The tower itself contains 3 separate hoppers: from top to bottom a filling hopper, a weighing bunker and a dumping hopper.
The hopper will fill the weighing bunker until it holds a weight of 1500 kg. The filling hopper has a volume of several times the bins, so we have enough margin here to use a crane with a squeeze tray to fill this hopper continuously.
The hopper is equipped with a valve at the bottom. By opening the valve of the hopper, the weighing bunker below is filled. This weighing bunker is equipped with a continuous weighing system, which in turn is also self-learning.
Because the closing of the filling hopper is not immediate, but takes a few seconds, the system will learn by itself how long the filling hopper should be open to get the desired weight into the weighing bunker. This allows the system to determine a weight of 1500 kg to an accuracy of 5 kg.
As soon as the preset weight is in the hopper, the control system closes the hopper valve. After this step, the contents of the weighing bunker are emptied into the hopper, which in turn directs the catallist to the bin. In this way, the bins are filled to the maximum.