Written by Administrator
|
02 February 2012
Arintha system Dryers can be categorized in different ways. There are natural air, low temperature, and high temperature dryers; there are batch, automatic batch and continuous flow dryers; and there are in-bin and column or self-contained dryers. Dryers can also be classified according to the direction of airflow through the grain; cross-flow, counter-flow, and concurrent-flow. With the addition of hot air, gas, electricity, steam, infrared or any other heating device, the steel belt becomes a dryer or heater.
Types of Dryers
Natural Air/Low Temperature Drying
Advantages: No harvest bottle neck. The bins can be filled at the harvest rate, a properly sized system may dry the crop more economically than a high temperature dryer.
Disadvantages: here is a limit on initial moisture content that can be effectively dried, electrical power must be available at each bin for dryer fan motors
Layer Drying
Advantages:Grain with a higher initial moisture content can be harvested as compared to the maximum initial moisture content used in full-bin drying.
Disadvantages: the harvesting schedule may be restricted
High Temperature Bin Drying
Advantages: The bin can be used for storage at the end of the drying season, wetter grain can be dried than can be dried with a natural air or low temperature dryer.
Disadvantages: A large moisture variation between grain kernels is possible, Grain damage may occur from stirring.
Column Dryers
Advantages: Dryer does not occupy grain storage space, portable units can be moved from one location to another.
Disadvantages: The heat available in the dryer is not used as efficiently as in deep bed drying.
Combination Drying
Advantages: Increases drying rate of high temperature dryer by about 300 percent, Increases energy efficiency.
Disadvantages: Requires natural air/low temperature drying to complete drying, requires more grain handling.
Dry ration and In Storage Cooling
Advantages: Increases drying rate by about 60 percent for dry ration and 30 percent for in-storage cooling, Increases energy efficiency.
Disadvantages: Requires cooling fan and bin, requires more grain handling.
Arintha system Dryers can be categorized in different ways. There are natural air, low temperature, and high temperature dryers; there are batch, automatic batch and continuous flow dryers; and there are in-bin and column or self-contained dryers. Dryers can also be classified according to the direction of airflow through the grain; cross-flow, counter-flow, and concurrent-flow. With the addition of hot air, gas, electricity, steam, infrared or any other heating device, the steel belt becomes a dryer or heater.