Drying method of dehumidifying dryer:
1, heating and drying method
Heating drying is the use of heat energy to heat the material to evaporate the moisture in the material. Generally, dehumidification dryers use air to dry materials. The air is pre-heated and sent to the dryer to transfer heat to the materials. At high temperatures, the moisture in the materials is vaporized to form water vapor, which is carried out of the drying barrel with the air. After the material is heated and dried, the water can be removed to reach the required moisture content of the product or raw material.
2, mechanical dehydration method
Mechanical dehydration is to squeeze out a part of the water by pressing the material. Commonly used methods include pressing, sedimentation, filtration, and centrifugal separation. The mechanical dehydration method usually can only remove part of the free moisture in the material, and the combined moisture still remains in the material. Therefore, the material will still contain moisture after the material is mechanically dehydrated, and the drying effect is not obvious. However, mechanical dehydration is relatively an economical method.
3, chemical dehumidification
Chemical dehumidification is to remove a small amount of moisture in gas, liquid, and solid materials through hygroscopic agents. Due to the limited dehumidification capacity of hygroscopic agents, they are only used to remove trace moisture in materials, so they are rarely used in production.
Dehumidification dryer application range:
Petroleum and chemical industry: polymerization, condensation, distillation, melting, dehydration, forced insulation.
Oil industry: fatty acid distillation, oil decomposition, concentration, esterification, vacuum deodorization.
Paper Industry: Drying, corrugated paper processing.
Wood industry: plywood, fiberboard press molding, wood drying.
Building materials work: gypsum board drying, asphalt heating, concrete component maintenance.
Synthetic fiber industry: polymerization, melting, spinning, stretching, drying.
Textile printing and dyeing work: heat setting, drying, heat capacity dyeing.
Non-woven industry: non-woven fabrics.
Machinery industry: painting, printing and drying.
Food industry: baking, heating.
Air-conditioning industry: heating for industrial plants and civil buildings, microwave vacuum drying equipment
Road construction industry: asphalt melting, heat preservation.
Pharmaceutical industry: drying.
Microwave medicinal materials sterilization and drying equipment
Feed industry: drying.
Plastic and rubber industry: hot pressing, calendering, extrusion, vulcanization molding.
Light industry: production of inks and washing powders.
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