Technical features: Tank Material: Stainless Steel SUS304 / SUS316L; Surface finish: inner surface Ra ≤ 0.6 μm, outer surface Ra ≤ 0.8 μm; Heating and cooling: outer jacket / coil and inner tube connected with the type; Tank interface: PH, DO, temperature, vaccination, defoaming, acid supplement, alkali, feeding, pressure, etc .; Structure: vertical feet, ear-type bearings, skirt type, to meet the different conditions and user needs. Mixing system: Mixing blade form: defoaming pulp, flat leaves, oblique leaves, curved leaves, axial flow leaves (according to customer requirements or process requirements matching). Control System: Ventilation control (DO): deep ventilated, bottom air intake; on-line detection, range 0 ~ 100% or 0 ~ 200%; import DO electrode, can be online high temperature steam disinfection; with speed and ventilation associated with automatic or manual control; Acid and alkali control (PH): on-line detection, the range of 2 to 12; imported PH electrode, can be hot on-line steam sterilization; with peristaltic pump or self-control valve automatically add acid or alkali control; Temperature control (T): on-line detection, range 0-150 ℃, import temperature sensor, digital settings, automatic / manual switching, the use of constant temperature water, cooling water, chilled water and other different conditions to be selected; Feeding control: peristaltic pump or self-control valve for feeding control; Defoaming control: Conductive foam electrode for automatic alarm detection or automatic flow defoamer. control method: Under the machine control: brand touch screen interface, dedicated PLC automation control procedures, the automatic control of fermentation parameters. Temperature, PH, DO, defoaming, stirring speed, feeding system and other parameters of real-time monitoring and control; Host computer control: remote computer real-time monitoring, fermentation dedicated configuration software, historical data query and display, easy to carry out data analysis, curve analysis.