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Refrigerated Air Dryers Refrigerated air dryers are typically used in industrial applications because they are easy to maintain, relatively low-cost, and have few special requirements. Similar to a home refrigerator or air-conditioner, the industrial refrigerated air dryer works in the following way: · Warm, moist air enters the air dryer. · It is rapidly cooled to a temperature slightly above freezing in a refrigeration unit. · The water vapor condenses into liquid water. · The water is collected in a trap and emitted through discharge lines. · The warm, gaseous refrigerant is cooled and regenerated in a condenser. · The remaining dry air is then reheated to room temperature and fed through an outlet. Refrigerated air dryers are typically best used for general plant operations, as opposed to critical processes that may require extremely dry air.

How do air dryers work? We often think of water as a necessity for life, but it can be very harmful in manufacturing. In air compressor units, water vapor condenses during the air compression process. If allowed to accumulate, this excess water can cause a variety of operational problems and production complications.   Industrial compressed air dryers are used to separate water vapor from process air and cool it so that the air can be compressed efficiently. This step is necessary to prevent production failures such as freezing of outdoor air lines, dangerous corrosion of pipes and equipment, and failure of pneumatic process control instrumentation.   Senmao sells a variety of compressed air dryers to keep production running smoothly. Our product line includes regenerative, breathing air systems, membrane, refrigeration cycle, and non-cycle types. Air dryers are essential to keep air compressor units free of moisture and prevent rust. This article introduces the different types of compressed air dryers and discusses some possible applications for each type.

Perfect for Preheating Non-Hygroscopic Materials For non-hygroscopic materials (like Polyethylene, Polypropylene and PVC), simple headed air can remove surface moisture from pellets. For these applications, compressed air drying and desiccant drying is not necessary. Hot Air Dryers are a simple system consisting of a heater, a blower, a temperature controller, and a filter. This system is typically paired with a drying hopper for effective drying of non-hygroscopic resins. The system can also be used for pre- or post-drying of hygroscopic resins that have been, or will be thoroughly dried by a desiccant dehumidifying dryer. Using a modular design, the SEMAO system can be easily configured to work with various plant layouts and drying configurations. Designed for preheating non-hygroscopic pellets The SEMAO was designed to convey continuous heated air for removing surface moisture from pellets that only capture moisture on the pellet surface. Modular construction Adapting easily to every plant environment is just one advantage of the modular construction. Additionally, the modular construction allows for designing perfect sizing configurations for your process needs. Temperatures up to 250°F Designed to blow the perfect heated air for removing the surface moisture from the pellet without unnecessarily over drying material. Remove Surface Moisture with Simple Heated Air Hot Air Dryers for drying resin use exactly the same drying hoppers as dehumidifying desiccant dryers, and rely on a constant flow of heated air through the hopper to predictably remove surface moisture from the pellets. The only difference is that SEMAO dryers do not recirculate the air that passes through the hopper. The expelled air passes through an exhaust filter sock. Conair also offers an integrated housing package, similar to Conair’s desiccant dryers, utilizing the heater, blower, inlet filter, and control, into a single, floor standing unit with casters for user portability. These integrated units have CFM capabilities from 75 to 250 cfm, providing throughputs from 150 to 400 lbs/hr. Modular Unit Throughput Throughputs from 600-5000 lbs per hour. Available in five models to best suit your requirements. Integrated Frame Unit Throughput Throughputs from 150-400 lbs per hour. Available in four models for mobility and smaller throughput needs.