① The original shape of the material: particles, powders, particles, sludge, crystals, liquids, pastes, suspensions, solutions, continuous flakes, thick plates, irregular materials (small or large), viscous or lumps, etc.
② Average output continuous operation feeding amount or finished product, intermittent operation feeding amount or finished product and its adjustment range, etc.
③ The state of finished particles: average particle size, particle size distribution, particle density, bulk density, rehydration, etc.
④ The moisture content of the material inlet and outlet is dry basis and wet basis.
⑤ Material properties Chemistry, biochemistry, microbial activity, heat sensitivity (melting point, glass transition temperature), moisture absorption isotherm (equilibrium moisture content), etc.
⑥ The influence of drying time and drying curve and operating parameters.
⑦ Heater contact method (direct, indirect).
⑧ Choose steam, coal, electricity, oil and gas as fuel.
⑨ Drying auxiliary equipment fan, dry dust collector, wet dust collector, feeder, discharger, finished product cooling and conveying device, etc.
⑩ Special requirements for materials, corrosiveness, toxicity, non-philic water solution, flammable and explosive limits, ignition point, color, structure, fragrance requirements.
⑩ Drying system The floor space of drying equipment and auxiliary equipment. Equipment installation and debugging process and general requirements
