by
Ulrich Grahn, Consulting Manager, Germany
Soybeans going to be treated in an oil press need to have a remaining moisture content of about 10 percent. Typical moisture content before a drying process comes close to about 13 percent. In order to reduce retention time in a dryer, soybeans are cracked either to half or just a quarter bean size.
Paying attention to an increasing demand of typical soybean-based oil, an
Austrian company decided and finally chose to adopt a carousel-dryer system. As
available installation ground was limited, a carousel-dryer with a round
cylindrical body offered the best solution. Additionally, the dryer guarantees
very uniform and gentle drying. From the first inquiry up to putting the
solution to function, less than a year took place. The T200.4 carousel dryer is
doing extremely well, as of June 2020.
Carousel-dryers have a basic design of a cylindrical cross-sectional area containing a modular case. In its centre, a vertically fitted main shaft is driven by a frequency-controlled bevel gear box. Fitted onto this shaft, either 12 or 16 single installed screen trays compose the closed drying area. Depending on a number a customer requirement such as water evaporation, throughput rate, etc, up to seven different drying options are available through the tailormade carousel-dryer.
A rotary valve serves as the carousel dryers production inlet, which avoids sucking in unwanted ambient air. Product to be dried enters first drying area whilst the inner design is continually rotating. Installed product distributors generate uniform distribution on all installed drying areas. Each of the installed screen trays are pivoted and open or tilt with a special tilting mechanism after approximately 90 percent of the revolution. Product is then discharged to the next subjacent drying area. This process is repeated by the number of chosen drying areas and is released via an outlet box, followed by another rotary valve.
Read more HERE.
Soybeans going to be treated in an oil press need to have a remaining moisture content of about 10 percent. Typical moisture content before a drying process comes close to about 13 percent. In order to reduce retention time in a dryer, soybeans are cracked either to half or just a quarter bean size.
Carousel-dryers have a basic design of a cylindrical cross-sectional area containing a modular case. In its centre, a vertically fitted main shaft is driven by a frequency-controlled bevel gear box. Fitted onto this shaft, either 12 or 16 single installed screen trays compose the closed drying area. Depending on a number a customer requirement such as water evaporation, throughput rate, etc, up to seven different drying options are available through the tailormade carousel-dryer.
A rotary valve serves as the carousel dryers production inlet, which avoids sucking in unwanted ambient air. Product to be dried enters first drying area whilst the inner design is continually rotating. Installed product distributors generate uniform distribution on all installed drying areas. Each of the installed screen trays are pivoted and open or tilt with a special tilting mechanism after approximately 90 percent of the revolution. Product is then discharged to the next subjacent drying area. This process is repeated by the number of chosen drying areas and is released via an outlet box, followed by another rotary valve.
Read more HERE.
The Global Miller
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