The evaporator has been widely used in the amino acid industry, including the evaporation and concentration of lysine, threonine and monosodium glutamate. Evaporative concentration is the key production process in many industries. However, the evaporator is not a universal evaporation concentration system. Design, material selection, manufacture and use of high efficient evaporator should be compatible with the properties and technological requirements of the concentrated materials. Only in this way, the evaporator can give full performance and play an increasingly important role in the production of the amino acid industry.
Take three effect evaporator working process as an example:
The type 20-50 lysine is about 20% of the feed concentration before evaporation, and the concentration of the discharge is about 50%. The concentration of feeding and discharging is higher.
Take four effect evaporator working process as an example: The first and second effects were evaporated by central forced circulation, and the third and fourth effect was evaporated by falling film evaporation.
The evaporation sequence of the material is: The material enters the fourth evaporator evaporation, then enter into the third evaporator evaporation, then enter into the first effect of central forced circulation evaporation; finally enter into the second evaporator central forced circulation evaporation.
Threonine is accompanied by crystallization in the concentrated production, so its multi - effect evaporator is also more complex.
Threonine has an extremely important physiological function in animals. The addition of threonine to the feed has the following characteristics: