The chain conveyor is a reliable means of transport for the continuous transport, horizontal or inclined, of granulated and powdered products with a maximum particle diameter of +/- 15 mm. Chain conveyors are suitable for the transport of high capacities over long distances. They are also used as dosing equipment or discharge equipment.
A continuous chain runs in a rectangular trough. This chain transports the product in one direction from the trough, while the return part remains empty. The chain links are fitted with flights that transport the product. The conveyor chain is driven at the end of the trough via a sprocket. The return wheel has a tensioning device. From the intake to the outlet the product is pulled along the bottom of the trough as a gliding mass. The empty return part is supported along its entire length.
As the product forms a compact mass during transport, the thickness of the layer is larger than the height of the flights. The chain conveyor can be designed with intermediate outlets, provided with slides, in a manually controlled design, but usually with electro-pneumatic or electric control. An overflow valve with product sensors switches off the conveyor if the product cannot be discharged for any reason.