1.The fermenting tank is a vertical double layer mixing structure, with paddle, frame or spiral agitator, the standard ellipse or conical head, the lower cone head, the adjustable support foot, 2.The tank body as the pressure design, the sand wich 0.3MPa pressure design, the interlayer equipment all use the high quality stainless steel SUS304 or 316L, the inner surface mirror polishing treatment. 3.The cleaning ball, manhole glass gauge, motor, explosion-proof lamp, optic mirror, seal respirator, fermentation agent in the tank with agitator by mixing fermentation bacteria.