The advantage of the wet fish meal production process is that it can handle raw materials with high fat content. Pressing the raw materials will get 2/3 of the press liquid. After recovering the fish solid and fish oil, there is still a large amount of nutrient-rich stickwater. It is made into a concentrate and then send to the dryer to make fishmeal, which accounts for about 20% of the fishmeal yield. This important work is accomplished by the concentrating system, this system can shorten drying time and can increase fishmeal quality;
NJ concentrating system consists of I and II effect evaporators, I and II effect separators, vacuum condenser and five pumps. Through vacuum sealing, we use waste steam from dryer as heat source, evaporate water at 42℃, continuously recycle fish protein water to produce concentrate;
The distilled water produced by the concentrated system has no pollution to the environment and is an efficient and energy-saving equipment.