When you need more drying power, for soaked or very wet products, fluid drying allows you to start drying at any stage.
Installations & Products
Fluid Drying
Intense drying with dry and cool air
Drying soaked seeds and pellets fluid in boxes
Drying installation for fluid drying of batches (soaked) seed and pellets in special drying boxes. The installation consist of drying sections and a central hybrid air-dryer by condensation and adsorption.
The Boxes
The box will be placed into the drying section. Each box place is provided with a fan. Dry air will be pushed through every individual box to make the product fluid and to dry homogeneous.
The outlet for each box place has a T°+HR sensor to measure outcoming moist content. When this air is damp, it will be blown to outside. When this air is dry, it will be recycled.
Intense drying with dry and cool air
Using dried and cooled air in a closed environment provides optimal control & quality.
Fluid drying of soaked seeds and pellets in boxes
Example of an installation for drying 100.000.000 seed pellets per hour.
The product is dried in phases according to a set menu for each individual box. The desired quantity, temperature and moisture content of the air programmed per phase. Per box the desired moisture content of the product will be reached.
Airflow per box: Outside Air – Heated Air – Wet Air
Start drying with 100% outside air. The air will be heated and squeezed through the product. The warm air adsorbs moisture and is dispatched to outside.
Airflow per box: Outside Air – Dried Air – Heated Air – Wet Air
While the product dries, dehumidified air will be added. That’s why the desired moisture content can always be reached.
Airflow per box: Dried Air – Heated Air – Recirculated Air
Start drying with 100% outside air. The air will be heated and squeezed through the product. The warm air adsorbs moisture and is dispatched to outside.
ABC-Software
Overview of the operating screen of a drying installation with 3 sections containing 5 box places each.
As an option each box place will be provided with an hot water radiator. Per phase the desired T° can be programmed individually; drying can start with high temperature because of all the moisture to be dehydrated.
Process to be programmed and controlled by a control panel with touchscreen and ABC software.
LED-lamps per box place for direct indication of the phase (blue last phase, white drying is ready). Information of the airflow going to the central air dryer and from the central air dryer to the sections and drying places.
Fluid drying in trays
For small quantities of treated seed (e.g. rinsed, pelleted) and fruit seeds, fast and even drying is usually of great importance. Preventing damage during drying (turning around) is also important.
Agratechniek offers the solution for small batches (2-10 kg) to achieve optimal
drying.
The installation for intensive and fluid drying can also be designed to dry the seed in trays. 6 trays are placed on a pallet (size equal to the drying boxes).
The installation is now equipped with 3 small high-pressure fans. Each fan with
enough capacity to dry seed in 2 trays fluidly.
In order to automatically regulate the control of the fans, the presence of a tray is detected.
The detection is passed on to the ABC processor, which adjusts the fan control accordingly:
- With 2 trays, 100% of the set air volume is blown through the trays.
- With 1 tray this is reduced to 50%.
- If there is no tray present, the fan will remain off.
In the ABC processor the control of the fans is clearly visualized per pallet with trays. There can be no misunderstanding about the presence of a tray; orange colored. Information is also visible about the air conditions of the incoming and outgoing air and where this air comes from.
Above, the detection sensors are clearly visible. An empty spot is so clearly signaled. It is also detected when a container without a lid is placed on the pallet. The ABC processor will then give a warning and the drying will not start.
It is also important that the drying area is closed when one of the two trays is not in place. There’s a closing solution for that.
The presence is also signaled by the ABC processor. Again a warning will appear and drying will not start.
This installation can also be used for larger quantities of seed in boxes.
Cross section and information about section 2 as visible in the ABC processor.
- Air conditions of incoming outside air and outside air
mixed with dried air, - Water temperature.
- Control of the basic heating.
- Controlling the heating per section.
- Temperature of the incoming air.
The heating of the process air takes place in two phases;
- Warming up to the base temperature for all drying areas.
- Extra heating to the specific temperature per drying
place (fine tuning).
Because of this the required further heating is limited when fine tuning the separate drying areas, the control is refined and the temperature is very accurate. Also, it is easier to use water with a low temperature.
Summary
Fluidized drying for intensive and controlled drying of wet seeds
Fluidized drying is a highly effective method for drying wet, soaked, or treated seeds and pellets. By using dry and cooled air, the product can be dried intensively while maintaining product quality. This technique allows drying to start even when the product is still in a very wet condition.
The product is placed in special drying boxes, where each box is equipped with its own fan. This allows dry air to be blown individually through each box, creating a fluidized product movement and ensuring uniform drying. Sensors continuously measure temperature and relative humidity of the outgoing air to accurately control the drying process.
During the drying process, fresh air, dehumidified air, and recirculated air are combined depending on the conditions. This ensures that optimal drying conditions are always achieved while maintaining high energy efficiency.
With ABC software, the entire drying process is automatically controlled. Settings for humidity, temperature, and drying time can be programmed per box and per drying phase. This enables precise and uniform drying, even for large volumes of seeds or pellets.
Fluidized drying installations therefore provide a powerful, flexible, and reliable solution for drying highly moist products and specialized seed treatments.
Dried air
Optimal drying
The air adapts during the drying process. The Agratechniek Drying Method uses three phases to achieve optimal drying and save energy.
Fluid Drying is highly suited for drying of Grass seeds, Seeds, Vegetable & Fruit seeds
Example installations
Curious about the right solution for your drying or storage challenge?
With our specialized technical expertise in drying and storage installations, we help you move forward.
