Changzhou Su Li drying equipment Co., Ltd.
Changzhou Su Li drying equipment Co., Ltd.
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Project description:
Lithium iron phosphate electrode materials are mainly used in various lithium-ion batteries. Compared with traditional lithium-ion secondary battery positive electrode materials, the material source is wider, the price is lower and there is no environmental pollution. The application areas of lithium iron phosphate are mainly: energy storage equipment, energy storage equipment for solar and wind power generation systems; power tools, high-power power tools (cordless), electric drills, lawn mowers, etc.; light electric vehicles; small equipment, etc.
1. Principle of lithium iron phosphate dryer
The double-cone rotary vacuum dryer is a double-cone rotary tank. In the vacuum state, steam or hot water is introduced into the jacket for heating. The heat contacts the wet material through the inner wall of the tank. The water vapor evaporated by the wet material after absorbing heat is pumped away through the vacuum exhaust pipe by the vacuum pump. Since the tank is in a vacuum state and the rotation of the tank makes the material constantly flip up and down and inside and outside, the drying speed of the material is accelerated, the drying efficiency is improved, and the purpose of uniform drying is achieved. The double cone rotary vacuum dryer system is mainly composed of double cone rotary vacuum dryer, condenser, dust collector, vacuum exhaust system, heating system, cooling system, electronic control system, etc.
2. Features of lithium iron phosphate dryer
1. During the vacuum drying process, the pressure in the cylinder is always lower than the atmospheric pressure, the number of gas molecules is small, the density is low, and the oxygen content is low, so it can dry easily oxidized drugs and reduce the chance of material contamination.
2. Since the temperature of moisture is proportional to the steam pressure during the vaporization process, the moisture in the material can be vaporized at low temperature during vacuum drying to achieve low-temperature drying, which is particularly suitable for the production of drugs with heat-sensitive materials.
3. Vacuum drying can eliminate the surface hardening phenomenon that is easy to occur during normal pressure hot air drying. This is because the pressure difference between the inside and the surface of the vacuum drying material is large. Under the action of the pressure gradient, the moisture quickly moves to the surface and no surface hardening occurs.
4. Since the temperature gradient between the inside and outside of the material is small during vacuum drying, the reverse osmosis effect allows the moisture to move and collect alone, effectively overcoming the dispersion phenomenon caused by hot air drying.
