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    Grain drying

    Corn/wheat/soybeans drying (grain drying) – newer-model grain dryers (used primarily for corn drying), particularly continuous dryers, are substantially more energy efficient than older dryers. These newer models utilize a microcomputer-based controller for controlling the drying operation. 

    Control of the older models is primarily manual (with some moisture content compensation).  The plenum temperature and auger speed are manipulated to maintain a target grain moisture content of 15.2% at the discharge. Newer continuous dryers offer a more sophisticated anticipatory microcomputer-based control system that adjusts the amount of time the corn remains in the dryer (the residence time) in order to achieve a consistent and accurate moisture content in the dried product. The primary inputs to the controller are the incoming moisture content, the plenum temperature, and the outgoing moisture content of the grain (moisture content is measured with capacitance sensors). To achieve the desired outgoing moisture content, the controller adjusts the speed of the metering rollers that remove grain from the dryer, thereby changing the residence time of the grain in the dryer. The controller also controls the plenum temperature based on the incoming moisture content.

    Is it time to upgrade your grain dryer? Contact us to find out.