ALF external circulation fermentation tank of gas lift type belong to the company patent product (ZL200520070 555 X), is for dissolved oxygen and mixed to demand higher technology and development.Its unique structure make fermented liquid periodically through the reinforced region of mass transfer, reinforced region can design according to the characters of zymotic fluid rheological properties and microbial metabolism, to meet the needs of microbial growth and product formation.Industrial practice shows that it is used for high biomass, high viscosity, high density cultivation, high dissolved oxygen, high oil system of microbial fermentation has significant advantages.
Working principle:
Air through a new type of gas injector in lift pipe form gas-liquid mixing jet, strengthen lift mixing and mass transfer in the tube, and caused heavy lifting liquid pipe flow is poor, do overall external circulation driving fluid.
Product features:
(1) air mixing, weak, macro shear damage mix well, dissolved oxygen level is high, low energy consumption, low noise, high loading coefficient, low maintenance cost;No moving parts, no mechanical seal, resistance to bacterial contamination.
(2) high to diameter ratio and the external circulation tube number, mass transfer hybrid reinforced region form according to customer's product process requirement and design with the computer CFD results.
Areas of application:
Mold or actinomycetes training for high biomass, is sensitive to the shear stress of filamentous bacteria damage small;Used for high viscosity culture fermentation, make use of the rheological properties of high viscosity mash, reduce its apparent viscosity, increase the mass transfer rate;Fermentation for oil-bearing system, can improve the oil/water emulsion state;In conclusion, ALF can improve the level of dissolved oxygen, to speed up microbial growth and metabolism speed, shorten the fermentation period, raise the level of fermentation.
Our company provides ALF external circulation of gas lift type fermentation tank series products, the largest single tank capacity is 200 m3, used in production of organic acid.
Industrial applications:
Bacterial fermentation (microbial polysaccharide, hemp degumming, malic acid);Yeast fermentation (glycerin, oil dewaxing, pyruvic acid);Fungal fermentation (beta carotene, 5 '- nucleotides);Actinomyces fermentation (polyacrylamide).