Application status of drying equipment for monosodium glutamate bacterial protein
Currently, the main equipment used for drying monosodium glutamate (MSG) mycoprotein in China includes:
1. Tube bundle dryer
2. High-speed mixing dryer
3. Rotary flash dryer.
In terms of the quality of dried products, the high-speed agitated dryer is ideal, followed by the rotary flash dryer and the tube bundle dryer.
In terms of the cost of dry products, the cost of tube bundle dryers is low, followed by high-speed agitated dryers and rotary flash dryers. Tube bundle dryers use steam as the heat source, while other dryers use mechanical grate coal-fired hot air stoves or manually fired hot air stoves.
The tube bundle dryer system has a simple composition but a complex structure, with many maintenance points. The high-speed agitated dryer and rotary flash dryer have simple structures and are relatively easy to maintain,.
Although the tube bundle dryer is characterized by high efficiency, due to the high viscosity of monosodium glutamate (MSG) mycelium protein, which is difficult to handle with a tube bundle dryer, the back-mixing process is employed. This involves mixing a large amount of dry material into the wet material to reduce the viscosity of the material. Consequently, the efficiency of tube bundle drying in drying MSG mycelium protein is relatively low, with the water removal capacity decreasing from 4-5kg water/M2.h for general materials to 3-3.5kg water/M2.h.
Therefore, nowadays, when selecting drying equipment for monosodium glutamate bacterial protein, manufacturers rarely choose tube bundle dryers. Tube bundle dryers are currently mainly suitable for drying materials such as germ, fiber, and distiller's grains.
The rotary flash dryer must be specially designed for monosodium glutamate (MSG) mycelium protein, rather than a general-purpose one. A general-purpose rotary flash dryer requires corresponding modifications for MSG mycelium protein, otherwise the drying effect will be poor.
The high-speed agitation dryer is a new type of drying equipment that we have independently developed, primarily designed for drying materials with high viscosity and humidity. China's first monosodium glutamate bacterial protein dryer utilizes a high-speed agitation dryer. This equipment produces high-quality dried products, boasts a simple structure, and is easy to repair and maintain
