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Commissioning

All Geelen Counterflow dryers are sold with control systems and commissioning by a Geelen Counterflow engineer. The Geelen Counterflow engineer will start commissioning on site. If for some reason there is no commissioning by a Geelen Counterflow engineer, use the steps mentioned below as a reference.
Geelen Counterflow
03/14/2023

Commissioning

All Geelen Counterflow dryers are sold with control systems and commissioning by a Geelen Counterflow engineer. The Geelen Counterflow engineer will start commissioning on site. If for some reason there is no commissioning by a Geelen Counterflow engineer, use the steps mentioned below as a reference.

    Commissioning before trial operation (no power to unit)

    The wiring diagrams are accompanied by a terminal strip which indicates which components must be connected to which terminals. Use this terminal strip to check whether all the terminals in the box are actually and correctly connected.

    • Warn all those present before switching on the power • Switch on all motors in manual mode and check the direction of rotation of the motors. • Check whether the gate opens and closes as described in the relevant section.

    Starting up for the first time (Continuous dryer)

    Before starting up the system, several basic parameters should be set on the machine.

    Adjust the product level sensors to a product layer thickness of 30 – 50 cm. Overflow sensors on each deck prevent overfilling of the decks.

    Product distributor

    In case of a continuous dryer, set the quantity of product to be discharged per unit of time. Set the open and close positions to approximately 25% and 15%. Each discharge should lower the product bed depth with 2-3 cm. It is recommended to use a base setting of 10 seconds between strokes, when starting the machine for the first time.

    Determine the minimum and maximum values to be set as defined for this dryer. Make sure that the product’s fluidization air speed is not reached.

    Set the temperature of the drying air entering the dryer to the value as determined for this project.

    Starting up for the first time (Batch Dryer)

    Before starting up the system, several basic parameters should be set on the machine.

    In case of a batch dryer no level sensors are used for maintaining the product layer thickness, as discharging is controlled by a batch timer. Overflow sensors on each deck prevent overfilling of the decks.

    Adjust the belt distributor, please refer to the corresponding chapter of the manual for instructions.

    In case of a batch dryer, set the residence time of the product on the deck (batch time). Each discharge cycle should completely discharge the product from one deck to the next (or hopper).

    Determine the minimum and maximum values to be set as defined for this dryer. Make sure that the product’s fluidization air speed is not reached.

    Set the temperature of the drying air entering the dryer to the value as determined for this project.

    Verify correct operation of buttons

    Starting (during commissioning)

    Batch dryer basic

    Continous dryer specific

    Press “Stop”. The system should stop

    Manual discharge of gate

    Emptying system

    In case of a batch deck, a deck is emptied automatically.

    Continuous dryer specific

Source: Geelen Counterflow (Community Member)

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