Millions in the dump: how much does it actually cost to stick ore in bunkers and bodies?
The problem of sticking of bulk materials — ore, concentrates, coal, agglomerate — in bunkers, heat sinks, transshipment units and dump truck bodies is one of the most underestimated in the mining and metallurgical industries. At first glance, this is just an annoying nuisance that requires periodic cleaning. However, this "minor" problem hides multimillion-dollar losses, reduced productivity and serious risks to staff safety.
Hidden losses: When an "empty" flight costs money
The sticking of the material leads to a decrease in the useful volume of vehicles and containers. A mining dump truck designed to carry 100 tons of ore can actually carry 85-90 tons due to the residues stuck to the body walls. This means that up to 10-15% of each flight is paid for "air" or, more precisely, non-transported material. On the scale of a large mining and processing plant, where hundreds of flights are carried out daily, these percentages turn into colossal amounts. According to experts, the performance of the equipment can decrease by up to 40% due to adhesion.
In addition, the adhering material increases the weight of the container, which leads to fuel overspending and increased wear on the chassis of vehicles. These are additional, often unaccounted for, costs that directly affect the cost of the final product.
Simple equipment: the price of every minute
The need for regular cleaning of bunkers and bodies leads to unscheduled equipment shutdowns. Every minute of downtime on a conveyor line, crusher, or transshipment point results in a loss of profit. In the mining industry, the cost of an hour of downtime can reach hundreds of thousands or even millions of rubles, depending on the scale of production. These losses include not only lost products, but also the cost of paying staff during downtime, as well as possible penalties for supply disruptions.
Traditional cleaning methods — manual work using crowbars, sledgehammers, and sometimes hydraulic monitors — are not only laborious and ineffective, but also dangerous. The descent of a worker into a bunker to collapse the "visors" of the stuck ore is associated with a high risk of accidents, which entails not only human tragedies, but also serious legal and financial consequences for the enterprise.
Problem solving: innovations in lining
An effective solution to the problem of sticking and related losses is the use of modern lining materials. In particular, composites based on ultrahigh molecular weight polyethylene (UHMWPE) demonstrate outstanding anti-adhesion and wear-resistant properties. Materials such as polyceramoplast,