Single tank with single control, Maitreya plate cooling jacket 1. The main structure size and material Φ1760*4400mm, total volume 6500L, effective volume 5000L The thickness of the insulation layer is 80mm; the thickness of the inner tank: 3.0mm, 304 stainless steel; The inner tank is mechanically polished, with a polishing accuracy of 0.6μm, and is pickled and passivated; the thickness of the outer cylinder is 2.0mm, 304 stainless steel; the outer plate is protected, and the weld is polished with a 40mm fine sanding belt; the thickness of the Miller plate: 1.5mm, 304 stainless steel. 2. Functional accessories ⑴. Cooling jacket area: about 7.2 square meters. ⑵. The jacket adopts a two-stage arrangement of the tank body, and the two-stage jacket refrigerant enters and exits independently. ⑶. The tank bottom jacket adopts the above-mentioned layout design, the purpose is to allow the refrigerant to flow evenly in the cooling jacket, avoid the occurrence of stagnation, and improve the heat exchange efficiency. ⑷. The two-stage cooling jacket adopts independent entry and exit methods. The single refrigerant supply control valve is divided into two refrigerant pipelines. Each branch pipeline is equipped with refrigerant on-off and flow rate adjustment ball valves to shorten cooling and cooling time and reduce cooling and cooling energy consumption .   ⑸, tank top pressure safety valve, side manhole door, more sanitary;   ⑹, sterile negative pressure breathing valve;   ⑺, Rotary CIP cleaning ball; Other key valve supporting