The selection of suitable fertilizer drying equipment should take into account the four core dimensions of material characteristics, production capacity requirements, process compatibility, and cost budget, while also considering factors such as environmental protection, energy consumption, and subsequent operation and maintenance. The following is a step-by-step decision-making framework and key considerations to help accurately match device types:

Scenario 1: Production of bio organic fertilizer (fresh poultry manure, initial moisture content of 70%, target moisture content of 12%, daily output of 10 tons, thermal sensitivity) → Vibration fluidized bed dryer (low temperature, low energy consumption, suitable for granular products);

Scenario 2: Production of compound fertilizer granules (nitrogen phosphorus potassium mixture, initial moisture content of 30%, target moisture content of 10%, daily production capacity of 50 tons, continuous production) → Drum dryer (large processing capacity, simple structure, suitable for granular materials);

Scenario 3: production of amino acid fertilizer (slurry, heat sensitive, need fine powder finished products, daily output of 5 tons) → spray dryer (instant drying, uniform product particle size);

Scenario 4: Production of humic acid paste fertilizer (initial moisture content of 50%, strong viscosity, daily production capacity of 8 tons) → Hollow blade dryer (self-cleaning, anti sticking, high thermal efficiency).