To provide an oyster and a fish and shellfish granulating apparatus for granulating oysters and fish shellfish without emitting explosive sounds.SOLUTION: There is a pressure kiln 1 with a high air pressure with an intermediate wall 4 in between, and a low pressure kiln 2 with a low air pressure, and the intermediate window 13 of the intermediate wall 4 is locked There is an opening / closing door 10 to be released, and the oyster and fish shells 15 in the pressurizing furnace 1 are appropriately heated to have appropriate humidity. When the locking mechanism rod 12 is unlocked, the oysters and fish shells 14 open the opening and closing door 10 together with the high pressure air in the pressure kiln 1 and explosively and instantaneously move to the low pressure kiln 2, The oysters and fish shells 14 are expanded in tissue and turned into granules containing a lot of air between the cells and caused to blow between the pressurized kiln 1 and the low pressure kiln 2 having a structure in which air movement is hermetically sealed, The structure does not appear.BACKGROUND OF THE INVENTION【課題】爆音を出さずに牡蠣及び魚貝類の顆粒化を行う牡蠣及び魚貝類の顆粒化装置を提供する。【解決手段】中間壁4を中間に挟んで空気圧が高圧の加圧窯1と、空気圧が低圧の低圧窯2があり、中間壁4の中間窓13には、ロック機構棒12の操作でロック又は解放される開閉扉10があり、加圧窯1内の牡蠣及び魚貝類置台15の上の適宜に加熱し適宜な湿度を持たせた。牡蠣及び魚貝類14は、ロック機構棒12のロックが外れると、加圧窯1内の高圧空気とともに開閉扉10を開いて、爆発的に瞬時に低圧窯2に移動するが、この際に、牡蠣及び魚貝類14は組織が膨張して細胞間に多くの空気を含んだ顆粒状になり、空気の移動を密閉した構造の加圧窯1と低圧窯2の間で起させて爆音が外に出ない構造である。【選択図】図1
