At Taman Seaport in Krasnodar Region on the Black Sea, two Triple Wagon Unloading Systems designed by SCHADE Lagertechnik GmbH (Gelsenkirchen/Germany) have been in operation for the Russian company OTEKO Portservice since the beginning of 2020, and have so far unloaded well over 20 million tons of coal. Each System has a Wagon Charger capable of pulling 36 loaded wagons, each weighing up to 110t, successively through the unloading station. During operation the wagons have to be heated so that frozen coal will discharge when tipped. In order to reduce waiting time while the coal thaws, SCHADE and OTEKO have developed an innovative technical solution.
Currently the defrosting operation takes around 20 minutes per train, increasing the unloading time from 36 minutes to 56 minutes in winter months. As the current design capacity of the Wagon Chargers is limited to 36 wagons, each incoming train of 72 wagons needs to be split into two strings of 36 wagons by the port operators, with each shortened string requiring the 20 minutes defrosting time. In order to reduce the unproductive thawing time and thus increase the unloading efficiency, the Wagon Charger capacity will be increased from 36 wagons to 72 wagons. The required 20 minutes defrosting time is now applicable to the longer train with twice the number of wagons. Because of the increased Wagon Charger capacity, once the first 36 wagons of a 72 wagon train have been unloaded, the port operators have the option of adding a further 36 wagons to the rear of the train to effectively provide continuous unloading, without the need to stop for thawing.
In order to implement this technical solution with a minimum of investment costs, SCHADE worked closely with OTEKO Portservice to design Wagon Chargers for which many components and equipment parts of the existing Wagon Chargers can be used. The new components which will be required are being fabricated individually and will be supplied end of this year. After installation of the parts into the existing Charger, which will be taken out of operation while this is carried out, the first extended Wagon Charger will be ready in time for the winter season 2021/2022. Afterwards the second Wagon Charger will be converted.