Dryer yɛ mfiri a wɔde ɔhyew di dwuma de ma nsu (mpɛn pii no nsu anaa nsu afoforo a ɛyɛ hyew) fi ade bi mu yɛ hyew na woyi fi mu, na ɛnam so nya ade a ɛyɛ den a nsu dodow pɔtee bi wom. Ɛyɛ mfiri bi a wɔde yɛ nneɛma a wɔde yɛ nneɛma a ɛyow.
Nnɛyi dryers de batch-operation fixed-bed dryers dii dwuma mfiase no. Tunnel dryers a wɔde dii dwuma wɔ afeha a ɛto so 19 mfinimfini no hyɛɛ dryers a wɔyɛe fi batch so kosi bere a wɔde yɛ adwuma daa no agyirae. Mfiridwuma mu nneɛma dodow no ara hia sɛ wɔyow wɔ bere bi a wɔyɛ no mu, na nneɛma no hia nsu pɔtee bi a wɔde bɛyɛ adwuma, ayɛ, anaasɛ wɔayɛ no granulation. Wobetumi akyekyɛ dryers mu sɛnea su ahorow te sɛ adwumayɛ kwan, adwumayɛ nhyɛso, ɔhyew kwan, nneɛma a ɛyɛ nsu a ɛkɔ, anaa nhyehyɛe.
