Khristinovsky grain storage complex

Khristinovsky grain storage complex

KMZ Industries and Alebor Group, which owns Khristinovskoye HPP, have long-term cooperation.

Its first stage was in 2009–2012. Then there were cone silos with a diameter of 7.3 m, silos on a flat base with a diameter of 16.5 and 27.5 m, as well as scraper chain conveyors.

Later, in 2017-2018. Khristinovskoye HPP expanded, and KMZ Industries also acted as a supplier of elevator equipment.

Now at Khristinovsky HPP there are installed:

• silos with a capacity of 136,000 tons of one-time storage;
• silos for operational storage with a capacity of 6,000 tons;
• 2 chipboard grain dryers with a capacity of 50 t/h;
• separator KBS with a capacity of 150 t/h;
• transport equipment.

In 2017, a Brice-Baker grain dryer with a capacity of 168 t/h was installed. In 2018, it was modernized: the BB.SCN 16/72 model was expanded to BB.SCN 16/120 (2 mines were added to the existing ones). Now a grain dryer 12 m long is operating at the KhPP, its productivity is 280 t/h at 5% moisture removal.

In 2018, the KMZ Industries design bureau developed a new scheme for a reversible scraper conveyor especially for this client. Its task is to connect existing and new storage volumes after the expansion of the elevator and ensure the transfer of products, taking into account the routes that have appeared. Conveyor features: long transportation length (60 m), productivity (175 t/h) and placement on a flyover.

These characteristics required the development of a unique solution. To provide the necessary performance on such a large conveyor in reverse mode, a powerful drive is needed. Its classical placement in the center or offset to the side would lead to a local overload of the bridge. To avoid this, the conveyor provided two drive stations and a chain tensioning station located in the center of the conveyor, and the synchronization of the drives was implemented using a frequency converter. The drive is implemented by two geared motors operating synchronously.