microwaveHeating and sterilization treatment for pastries, cooked food, and fast foodHeating and reheating.
warpa large numberPractice has proven that this equipment has the advantages of good puffing effect, fast drying speed, simple equipment operation, and high degree of automation. In addition, the sterilization effect of this device is exceptionally good (verified by relevant food departments), therefore, it can fully meet the requirements of deep processing of seafood.stillSuitable for drying seafood spices (kelp, seaweed, fish, shrimp).
The processing technology of spices: concentrated paste - feeding system - feeding energy suppressor - microwave dryer - discharging energy suppressor - cooling system - discharging crushing system
microwavedeviceDrying characteristics:
1. Short drying time and strong fragrance of the product;
2. The drying temperature is low and uniform, resulting in a bright color of the product;
3. Selective heating. Because water molecules absorb microwaves, the parts with higher water content absorb more microwave power than those with lower water content. This is the characteristic of selective heating, which can achieve uniform heating and uniform drying;
4. The direction of the water vapor for drying and dehydration is from inside to outside. So, microwave drying has a puffing effect, which is very helpful for subsequent crushing;
5. Energy saving and efficient. Microwave directly acts on materials, so there is no additional heat loss. The air inside the furnace and the corresponding containers do not heat up, so the thermal efficiency is extremely high and the production environment is significantly improved. Compared with far-infrared heating, it can save 30% electricity
%.
6. Easy to control and advanced technology. Compared with conventional methods, the equipment is ready to use immediately upon startup; No thermal inertia, flexible and convenient operation; The microwave power is adjustable. In microwave heating and drying, there is no wastewater or exhaust gas, making it a safe and harmless high-tech. improve
Product quality brings economic benefits!Customization can be designed based on the user's basic factory building and production capacity.
Principle of Microwave Heating
Waves are electromagnetic waves with frequencies ranging from 300MHz to 300GMHz, and their direction and magnitude undergo periodic changes over time. The process of microwave heating involves the direct interaction between microwaves and materials, converting ultra-high frequency electromagnetic waves into thermal energy. Water is a substance that strongly absorbs microwaves, and the water molecules in the material are polar molecules. Under the action of microwaves, their polarity orientation changes with the external electromagnetic field. A 915 MHz microwave can cause water molecules to move 1.83 billion times per second, resulting in rapid friction and collision of molecules, causing the material to undergo a series of processes such as heating and expansion, thus achieving the purpose of microwave heating
Microwave sterilization mechanism
Microwave sterilization is the result of the combined thermal and biological effects of microwaves. The thermal effect of microwaves on bacteria is to denature proteins, causing bacteria to lose their nutritional, reproductive, and survival conditions and die; The biological effect is that the microwave electric field changes the potential distribution of the cell membrane cross-section, affecting the concentration of electrons and ions around the cell, thereby altering the permeability of the cell membrane. As a result, bacteria are malnourished, unable to metabolize normally, their structural functions are disrupted, and their growth and development are inhibited, leading to death. In addition, nucleic acid (RNA) and deoxyribonucleic acid (DNA), which determine the normal growth and stable genetic reproduction of bacteria, are coiled macromolecules tightly connected by several hydrogen bonds. A sufficiently strong microwave field can cause hydrogen bond relaxation, breakage, and recombination, thereby inducing genetic mutations, chromosomal aberrations, or even breakage. Welcome to customize microwave products according to production capacity.