2. Sol and gel materials, such as titanium dioxide colloid, silica gel, etc.

3. Freezing materials such as biological materials, food, pharmaceutical products, etc.

(4) paste materials, such as activated sludge, filter cake, filter brick and abrasive filter.

⑤Powder and granular materials, such as titanium dioxide powder, ceramsite, ceramic raw material, ceramic powder, etc.

Bar materials, such as ceramic rods for ceramic ball mills, roller rollers, magnetic rods for magnetic ceramics, etc.

Short, fibrous materials, such as ceramic cotton, asbestos, carbon fiber, glass fiber, etc.

Irregular shapes of materials, such as sanitary ceramics, art ceramic bodies, etc.

_Continuous sheet material, such as ceramic sheet prepared by tape casting, ceramic sheet rolled by film rolling mill, etc.

⑪Porous materials, such as porous ceramics, honeycomb ceramics, foamed ceramic bodies, etc.

⑫Coating of parts and equipment, such as coating of mechanical products, paint film, etc. Physicochemical properties of 1.1.2 materialsThe physicochemical properties of the dried materials determine the types of drying media and must have a better understanding of the physicochemical properties of the materials.Products such as reaction products. Chemical properties of national materials. Such as spring, flammability, redox, alkalinity, corrosiveness and water absorption.Physical properties of materials. Such as thermosensitive (softening point, melting point, Buddha point, decomposition point), false hide, straight skin, ratio drying method andLaboratory spray drying equipmentImportant factors.