Belts - The better choice
BEUMER belt apron conveyors transport hot materials safely and efficiently
Conveying systems must meet the most stringent requirements for transporting hot materials safely and efficiently. This especially applies to the transport of cement clinker. The clinker leaves the furnace cooling system at temperatures of up to 600 °C and is stored temporarily in the clinker silo. To ensure a trouble-free transport of the clinker, the conveying system must withstand these high temperatures. In addition, low purchase costs, as well as operation and maintenance expenses, are important factors in the cement industry. With its state-of-the-art belt apron conveyor, BEUMER offers an integrated solution which is tailored specifically to meet these requirements. This solution is based on field-proven belts as used in our bucket elevators. Depending on the field conditions, purchasing costs can be up to 20 percent lower than for apron conveyors with a chain as traction element.
The cells transporting the hot material are not moved by a chain, but by a belt. The belt is reinforced by steel wires and can be supplied with widths ranging from 630 mm to 1,400 mm. In the feeding area the belt is - in case of instable kiln operation - protected by guards that prevent contact with clinker. Compared to a chain, the belt has a lower weight, which enables large lifting heights. Nevertheless, with up to 1,300 m3/h, the belt apron conveyor reaches a higher conveying capacity than the conventional apron conveyor with chain, thanks to higher running speeds of up to 0.6 m/s. The entire belt lies with its surface on the drive and return pulley. Thus, the unwanted polygon effect caused by the chain is avoided. This ensures quiet running and low noise emission, and avoids additional load by vibrations, as well as noise to the plant and the adjacent buildings. Thanks to the compact and narrow design of the belt apron conveyor, overall project costs are reduced.
The BEUMER belt apron conveyor enables angles of inclination of up to 45°. Wear is avoided by using a belt instead of a chain. Lubrication of the traction element is not required. This represents a contribution to environmental protection. The BEUMER belt apron conveyor is first choice for system modernisations. Thanks to faster conveying speeds, higher quantities of material can be transported while keeping the existing conveyor frames and steel bridges.