and two front and rear partition walls 1e and 1f.

すなわち、この船本体１は、上記一対の長辺と一対の短辺とを有すると共に所定高さに立設する口型形状での側壁部１ａの下端に平板状の底壁部１ｂが連接されることにより外形（舟形）を形成している。また、この船本体１は、このような舟形内において、一対の短辺の各々について所定距離を隔てて平行対峙するように幅区画壁部１ｃ、１ｄをそれぞれ設け、また当該２つの幅区画壁部１ｃ、１ｄの間に上記一対の長辺と所定距離を隔てて平行対峙するように２つの前後区画壁部１ｅ、１ｆを離間配置したものである。   That is, the ship body 1 has a pair of long sides and a pair of short sides, and has a flat bottom wall portion 1b connected to a lower end of a side wall portion 1a having a mouth shape standing at a predetermined height. The outer shape (boat shape) is formed. Further, the ship body 1 is provided with the width partition wall portions 1c and 1d in such a boat shape so as to face each other in parallel with a predetermined distance between each of the pair of short sides, and the two width partition walls. Two front and rear partition wall portions 1e and 1f are spaced apart so as to face each other in parallel with a predetermined distance from the pair of long sides between the portions 1c and 1d.

このような船本体１は、舟形内が２つの幅区画壁部１ｃ、１ｄ及び２つの前後区画壁部１ｅ、１ｆによって５つの領域に区画されている。すなわち、舟形内において、側壁部１ａ、底壁部１ｂ、２つの幅区画壁部１ｃ、１ｄ及び一方の前後区画壁部１ｅによって囲まれた空間が第１酸処理槽Ｓ１である。また、側壁部１ａ、底壁部１ｂ、２つの幅区画壁部１ｃ、１ｄ及び他方の前後区画壁部１ｆによって囲まれた空間が第２酸処理槽Ｓ２である。さらに、底壁部１ｂ、２つの幅区画壁部１ｃ、１ｄ及び２つの前後区画壁部１ｅ、１ｆによって囲まれた空間がアルカリ処理槽Ｓ３である。すなわち、この箱型船Ａでは、アルカリ処理槽Ｓ３を挟んで前後に２つの酸処理槽（第１酸処理槽Ｓ１及び第２酸処理槽Ｓ２）が設けられている。   In such a ship main body 1, the inside of the boat shape is divided into five regions by two width partition wall portions 1c and 1d and two front and rear partition wall portions 1e and 1f. That is, in the boat shape, a space surrounded by the side wall 1a, the bottom wall 1b, the two width partition walls 1c and 1d, and the one front and rear partition wall 1e is the first acid treatment tank S1. The space surrounded by the side wall 1a, the bottom wall 1b, the two width partition walls 1c and 1d, and the other front and rear partition walls 1f is the second acid treatment tank S2. Furthermore, the space surrounded by the bottom wall portion 1b, the two width partition wall portions 1c and 1d, and the two front and rear partition wall portions 1e and 1f is an alkali treatment tank S3. That is, in this box-type ship A, two acid treatment tanks (first acid treatment tank S1 and second acid treatment tank S2) are provided before and after the alkali treatment tank S3.

上記第１酸処理槽Ｓ１には、酸原液Ｇ１が海水によって所望のｐＨ値に希釈された第１酸処理液Ｗ１が貯留されており、また第２酸処理槽Ｓ２には、酸原液Ｇ１が海水によって所望のｐＨ値に希釈された第２酸処理液Ｗ２が貯留されており、さらにアルカリ処理槽Ｓ３には、アルカリ原液Ｇ２が海水によって所望のｐＨ値に希釈されたアルカリ処理液Ｗ３が貯留されている。第１酸処理液Ｗ１及び第２酸処理液Ｗ２のｐＨ値は、例えばｐＨ＝０．１〜３．０であり、アルカリ処理液Ｗ３のｐＨ値は、例えば５.０〜９．０である。   The first acid treatment tank S1 stores the first acid treatment liquid W1 obtained by diluting the acid stock solution G1 with seawater to a desired pH value, and the second acid treatment tank S2 contains the acid stock solution G1. The second acid treatment liquid W2 diluted to a desired pH value with seawater is stored, and the alkali treatment liquid W3 obtained by diluting the alkali stock solution G2 to the desired pH value with seawater is stored in the alkali treatment tank S3. Has been. The pH value of the first acid treatment liquid W1 and the second acid treatment liquid W2 is, for example, pH = 0.1 to 3.0, and the pH value of the alkali treatment liquid W3 is, for example, 5.0 to 9.0. .

また、同じく舟形内において、側壁部１ａ、底壁部１ｂ及び一方の幅区画壁部１ｃによって囲まれた空間が第１機器収納部Ｓ４であり、側壁部１ａ、底壁部１ｂ及び他方の幅区画壁部１ｄによって囲まれた空間が第２機器収納部Ｓ５である。上記第１機器収納部Ｓ４には、連通管６ａ及び開閉バルブ６ｂが収容されており、また第２機器収納部Ｓ５には、酸タンク７、第１酸ポンプ８、第２酸ポンプ９、アルカリタンク１０、アルカリポンプ１１及びｐＨ制御計１２が収容されている。   Similarly, in the boat shape, a space surrounded by the side wall 1a, the bottom wall 1b, and the one width partition wall 1c is the first device storage unit S4, and the side wall 1a, the bottom wall 1b, and the other width. The space surrounded by the partition wall 1d is the second device storage unit S5. The first equipment storage section S4 contains a communication pipe 6a and an opening / closing valve 6b. The second equipment storage section S5 contains an acid tank 7, a first acid pump 8, a second acid pump 9, an alkali. A tank 10, an alkali pump 11, and a pH controller 12 are accommodated.

４本の巻取ローラ２ａ〜２ｄは、図示しない動力源によって回転駆動されることにより海苔網を巻き取る駆動ローラであり、上述した第１酸処理槽Ｓ１、第２酸処理槽Ｓ２及びアルカリ処理槽Ｓ３のいずれかに分散配置される。すなわち、巻取ローラ２ａは、側壁部１ａ及び一方の前後区画壁部１ｅに平行対峙するように、また第１酸処理液Ｗ１に浸漬された状態で第１酸処理槽Ｓ１内に設けられた駆動ローラ（第１の巻取ローラ）である。   The four take-up rollers 2a to 2d are drive rollers that take up the laver net by being rotationally driven by a power source (not shown). The first acid treatment tank S1, the second acid treatment tank S2, and the alkali treatment described above. Dispersed in one of the tanks S3. That is, the winding roller 2a is provided in the first acid treatment tank S1 so as to be parallel to the side wall portion 1a and one of the front and rear partition wall portions 1e and immersed in the first acid treatment liquid W1. A drive roller (first winding roller).

巻取ローラ２ｂは、側壁部１ａ及び他方の前後区画壁部１ｆに平行対峙するように、また第２酸処理液Ｗ２に浸漬された状態で第２酸処理槽Ｓ２内に設けられた駆動ローラ（第１の巻取ローラ）である。２つの巻取ローラ２ｃ、２ｄは、２つ前後区画壁部１ｅ、１ｆに平行対峙するように、またアルカリ処理液Ｗ３に浸漬された状態でアルカリ処理槽Ｓ３内に設けられた駆動ローラ（第２の巻取ローラ）である。   The winding roller 2b is a drive roller provided in the second acid treatment tank S2 so as to be parallel to the side wall 1a and the other front and rear partition wall 1f and immersed in the second acid treatment liquid W2. (First winding roller). The two winding rollers 2c and 2d are driven rollers (first rollers) provided in the alkali treatment tank S3 so as to be in parallel with the two front and rear partition walls 1e and 1f and immersed in the alkali treatment liquid W3. 2 winding roller).

２つの補助ローラ３ａ、３ｂは、海苔網の第１酸処理槽Ｓ１あるいは第２酸処理槽Ｓ２からアルカリ処理槽Ｓ３への移動を補助する従動ローラである。これら２つの補助ローラ３ａ、３ｂは、第１酸処理槽Ｓ１とアルカリ処理槽Ｓ３との間及び第２酸処理槽Ｓ２とアルカリ処理槽Ｓ３との間に設けられている。すなわち、一方の補助ローラ３ａは、一方の前後区画壁部１ｅの頂部に巻取ローラ２ａ、２ｃと平行対峙するように設けられ、他方の補助ローラ３ｂは、他方の前後区画壁部１ｆの頂部に巻取ローラ２ｂ、２ｄと平行対峙するように設けられている。   The two auxiliary rollers 3a and 3b are driven rollers that assist the movement of the laver net from the first acid treatment tank S1 or the second acid treatment tank S2 to the alkali treatment tank S3. These two auxiliary rollers 3a and 3b are provided between the first acid treatment tank S1 and the alkali treatment tank S3 and between the second acid treatment tank S2 and the alkali treatment tank S3. That is, one auxiliary roller 3a is provided on the top of one front and rear partition wall 1e so as to be parallel to the winding rollers 2a and 2c, and the other auxiliary roller 3b is the top of the other front and rear partition wall 1f. Are arranged in parallel with the winding rollers 2b and 2d.

４つの水切ローラ４ａ１、４ａ２、４ｂ１、４ｂ２は、第１酸処理槽Ｓ１あるいは第２酸処理槽Ｓ２に浸漬された海苔網における第１酸処理液Ｗ１あるいは第２酸処理液Ｗ２の付着量を減少させる付着量減少手段である。すなわち、これら４つの水切ローラ４ａ１、４ａ２、４ｂ１、４ｂ２は、２つの補助ローラ３ａ、３ｂの前後に、海苔網に対して前進後退自在に設けられた従動ローラであり、海苔網に接触することにより当該海苔網に付着した第１酸処理液Ｗ１あるいは第２酸処理液Ｗ２を海苔網から脱離させる。   The four draining rollers 4a1, 4a2, 4b1, and 4b2 are configured to control the amount of the first acid treatment liquid W1 or the second acid treatment liquid W2 attached to the laver net immersed in the first acid treatment tank S1 or the second acid treatment tank S2. This is means for reducing the amount of adhesion to be reduced. That is, these four draining rollers 4a1, 4a2, 4b1, and 4b2 are driven rollers provided forward and backward with respect to the laver net before and after the two auxiliary rollers 3a and 3b, and contact the laver net. Thus, the first acid treatment liquid W1 or the second acid treatment liquid W2 attached to the laver net is detached from the laver net.

これら４つの水切ローラ４ａ１、４ａ２、４ｂ１、４ｂ２のうち、水切ローラ４ａ１は、一方の補助ローラ３ａと巻取ローラ２ａとの間に前進後退自在に設けられ、水切ローラ４ａ２は、一方の補助ローラ３ａと巻取ローラ２ｃとの間に前進後退自在に設けられ、水切ローラ４ｂ１は、他方の補助ローラ３ｂと巻取ローラ２ｂとの間に設けられ、水切ローラ４ｂ２は、他方の補助ローラ３ｂと巻取ローラ２ｄとの間に設けられている。   Of these four draining rollers 4a1, 4a2, 4b1, 4b2, the draining roller 4a1 is provided between the one auxiliary roller 3a and the take-up roller 2a so as to be able to advance and retreat, and the draining roller 4a2 is one auxiliary roller. 3a and the take-up roller 2c are provided so as to be able to move forward and backward, the draining roller 4b1 is provided between the other auxiliary roller 3b and the take-up roller 2b, and the draining roller 4b2 is provided with the other auxiliary roller 3b. It is provided between the winding roller 2d.

３つの案内ローラ５ａ〜５ｃは、第１酸処理槽Ｓ１、第２酸処理槽Ｓ２及び前記アルカリ処理槽の上側に設けられ、海苔網を案内する網案内手段である。これら３つの案内ローラ５ａ〜５ｃのうち、案内ローラ５ａは、図示するように一方の補助ローラ３ａの上方に設けられ、案内ローラ５ｂは、他方の補助ローラ３ｂの上方かつ案内ローラ５ａと同一高さに設けられ、また案内ローラ５ｃは、２つの案内ローラ５ａ、５ｂとの中間位置かつ同一高さに設けられている。   The three guide rollers 5a to 5c are net guide means that are provided above the first acid treatment tank S1, the second acid treatment tank S2, and the alkali treatment tank, and guide the laver net. Of these three guide rollers 5a to 5c, the guide roller 5a is provided above one auxiliary roller 3a as shown in the figure, and the guide roller 5b is above the other auxiliary roller 3b and at the same height as the guide roller 5a. The guide roller 5c is provided at an intermediate position and at the same height as the two guide rollers 5a and 5b.

連通管６ａは、第１酸処理液Ｗ１と第２酸処理液Ｗ２との流通が可能なように第１酸処理槽Ｓ１と第２酸処理槽Ｓ２とを相互接続する連通手段である。開閉バルブ６ｂは、このような連通管６ａの途中部に設けられ、第１酸処理液Ｗ１と第２酸処理液Ｗ２との流通を可能あるいは遮断する手動開閉弁である。この開閉バルブ６ｂが開状態に設定されると、第１酸処理液Ｗ１と第２酸処理液Ｗ２との流通が可能となり、第１酸処理液Ｗ１のｐＨ値と第２酸処理液Ｗ２のｐＨ値とが均一化される。   The communication pipe 6a is a communication means for interconnecting the first acid treatment tank S1 and the second acid treatment tank S2 so that the first acid treatment liquid W1 and the second acid treatment liquid W2 can be circulated. The on-off valve 6b is a manual on-off valve that is provided in the middle of such a communication pipe 6a and enables or blocks the flow of the first acid treatment liquid W1 and the second acid treatment liquid W2. When the on-off valve 6b is set to the open state, the first acid treatment liquid W1 and the second acid treatment liquid W2 can be circulated, and the pH value of the first acid treatment liquid W1 and the second acid treatment liquid W2 The pH value is made uniform.

酸タンク７は、酸原液Ｇ１を貯蔵する所定容量の容器である。この酸タンク７は、所定の配管によって第１酸ポンプ８及び第２酸ポンプ９と接続されており、当該第１酸ポンプ８及び第２酸ポンプ９に酸原液Ｇ１を供給する。なお、上記酸原液は、所定ｐＨ値を有する酸の水溶液であり、第１酸処理液Ｗ１と第２酸処理液Ｗ２よりも低いｐＨ値つまり高い酸性度を有する。また、上記酸は、例えばリンゴ酸や乳酸、クエン酸等の有機酸あるいは塩酸である。   The acid tank 7 is a container having a predetermined capacity for storing the acid stock solution G1. The acid tank 7 is connected to the first acid pump 8 and the second acid pump 9 by a predetermined pipe, and supplies the acid stock solution G1 to the first acid pump 8 and the second acid pump 9. The acid stock solution is an aqueous solution of an acid having a predetermined pH value, and has a lower pH value, that is, higher acidity than the first acid treatment solution W1 and the second acid treatment solution W2. The acid is, for example, an organic acid such as malic acid, lactic acid or citric acid, or hydrochloric acid.

第１酸ポンプ８は、ｐＨ制御計１２から入力される操作信号に基づいて動作する容量ポンプであり、所定の配管によって第１酸処理槽Ｓ１と接続されている。この第１酸ポンプ８は、上記操作信号に応じた流量の酸原液Ｇ１を酸タンク７から汲み出して第１酸処理槽Ｓ１に供給する。なお、第１酸処理槽Ｓ１における酸原液Ｇ１の供給位置は、酸原液Ｇ１の比重が第１酸処理液Ｗ１の比重よりも重いので、第１酸処理液Ｗ１に対する混合性を高めるために第１酸処理槽Ｓ１の上部に設定される。   The 1st acid pump 8 is a capacity | capacitance pump which operate | moves based on the operation signal input from the pH controller 12, and is connected with 1st acid treatment tank S1 by predetermined piping. The first acid pump 8 pumps out the acid stock solution G1 having a flow rate corresponding to the operation signal from the acid tank 7 and supplies it to the first acid treatment tank S1. In addition, since the specific gravity of the acid raw solution G1 is heavier than the specific gravity of the first acid treatment liquid W1, the supply position of the acid raw solution G1 in the first acid treatment tank S1 is the first position in order to improve the mixing property with the first acid treatment liquid W1. It is set in the upper part of 1 acid treatment tank S1.

第２酸ポンプ９は、ｐＨ制御計１２から入力される操作信号に基づいて動作する容量ポンプであり、所定の配管によって第２酸処理槽Ｓ２と接続されている。この第２酸ポンプ９は、上記操作信号に応じた流量の酸原液Ｇ１を酸タンク７から汲み出して第２酸処理槽Ｓ２に供給する。なお、第２酸処理槽Ｓ２における酸原液Ｇ１の供給位置は、上述した第１酸処理槽Ｓ１と同様に第２酸処理槽Ｓ２の上部に設定される。   The 2nd acid pump 9 is a capacity | capacitance pump which operate | moves based on the operation signal input from the pH controller 12, and is connected with 2nd acid treatment tank S2 by predetermined piping. The second acid pump 9 pumps the acid stock solution G1 having a flow rate corresponding to the operation signal from the acid tank 7 and supplies it to the second acid treatment tank S2. In addition, the supply position of the acid stock solution G1 in the second acid treatment tank S2 is set in the upper part of the second acid treatment tank S2, similarly to the first acid treatment tank S1 described above.

アルカリタンク１０は、アルカリ原液Ｇ２を貯蔵する所定容量の容器である。このアルカリタンク１０は、所定の配管によってアルカリポンプ１１と接続されており、当該アルカリポンプ１１にアルカリ原液Ｇ２を供給する。なお、このアルカリ原液Ｇ２は、所定ｐＨ値を有するアルカリの水溶液であり、アルカリ処理液Ｗ３よりも高いｐＨ値つまり高いアルカリ性度を有する。また、上記アルカリは、例えば水酸化ナトリウムである。   The alkali tank 10 is a container having a predetermined capacity for storing the alkali stock solution G2. The alkali tank 10 is connected to an alkali pump 11 by a predetermined pipe, and supplies the alkali stock solution G2 to the alkali pump 11. The alkaline stock solution G2 is an alkaline aqueous solution having a predetermined pH value, and has a higher pH value, that is, a higher alkalinity than the alkaline processing liquid W3. The alkali is, for example, sodium hydroxide.

アルカリポンプ１１は、ｐＨ制御計１２から入力される操作信号に基づいて動作する容量ポンプであり、所定の配管によってアルカリ処理槽Ｓ３と接続されている。このアルカリポンプ１１は、上記操作信号に応じた流量のアルカリ原液Ｇ３をアルカリタンク１０から汲み出してアルカリ処理槽Ｓ３に供給する。なお、アルカリ処理槽Ｓ３におけるアルカリ原液Ｇ３の供給位置は、アルカリ原液Ｇ３の比重がアルカリ処理液Ｗ３の比重よりも重いので、アルカリ処理液Ｗ３に対する混合性を高めるためにアルカリ処理槽Ｓ３の上部に設定される。   The alkali pump 11 is a capacity pump that operates based on an operation signal input from the pH controller 12, and is connected to the alkali treatment tank S3 by a predetermined pipe. The alkali pump 11 pumps out an alkali stock solution G3 having a flow rate corresponding to the operation signal from the alkali tank 10 and supplies it to the alkali treatment tank S3. In addition, since the specific gravity of the alkali raw solution G3 is heavier than the specific gravity of the alkaline treatment liquid W3, the supply position of the alkaline raw solution G3 in the alkaline treatment tank S3 is located above the alkaline treatment tank S3 in order to improve the mixing property with the alkaline treatment liquid W3. Is set.

ｐＨ制御計１２は、３つのｐＨセンサ１３〜１５から入力される検出値と予め記憶している制御しきい値とに基づいて、第１酸ポンプ８、第２酸ポンプ９及びアルカリポンプ１１をフィードバック制御する制御装置である。すなわち、このｐＨ制御計１２は、第１酸処理液Ｗ１、第２酸処理液Ｗ２、アルカリ処理液Ｗ３のｐＨ値が制御しきい値を維持するように第１酸ポンプ８、第２酸ポンプ９及びアルカリポンプ１１を自動制御する。   The pH controller 12 controls the first acid pump 8, the second acid pump 9, and the alkali pump 11 based on the detection values input from the three pH sensors 13 to 15 and the control threshold value stored in advance. A control device that performs feedback control. That is, the pH controller 12 includes the first acid pump 8 and the second acid pump so that the pH values of the first acid treatment liquid W1, the second acid treatment liquid W2, and the alkali treatment liquid W3 maintain the control threshold values. 9 and the alkali pump 11 are automatically controlled.

３つのｐＨセンサ１３〜１５は、第１酸処理液Ｗ１、第２酸処理液Ｗ２あるいはアルカリ処理液Ｗ３のｐＨ値を検出する検出器である。これら３つのｐＨセンサ１３〜１５は、ｐＨ制御計１２に電気的に接続されており、ｐＨ検出値をｐＨ制御計１２に出力する。   The three pH sensors 13 to 15 are detectors that detect the pH value of the first acid treatment liquid W1, the second acid treatment liquid W2, or the alkali treatment liquid W3. These three pH sensors 13 to 15 are electrically connected to the pH controller 12 and output a detected pH value to the pH controller 12.

これらｐＨセンサ１３〜１５のうち、ｐＨセンサ１３は、第１酸処理液Ｗ１に浸漬された状態で第１酸処理槽Ｓ１内に設けられており、第１酸処理液Ｗ１のｐＨ値を検出する。このｐＨセンサ１３は、図１に示すように第１酸処理槽Ｓ１の角部に設けられており、また第１酸処理液Ｗ１の深さ方向の位置として船本体１の底壁部１ｂから若干高い位置に設けられている。   Among these pH sensors 13 to 15, the pH sensor 13 is provided in the first acid treatment tank S <b> 1 while being immersed in the first acid treatment liquid W <b> 1, and detects the pH value of the first acid treatment liquid W <b> 1. To do. As shown in FIG. 1, the pH sensor 13 is provided at the corner of the first acid treatment tank S1, and the position of the first acid treatment liquid W1 in the depth direction extends from the bottom wall 1b of the ship body 1. It is provided at a slightly higher position.

ｐＨセンサ１４は、第２酸処理液Ｗ２に浸漬された状態で第２酸処理槽Ｓ２内に設けられており、第２酸処理液Ｗ２のｐＨ値を検出する。このｐＨセンサ１４は、図１に示すように第２酸処理槽Ｓ２の角部に設けられており、また第２酸処理液Ｗ２の深さ方向の位置として船本体１の底壁部１ｂから若干高い位置に設けられている。   The pH sensor 14 is provided in the second acid treatment tank S2 while being immersed in the second acid treatment liquid W2, and detects the pH value of the second acid treatment liquid W2. As shown in FIG. 1, the pH sensor 14 is provided at the corner of the second acid treatment tank S2, and the position of the second acid treatment liquid W2 in the depth direction is from the bottom wall 1b of the ship body 1. It is provided at a slightly higher position.

また、ｐＨセンサ１５は、アルカリ処理液Ｗ３に浸漬された状態でアルカリ処理槽Ｓ３内に設けられており、アルカリ処理液Ｗ３のｐＨ値を検出する。このｐＨセンサ１５は、図１に示すようにアルカリ処理槽Ｓ３において２つの巻取ローラ２ｃ、２ｄの中間位置に設けられており、またアルカリ処理槽Ｓ３の深さ方向の位置として船本体１の底壁部１ｂから若干高い位置に設けられている。   Moreover, the pH sensor 15 is provided in the alkali treatment tank S3 in a state immersed in the alkali treatment liquid W3, and detects the pH value of the alkali treatment liquid W3. As shown in FIG. 1, the pH sensor 15 is provided at an intermediate position between the two winding rollers 2c and 2d in the alkali treatment tank S3, and the position of the ship body 1 as a position in the depth direction of the alkali treatment tank S3. It is provided at a position slightly higher than the bottom wall 1b.

次に、このように構成された箱型船Ａの動作について、図３を参照して詳しく説明する。   Next, the operation of the box-type ship A configured as described above will be described in detail with reference to FIG.

この箱型船Ａは、前進航行と後進航行とを交互に繰り返すことにより、海苔の養殖現場に複数条に亘って隣接配置された海苔網を順次巻き取ることにより海苔網に酸処理を施すと共に、巻き取ることによって酸処理が完了した海苔網を順次巻き出すことにより複数条の海苔網を複数条に亘って隣接配置された状態に戻す。   In this box-type ship A, the seaweed net is subjected to acid treatment by alternately winding forward and backward sailing to wind up the seaweed net adjacently arranged over a plurality of strips at the seaweed cultivation site. The plurality of laver nets are returned to a state where they are adjacently arranged across the plurality of strips by sequentially unwinding the laver mesh that has been subjected to the acid treatment by winding.

すなわち、図３（ａ）に示すように、箱型船Ａが前進航行する場合、つまり図３（ａ）に矢印で示すように箱型船Ａが第１酸処理槽Ｓ１を先行させて航行する場合、前方から侵入してくる海苔網Ｎ１を巻取ローラ２ａで順次巻き取ると共に、巻取ローラ２ｃに先に巻き取られていた海苔網Ｎ２を後方に順次巻き出す。そして、巻取ローラ２ａに巻き取られた海苔網Ｎ１は、第１酸処理槽Ｓ１の第１酸処理液Ｗ１に浸漬されることにより、酸処理が施される。   That is, as shown in FIG. 3 (a), when the box-shaped ship A navigates forward, that is, as shown by the arrow in FIG. 3 (a), the box-shaped ship A navigates with the first acid treatment tank S1 in advance. In this case, the laver net N1 entering from the front is sequentially wound by the winding roller 2a, and the laver net N2 previously wound on the winding roller 2c is sequentially wound backward. And the laver net N1 wound up by the winding roller 2a is immersed in the first acid treatment liquid W1 of the first acid treatment tank S1, thereby being subjected to acid treatment.

ここで、巻取ローラ２ｃの海苔網Ｎ２は、図３（ｂ）に示すように、前回の前進航行時に巻取ローラ２ａに巻き取られ第１酸処理槽Ｓ１の第１酸処理液Ｗ１で酸処理が施されたものであり、直前の後進航行時において巻取ローラ２ａから巻取ローラ２ｃに巻き替えられたものである。すなわち、図３（ａ）に示すように、箱型船Ａが前進航行するとき、前回の後進航行時に巻取ローラ２ｂに巻き取られ、第２酸処理槽Ｓ２の第２酸処理液Ｗ２で酸処理が施された海苔網Ｎ１は、巻取ローラ２ｂから巻取ローラ２ｄに巻き替えられることにより、アルカリ処理槽Ｓ３のアルカリ処理液Ｗ３に浸漬されて中和処理される。   Here, as shown in FIG. 3 (b), the laver net N2 of the winding roller 2c is wound around the winding roller 2a during the previous forward travel and is the first acid treatment liquid W1 in the first acid treatment tank S1. It has been subjected to an acid treatment and has been wound from the winding roller 2a to the winding roller 2c during the last reverse travel. That is, as shown in FIG. 3 (a), when the box-shaped ship A travels forward, it is wound around the winding roller 2b during the previous backward travel and is taken up by the second acid treatment liquid W2 in the second acid treatment tank S2. The seaweed net N1 that has been subjected to the acid treatment is rewound from the winding roller 2b to the winding roller 2d, so that it is immersed in the alkali treatment liquid W3 in the alkali treatment tank S3 and neutralized.

このように、箱型船Ａの前進航行では、海苔網Ｎ１の巻き取りと中和処理された海苔網Ｎ２の巻き出し、また海苔網Ｎ３の巻き替えが同時並行的に行われる。そして、同時並行的な３つの動作の間において、巻取ローラ２ａに巻き取られた海苔網Ｎ１は、第１酸処理槽Ｓ１の第１酸処理液Ｗ１で酸処理され、また巻取ローラ２ｂに先行して巻き取られた海苔網Ｎ３は、第２酸処理槽Ｓ２の第２酸処理液Ｗ２に浸漬されて酸処理が施された後にアルカリ処理槽Ｓ３のアルカリ処理液Ｗ３に浸漬されて中和処理される。   Thus, in the forward sailing of the box-type ship A, the winding of the laver net N1, the unwinding of the neutralized laver net N2, and the rewinding of the laver net N3 are simultaneously performed. During the three simultaneous operations, the laver net N1 wound around the winding roller 2a is acid-treated with the first acid treatment liquid W1 in the first acid treatment tank S1, and the winding roller 2b. The seaweed net N3 wound up prior to is immersed in the second acid treatment liquid W2 of the second acid treatment tank S2 and subjected to acid treatment, and then immersed in the alkali treatment liquid W3 of the alkali treatment tank S3. Neutralized.

一方、図３（ｂ）に示すように、箱型船Ａが後進航行する場合、つまり図３（ｂ）に矢印で示すように箱型船Ａが第２酸処理槽Ｓ２を先行させて航行する場合、前方から侵入してくる海苔網Ｎ４を巻取ローラ２ｂで順次巻き取ると共に、巻取ローラ２ｄに先に巻き取られていた海苔網Ｎ５を後方に順次巻き出す。そして、巻取ローラ２ｂに巻き取られた海苔網Ｎ４は、第２酸処理槽Ｓ２の第２酸処理液Ｗ２に浸漬されることにより、酸処理が施される。   On the other hand, as shown in FIG. 3 (b), when the box-type ship A travels backward, that is, as shown by the arrow in FIG. 3 (b), the box-type ship A navigates with the second acid treatment tank S2 in advance. In this case, the laver net N4 entering from the front is sequentially wound by the winding roller 2b, and the laver net N5 previously wound around the winding roller 2d is sequentially wound backward. And the laver net N4 wound up by the winding roller 2b is immersed in the second acid treatment liquid W2 of the second acid treatment tank S2, thereby being subjected to acid treatment.

ここで、巻取ローラ２ｄの海苔網Ｎ２は、図３（ａ）に示すように、前回の後進航行時に巻取ローラ２ｂに巻き取られ第２酸処理槽Ｓ２の第２酸処理液Ｗ２で酸処理が施されたものであり、直前の前進航行時において巻取ローラ２ｂから巻取ローラ２ｄに巻き替えられたものである。すなわち、図３（ｂ）に示すように、箱型船Ａが後進航行するとき、前回の前進航行時に巻取ローラ２ａに巻き取られ、第１酸処理槽Ｓ１の第１酸処理液Ｗ１で酸処理が施された海苔網Ｎ６は、巻取ローラ２ａから巻取ローラ２ｃに巻き替えられることにより、アルカリ処理槽Ｓ３のアルカリ処理液Ｗ３に浸漬されて中和処理される。   Here, as shown in FIG. 3 (a), the laver net N2 of the winding roller 2d is wound around the winding roller 2b during the last reverse travel, and the second acid treatment liquid W2 in the second acid treatment tank S2. It has been subjected to an acid treatment and has been wound from the winding roller 2b to the winding roller 2d during the last forward travel. That is, as shown in FIG. 3B, when the box-shaped ship A travels backward, it is wound around the take-up roller 2a during the previous forward travel, and the first acid treatment liquid W1 in the first acid treatment tank S1. The seaweed net N6 that has been subjected to the acid treatment is rewound from the take-up roller 2a to the take-up roller 2c, so that it is immersed in the alkali treatment liquid W3 in the alkali treatment tank S3 and neutralized.

このように、箱型船Ａの後進航行では、海苔網Ｎ４の巻き取りと中和処理された海苔網Ｎ５の巻き出し、また海苔網Ｎ６の巻き替えが同時並行的に行われる。このような同時並行的な３つの動作は、アルカリ処理槽Ｓ３内に２つの巻取ローラ２ｃ、２ｄを設けることによって実現される。   In this way, in the reverse travel of the box-type ship A, the winding of the laver net N4, the unwinding of the neutralized laver net N5, and the rewinding of the laver net N6 are simultaneously performed. Such three simultaneous operations are realized by providing two winding rollers 2c and 2d in the alkali treatment tank S3.

また、このような同時並行的な３つの動作の間において、巻取ローラ２ｂに巻き取られた海苔網Ｎ４は、第２酸処理槽Ｓ２の第２酸処理液Ｗ２で酸処理され、また巻取ローラ２ａに先行して巻き取られた海苔網Ｎ６は、第１酸処理槽Ｓ１の第１酸処理液Ｗ１に浸漬されて酸処理が施された後にアルカリ処理槽Ｓ３のアルカリ処理液Ｗ３に浸漬されて中和処理される。   In addition, during such three simultaneous operations, the laver net N4 wound around the winding roller 2b is acid-treated with the second acid treatment liquid W2 in the second acid treatment tank S2, and also wound. The laver net N6 wound up prior to the take-up roller 2a is immersed in the first acid treatment liquid W1 in the first acid treatment tank S1 and subjected to acid treatment, and then applied to the alkali treatment liquid W3 in the alkali treatment tank S3. It is immersed and neutralized.

すなわち、箱型船Ａでは、第１酸処理槽Ｓ１の巻取ローラ２ａと対を成すようにアルカリ処理槽Ｓ３内に一方の巻取ローラ２ｃを設け、また第２酸処理槽Ｓ２の巻取ローラ２ｂと対を成すようにアルカリ処理槽Ｓ３内に他方の巻取ローラ２ｄを設けるので、上記３つの動作を同時並行的なに行うことができる。この結果として、この箱型船Ａによれば、海苔網Ｎ１〜Ｎ６の酸処理及び中和処理を極めて効率的に行うことが可能である。   That is, in the box-type ship A, one winding roller 2c is provided in the alkali treatment tank S3 so as to form a pair with the winding roller 2a of the first acid treatment tank S1, and the winding of the second acid treatment tank S2 is performed. Since the other winding roller 2d is provided in the alkali treatment tank S3 so as to form a pair with the roller 2b, the above three operations can be performed in parallel. As a result, according to this box-shaped ship A, it is possible to perform the acid treatment and neutralization treatment of the laver nets N1 to N6 very efficiently.

このような箱型船Ａの基本動作において、ｐＨ制御計１２がｐＨセンサ１３〜１５のｐＨ検出値に基づいて第１酸ポンプ８、第２酸ポンプ９及びアルカリポンプ１１を自動制御するので、第１酸処理液Ｗ１、第２酸処理液Ｗ２、アルカリ処理液Ｗ３のｐＨ値は所定の制御しきい値に維持される。したがって、各海苔網Ｎ１、Ｎ３、Ｎ４、Ｎ６は、確実に酸処理されると共に確実に中和処理される。   In such a basic operation of the boat A, the pH controller 12 automatically controls the first acid pump 8, the second acid pump 9, and the alkali pump 11 based on the pH detection values of the pH sensors 13-15. The pH values of the first acid treatment liquid W1, the second acid treatment liquid W2, and the alkali treatment liquid W3 are maintained at predetermined control threshold values. Therefore, each laver net N1, N3, N4, N6 is surely acid-treated and reliably neutralized.

また、第１酸処理槽Ｓ１と第２酸処理槽Ｓ２との間には連通管６ａが設けられているので、第１酸処理液Ｗ１と第２酸処理液Ｗ２との間のｐＨ値の均一化が図られ、よって第１酸処理槽Ｓ１で行われる酸処理と第２酸処理槽Ｓ２で酸処理との均一化を実現することができる。すなわち、箱型船Ａの航行方向によって酸処理の品質に差異が生じず、常に安定した酸処理を実現することが可能である。   Moreover, since the communication pipe 6a is provided between the first acid treatment tank S1 and the second acid treatment tank S2, the pH value between the first acid treatment liquid W1 and the second acid treatment liquid W2 is increased. Homogenization is achieved, so that the acid treatment performed in the first acid treatment tank S1 and the acid treatment in the second acid treatment tank S2 can be made uniform. That is, there is no difference in the quality of the acid treatment depending on the navigation direction of the box-type ship A, and it is possible to always realize a stable acid treatment.

また、巻取ローラ２ａから巻取ローラ２ｃへの海苔網Ｎ６の巻き替え、つまり第１酸処理槽Ｓ１からアルカリ処理槽Ｓ３への海苔網Ｎ６の移動は一方の補助ローラ３ａを経由して行われ、また巻取ローラ２ｂから巻取ローラ２ｄへの海苔網Ｎ３の巻き替え、つまり第２酸処理槽Ｓ２からアルカリ処理槽Ｓ３への海苔網Ｎ３の移動は他方の補助ローラ３ｂ（従動ローラ）を経由して行われる。したがって、海苔網Ｎ３，Ｎ６の巻き替え時に当該海苔網Ｎ３，Ｎ６に作用する機械的なストレスを緩和することが可能であり、この結果として海苔網Ｎ３，Ｎ６から海苔が脱離することを抑制あるいは防止することが可能である。   In addition, rewinding of the laver net N6 from the winding roller 2a to the winding roller 2c, that is, the movement of the laver net N6 from the first acid treatment tank S1 to the alkaline treatment tank S3 is performed via one auxiliary roller 3a. In addition, rewinding of the laver net N3 from the winding roller 2b to the winding roller 2d, that is, the movement of the laver net N3 from the second acid treatment tank S2 to the alkaline treatment tank S3 is the other auxiliary roller 3b (driven roller). Is done via. Therefore, it is possible to relieve the mechanical stress acting on the seaweed nets N3 and N6 at the time of rewinding the seaweed nets N3 and N6. As a result, it is possible to prevent the laver from being detached from the seaweed nets N3 and N6. Alternatively, it can be prevented.

また、第１酸処理槽Ｓ１からアルカリ処理槽Ｓ３への海苔網Ｎ６の移動時には一方の補助ローラ３ａの手前で水切ローラ４ａ１が海苔網Ｎ６に接触し、第２酸処理槽Ｓ２からアルカリ処理槽Ｓ３への海苔網Ｎ３の移動時には他方の補助ローラ３ｂの手前で水切ローラ４ｂ１が海苔網Ｎ３に接触する。このような水切ローラ４ａ１、４ｂ１は、海苔網Ｎ３、Ｎ６から第１酸処理液Ｗ１あるいは第２酸処理液Ｗ２をある程度離脱させる、つまり海苔網Ｎ３、Ｎ６に対して第１酸処理液Ｗ１あるいは第２酸処理液Ｗ２の水切り作用を呈するので、第１酸処理槽Ｓ１における第１酸処理液Ｗ１の減少及び第２酸処理槽Ｓ２における第２酸処理液Ｗ２の減少を抑制することが可能である。   Further, when the laver net N6 is moved from the first acid treatment tank S1 to the alkaline treatment tank S3, the draining roller 4a1 comes into contact with the laver net N6 before one auxiliary roller 3a, and the second acid treatment tank S2 to the alkaline treatment tank. When the laver net N3 moves to S3, the draining roller 4b1 comes into contact with the laver net N3 before the other auxiliary roller 3b. Such draining rollers 4a1, 4b1 separate the first acid treatment liquid W1 or the second acid treatment liquid W2 from the seaweed nets N3, N6 to some extent, that is, the first acid treatment liquid W1 or the seaweed nets N3, N6. Since the draining action of the second acid treatment liquid W2 is exhibited, it is possible to suppress a decrease in the first acid treatment liquid W1 in the first acid treatment tank S1 and a decrease in the second acid treatment liquid W2 in the second acid treatment tank S2. It is.

さらに、海苔網Ｎ２は、他方の補助ローラ３ｂよりも高い位置に設けられた案内ローラ５ｂ、５ｃによって案内されて海上に送り出される。また、海苔網Ｎ５は、一方の補助ローラ３ａよりも高い位置に設けられた案内ローラ５ａ、５ｃによって案内されて海上に送り出される。したがって、この箱型船Ａによれば、海苔網Ｎ３、Ｎ６の巻き替えに干渉することなく、海苔網Ｎ２、Ｎ５を確実に海上に送り出すことが可能である。   Furthermore, the laver net N2 is guided by the guide rollers 5b and 5c provided at a position higher than the other auxiliary roller 3b and sent out to the sea. The laver net N5 is guided by guide rollers 5a and 5c provided at a position higher than the one auxiliary roller 3a and sent out to the sea. Therefore, according to this box ship A, it is possible to reliably send out the laver nets N2 and N5 to the sea without interfering with the rewinding of the laver nets N3 and N6.

なお、本発明は上記実施形態に限定されるものではなく、例えば以下のような変形例が考えられる。
（１）上記実施形態では、４本の巻取ローラ２ａ〜２ｄを備え、海苔網を船本体１内に巻き取る箱型船Ａについて説明したが、本発明はこれに限定されない。すなわち、本発明は、アルカリ処理液Ｗ３を貯留するアルカリ処理槽Ｓ３を備え、酸処理後の海苔網をアルカリ処理液Ｗ３に浸漬させて中和処理することを本旨とするものであり、この中和処理以外の機能構成要素は適宜削除しても良い。 In addition, this invention is not limited to the said embodiment, For example, the following modifications can be considered.
(1) Although the box type ship A provided with the four winding rollers 2a to 2d and winding the laver net in the ship body 1 has been described in the above embodiment, the present invention is not limited to this. That is, the present invention includes an alkali treatment tank S3 for storing the alkali treatment liquid W3, and is intended to neutralize the seaweed net after acid treatment by immersing it in the alkali treatment liquid W3. Functional components other than the sum processing may be deleted as appropriate.

（２）上記実施形態では、２つの巻取ローラ２ｃ、２ｄ（第２の巻取ローラ）をアルカリ処理槽Ｓ３内に設けたが、本発明はこれに限定されない。アルカリ処理槽Ｓ３内に設ける第２の巻取ローラを必要に応じて１本としても良い。 (2) In the above embodiment, the two winding rollers 2c and 2d (second winding rollers) are provided in the alkali treatment tank S3, but the present invention is not limited to this. It is good also as one 2nd winding roller provided in alkali processing tank S3 as needed.

（３）上記実施形態では、一方の補助ローラ３ａを一方の前後区画壁部１ｅの頂部に設け、また他方の補助ローラ３ｂを他方の前後区画壁部１ｆの頂部に設けたが、本発明はこれに限定されない。例えば船本体１の一部である前後区画壁部１ｅ、１ｆを補助ローラ３ａ、３ｂの支持構造物として利用するのではなく、船本体１に別途設けた支持構造物に補助ローラ３ａ、３ｂを支持させても良い。 (3) In the above embodiment, one auxiliary roller 3a is provided on the top of one front and rear partition wall 1e, and the other auxiliary roller 3b is provided on the top of the other front and rear partition wall 1f. It is not limited to this. For example, instead of using the front and rear partition wall portions 1e and 1f, which are part of the ship body 1, as the support structure for the auxiliary rollers 3a and 3b, the auxiliary rollers 3a and 3b are attached to the support structure separately provided on the ship body 1. It may be supported.

（４）上記実施形態では、第１酸処理槽Ｓ１にｐＨセンサ１３を設け、第２酸処理槽Ｓ２にｐＨセンサ１４を設けたが、本発明はこれに限定されない。第１酸処理槽Ｓ１と第２酸処理槽Ｓ２とは連通管６ａによって連通しているので、ｐＨセンサ１３あるいはｐＨセンサ１４のいずれか一方を設けても良い。 (4) In the above embodiment, the pH sensor 13 is provided in the first acid treatment tank S1, and the pH sensor 14 is provided in the second acid treatment tank S2, but the present invention is not limited to this. Since the first acid treatment tank S1 and the second acid treatment tank S2 communicate with each other through the communication pipe 6a, either the pH sensor 13 or the pH sensor 14 may be provided.

（５）上記実施形態では、２つの前後区画壁部１ｅ、１ｆの各頂部に補助ローラ３ａ、３ｂを設けたが、本発明はこれに限定されない。このような２つの補助ローラ３ａ、３ｂに加えて、側壁部１ａにおいて２つの前後区画壁部１ｅ、１ｆに平行対峙する一対の部位（長辺部位）に補助ローラをそれぞれ設けても良い。このような補助ローラを設けることにより、海苔網を巻取ローラ２ａ、２ｂに巻き取る際に海苔網に作用するストレスを軽減することが可能である。 (5) In the above embodiment, the auxiliary rollers 3a and 3b are provided at the tops of the two front and rear partition walls 1e and 1f, but the present invention is not limited to this. In addition to the two auxiliary rollers 3a and 3b, auxiliary rollers may be provided in a pair of portions (long-side portions) facing the two front and rear partition wall portions 1e and 1f in the side wall portion 1a. By providing such an auxiliary roller, it is possible to reduce stress acting on the laver net when the laver net is wound around the winding rollers 2a and 2b.

（６）上記実施形態では、第１酸処理槽Ｓ１及び第２酸処理槽Ｓ２に対応するように第１酸ポンプ８及び第２酸ポンプ９を設けたが、本発明はこれに限定されない。第１酸処理槽Ｓ１と第２酸処理槽Ｓ２とは連通管６ａによって連通しているので、第１酸処理槽Ｓ１あるいは第２酸処理槽Ｓ２のいずれか一方のみに酸原液Ｇ１を供給しても良い。 (6) In the above embodiment, the first acid pump 8 and the second acid pump 9 are provided so as to correspond to the first acid treatment tank S1 and the second acid treatment tank S2, but the present invention is not limited to this. Since the first acid treatment tank S1 and the second acid treatment tank S2 communicate with each other through the communication pipe 6a, the acid stock solution G1 is supplied to only one of the first acid treatment tank S1 and the second acid treatment tank S2. May be.

（７）上記実施形態では、２つの補助ローラ３ａ、３ｂの前後に水切ローラ４ａ１、４ａ２、４ｂ１、４ｂ２を設けたが、本発明はこれに限定されない。必要に応じて、４つの水切ローラ４ａ１、４ａ２、４ｂ１、４ｂ２のうち、２つの水切ローラ４ａ２、４ｂ２を削除しても良い。 (7) In the above embodiment, the draining rollers 4a1, 4a2, 4b1, 4b2 are provided before and after the two auxiliary rollers 3a, 3b, but the present invention is not limited to this. If necessary, two draining rollers 4a2, 4b2 may be deleted from the four draining rollers 4a1, 4a2, 4b1, 4b2.

Ａ 箱型船（海苔網処理船）
Ｎ１〜Ｎ６ 海苔網
Ｇ１ 酸原液
Ｇ２ アルカリ原液
Ｓ１ 第１酸処理槽
Ｓ２ 第２酸処理槽
Ｓ３ アルカリ処理槽
Ｓ４ 第１機器収納部
Ｓ５ 第２機器収納部
Ｗ１ 第１酸処理液
Ｗ２ 第２酸処理液
Ｗ３ アルカリ処理液
１ 船本体
１ａ 側壁部
１ｂ 底壁部
１ｃ、１ｄ 幅区画壁部
１ｅ、１ｆ 前後区画壁部
２ａ〜２ｄ 巻取ローラ
３ａ、３ｂ 補助ローラ
４ａ１、４ａ２、４ｂ１、４ｂ２ 水切ローラ
５ａ〜５ｃ 案内ローラ
６ａ 連通管
６ｂ 開閉バルブ
７ 酸タンク
８ 第１酸ポンプ
９ 第２酸ポンプ
１０ アルカリタンク
１１ アルカリポンプ
１２ ｐＨ制御計
１３〜１５ ｐＨセンサ A Box type ship
N1-N6 Nori mesh G1 Acid stock solution G2 Alkali stock solution S1 First acid treatment tank S2 Second acid treatment tank S3 Alkali treatment tank S4 First equipment storage section S5 Second equipment storage section W1 First acid treatment liquid W2 Second acid treatment Liquid W3 Alkali treatment liquid 1 Ship body 1a Side wall 1b Bottom wall 1c, 1d Width partition wall 1e, 1f Front and rear partition walls 2a to 2d Winding roller 3a, 3b Auxiliary roller 4a1, 4a2, 4b1, 4b2 Draining roller 5a -5c Guide roller 6a Communication pipe 6b Open / close valve 7 Acid tank 8 First acid pump 9 Second acid pump 10 Alkaline tank 11 Alkaline pump 12 pH controller 13-15 pH sensor

Claims (8)

酸処理液を貯留する酸処理槽を備え、海苔が付着した海苔網を前記酸処理液に浸漬させて酸処理する海苔網処理船であって、
アルカリ処理液を貯留するアルカリ処理槽を備え、酸処理後の前記海苔網を前記アルカリ処理液に浸漬させて中和処理することを特徴とする海苔網処理船。 A seaweed net processing vessel comprising an acid treatment tank for storing an acid treatment liquid, and dipping a laver net attached with nori into the acid treatment liquid to perform acid treatment,
A seaweed netting vessel comprising an alkali treatment tank for storing an alkali treatment liquid, wherein the seaweed net after acid treatment is immersed in the alkali treatment liquid and neutralized. 前記酸処理槽には前記海苔網を巻き取る第１の巻取ローラが設けられ、前記アルカリ処理槽には前記海苔網を巻き取る第２の巻取ローラが設けられ、前記第１の巻取ローラから前記第２の巻取ローラに前記海苔網を巻き替えることを特徴とする請求項１に記載の海苔網処理船。   The acid treatment tank is provided with a first winding roller for winding the laver net, and the alkali treatment tank is provided with a second winding roller for winding the laver net, and the first winding roll The seaweed net processing vessel according to claim 1, wherein the laver net is wound from a roller to the second winding roller. 前記酸処理槽と前記アルカリ処理槽との間には、前記海苔網の前記酸処理槽から前記アルカリ処理槽への移動を補助する補助ローラが設けられていることを特徴とする請求項１または２に記載の海苔網処理船。   The auxiliary roller for assisting the movement of the laver net from the acid treatment tank to the alkali treatment tank is provided between the acid treatment tank and the alkali treatment tank. 2. A seaweed net processing ship according to 2. 前記酸処理槽には、前記海苔網における前記酸処理液の付着量を減少させる付着量減少手段が設けられることを特徴とする請求項１〜３のいずれか一項に記載の海苔網処理船。   The seaweed net processing vessel according to any one of claims 1 to 3, wherein the acid treatment tank is provided with an adhesion amount reducing means for reducing the adhesion amount of the acid treatment liquid on the laver net. . 前記酸処理槽は、前記アルカリ処理槽を挟んで前後に２つ設けられることを特徴とする請求項２〜４のいずれか一項に記載の海苔網処理船。   The said acid treatment tank is provided in two before and behind the said alkali treatment tank, The laver net processing ship as described in any one of Claims 2-4 characterized by the above-mentioned. ２つの前記酸処理槽は、前記酸処理液の流通が可能なように相互接続されていることを特徴とする請求項５に記載の海苔網処理船。   6. The laver net processing vessel according to claim 5, wherein the two acid treatment tanks are interconnected so that the acid treatment liquid can flow therethrough. 前記アルカリ処理槽には、前記第２の巻取ローラが前後に２つ設けられることを特徴とする請求項５または６に記載の海苔網処理船。   The laver net processing ship according to claim 5 or 6, wherein said alkali treatment tank is provided with two said second winding rollers in the front and rear. 前記酸処理槽及び前記アルカリ処理槽の上側には前記海苔網を案内する網案内手段が設けられることを特徴とする請求項１〜７のいずれか一項に記載の海苔網処理船。
The seaweed net processing vessel according to any one of claims 1 to 7, wherein a net guide means for guiding the laver net is provided above the acid treatment tank and the alkali treatment tank.
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