For anaerobic fermentation process design:
(1) According to the characteristics of anaerobic fermentation medium, the critical speed of solid-liquid suspension is guaranteed, and the capacity of equipment is determined, so as to reduce the power consumption of stirring. (2) According to the characteristics of anaerobic fermentation tank, parameters such as blade shape, stiffness and strength of rotating shaft were designed and checked. The anti swing design is added to ensure that the long cantilever shaft does not oscillate significantly. (3) according to the characteristics of inflammable and explosive gas produced by anaerobic process, explosion protection design is adopted. Electrical equipment conforms to ExdIIbt4 standard. The gas seal is designed with high reliable water seal. The mechanical equipment optimizes the contact part of the equipment to avoid sparks. (4) The agitator speed can be adjusted according to the anaerobic condition by using frequency conversion drive, so as to improve the anaerobic effect and reduce the power consumption of the equipment. (5) mixing shaft and mixing blade material can be customized according to different anaerobic media.
The versatility, reliability and maintainability of the equipment are:
(1) choose universal reducer with high reliability. (2) choose standard coupling. (3) the bearing and gearbox are designed with redundancy, and the life of bearings and gearboxes is more than 100000 hours. (4) replacing seals and replacing bearings can be operated outside the tank. Maintenance time is less than 4 hours. (5) the outdoor design of the equipment can adapt to outdoor temperature and humidity changes and wind and rain environment.
Serialization of equipment:
(1) modular design can be used in conjunction with different types of drive units, seals and blades. Spare parts are easy to repair and replace. (2) provide series product selection for different tank types.
