Continuous Dryer Economisers
Energy Saving Continuous Dryers provide significant fuel reduction in grain drying. In the LAW dryer a part of the output thermal energy is recovered back into the drying process, leading to fuel savings of up to 20%.
The LAW Economizer dryer is composed of:
- A wet grain buffer zone
- A superior drying zone
- A buffer zone separating the two drying zones
- A lower drying zone
- A cooling zone
Reasons for choosing a LAW energy-saving dryer
Energy saving:
- The drying column is composed of a number of compartments corresponding to the chosen evaporation flow
- The lower part of this column has multi-purpose compartments, which can be used either as drying or cooling compartments
- The air displacement in the dryer is ensured by two ventilation groups
- The first ventilation group, located at ground level, allows for the recycling of insufficiently saturated air at the end of drying, as well as cooling air
- The second ventilation group is located in the upper part of the humid air box and allows the extraction of saturated air
- Pneumatic valve systems allow the air flow through the grain to be regulated
- Medium pressure axial fans (air flow rate higher than centrifugal fan for the same electrical power)
- All fans are equipped with anti-dust cleaning filters
- Two temperature heating system depending on the height of the drying column
- The supply columns for the hot air and used air (recycling) are insulated with 50 mm thick glass wool
- High temperature air circuit insulation by double jacketed wall
Safety:
- Safe interior access to the heated air and used air (recycling) column by ladder in all 3 compartments
- Secure external access by stairway with intermediate resting platform and roof access platform
- Operating safety thanks to a tried and tested drive
- Air circuit safety: recycled air is injected into the hot air outside the combustion circuit
- Combustion safety with a pulsed, non-radiant air burner