PROBLEM TO BE SOLVED: To even the degree of acid treatment of laver nets which are wound up into an acid treatment tank.SOLUTION: The present invention relates to a boxy ship, which ship includes: an acid treatment tank for storing an acid treatment solution made by diluting an acid stock solution and a winding roll arranged in the acid treatment tank to wind up laver nets with laver adhered thereto, the boxy ship further including: stock solution discharge parts separately located at a plurality of sites in the acid treatment tank to discharge the stock solution to the acid treatment solution and a stock solution supply part for supplying the acid stock solution to the stock solution discharge parts.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】酸処理槽内に巻き取られた海苔網の酸処理の程度を均一にする。【解決手段】酸原液が希釈された酸処理液を貯留する酸処理槽と、酸処理槽内に設けられ、海苔が付着した海苔網を巻き取る巻取ロールとを備える箱型船であって、酸処理槽の複数の箇所に離散配置され、酸原液を酸処理液に向けて吐出する原液吐出部と、原液吐出部に酸原液を供給する原液供給部とを備える。【選択図】図1
