PLANAR DRYING SYSTEMS
Planar Drying Systems are available in three models with each model available in either a horizontal or vertical orientation. Power requirements and operating frequency are determined based on process specifications provided by the customer:

Pre-dryers (retrofitted before an existing conventional oven)
- PDS™-HR = Planar Drying System Horizontal Pre-Dryer
- PDS™-VR = Planar Drying System Vertical Pre-Dryer

Post-dryers (retrofitted after an existing conventional oven)
- PDS™-HO = Planar Drying System Horizontal Post-Dryer
- PDS™-VO = Planar Drying System Vertical Post-Dryer

Total dryers (stand alone)
- PDS™-HT = Planar Drying System Horizontal Total Dryer
- PDS™-VT = Planar Drying System Vertical Total Dryer

Systems are completely scalable depending on the application. The microwave power output required, its frequency and the applicator design are determined by the volume of material being processed per hour, its microwave properties, and the process specifications. Pertinent specifications include the weight of the material, its width, its thickness, process speeds, the starting and ending moisture content or the required temperature change, as well as the available floor space and required orientation of the system.

Most Planar Drying Systems are composed of the following major components:

Conveyor – Conducts movement of the material being dried, heated, etc. The conveyor is comprised of metal frames, microwave invisible belts, motors, gearbox, and drive components.

Microwave Generator – Generates the microwave energy of a given frequency and a maximum power output that is launched into the applicator. The generator and its ancillary components include a magnetron, electromagnet, power supply, circulators, water load, and enclosures for the entire generator component.

Applicator – Contains and distributes the microwave energy such that as the target material passes through the applicator it uniformly and efficiently absorbs the available microwave energy to achieve desired results. The applicator is the essence of Industrial Microwave Systems’ competitive advantage, and its design, construction, utility, and function are patented. The applicators incorporate unique designs and geometries within serpentined waveguide structures that are slotted to accommodate the entry and exit of the target material. Some applicators are vented to assist in the evacuation of evaporated moisture.

Control System – Monitors and controls the performance of the system and facilitates programming/automation as well as in-process adjustments of variables such as power output and process speed. The control system is comprised of computers, displays, devices for data acquisition, power monitoring, temperature monitoring, and enclosures for the entire control system component.

Evacuation – Disposes of byproducts that may result from the process such as heat, moisture, fumes, particulates, etc. The evacuation system is comprised of supply and exhaust fans, ductwork, hoods, and supporting structures.

Safety – Monitors the entire system for the leakage of microwave energy and communicates with the control system for automatic shut down in the unlikely event that leakage is detected. Every Planar Drying System incorporates a unique “choking” mechanism at the entry and exit to the applicator that reduces microwave leakage to below detectable levels. The safety system is comprised of permanently mounted leakage detectors hard wired into the control system and the “choking” mechanisms.

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