(Equipment can be customized according to customer usage requirements)

Microwave sterilizationPrinciple:

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.

The microwave sterilization temperature only needs 65-85 degrees, and the sterilization time is 5-10 minutes. The entire process does not damage the nutritional content of the material, and is widely used for sterilization of drugs, traditional Chinese medicine pills, traditional Chinese medicine powder seasonings, vacuum packaged foods, seasoning sauces, etc. It can also be used for pre-treatment of insecticidal eggs in agricultural products.

What are the requirements for sterilization of microwave tape packaging?

For microwave sterilization of packaged food, the packaging material should be considered first, and products packaged in metal aluminum foil cannot be subjected to microwave sterilization; If plastic packaging is used, it is required that the plastic packaging has certain temperature and pressure resistance properties, such as cooking bags. If polyethylene plastic bags are used alone for packaging, microwave sterilization is not suitable; Food with high solid content packaged in glass bottles can also be used for microwave sterilization.

Precautions for Microwave Bulk Material Sterilization

Microwave bulk sterilization (particles, powders, etc.) needs to be carried out in a purified environment because microwaves need to heat the materials during the sterilization process. Although it is low-temperature sterilization, it still needs to be heated, which will reduce the moisture content of the materials to a certain extent. Therefore, the microwave chamber needs to exhaust and intake air. In order to avoid secondary pollution, it must be carried out in a purified environment.

Example of Equipment Parameters: Sterilization Capacity 50kg-2t/h

Power supply: 380V three-phase five wire (must be equipped with a dedicated grounding wire)

Input power: 8-230kVA

Microwave frequency: 2450MHz

Microwave output power: 6-200kw (power step adjustable/infinitely adjustable)

Equipment structure: Tunnel type

Equipment material: 304 stainless steel

Dimensions: 11000 * 1000 * 1800mm

Ground clearance height of conveyor belt: 800mm

Discharge height above ground: 450mm

Feeding device: hopper, regulating plate

Discharge device: discharge hopper

Conveyor belt type: Teflon food belt

Microwave leakage:< 1mw/cm2

Control system: manual button control/PLC touch screen (optional 485 communication interface)

Temperature measurement system: infrared

Transmission system: Variable frequency gear reduction motor

Transmission speed: 0-10m/min

Microwave Generator: Panasonic/Samsung

Microwave power supplyMicrowave frequency conversion power supply/transformer rectifier circuit

Moisture and heat removal: Multi blade centrifugal fan (0.55-3kw optional)