Generally, the large-diameter fermentation tank only needs storage and heat preservation, without large cooling requirements, so its cooling area is smaller than the cooling area of the cone bottom tank, and the installation foundation is simpler, depending on the height of the tank. The cone part is designed or not equipped with a cooling sleeve as required. The cooling jacket is a compression part, the processing technology is more complex and the production cost is high. If placed in the open air, the tank insulation materials can be polyurethane foam, urea formaldehyde foam, polystyrene foam (fireproof material) or expanded perlite mineral wool, 100mm thick, according to the local climate to choose the specific thickness.

Fermentation tank

1. if polyurethane foam is used as insulation, it can be directly sprayed and smoothed out of cement in the outer layer, or polyurethane foam can be used. For beauty and firmness, thin aluminum plate coating or galvanized iron plate can be added to the external insulation layer, and silver powder can be coated on the external.

2. Mechanical cleaning of large fermentation tank and wine filling equipment. Large diameter open-air wine storage tank, also known as general tank and combination tank, can be used not only as fermentation tank, but also as wine storage tank.

3. The ratio of diameter to height of large-diameter tank is larger than that of barrel bottom tank. Due to its low height and pressure resistance, it is suitable for wine storage tank.