Conveyor systems

Screw Conveyor with Spring Raking Mechanism

For greater operating convenience with lower-output boilers, and as a standard solution for higher-output boilers, a fuel storage facility is installed, requiring the use of a suitable conveying system depending on the type of fuel used. Fuel transport from storage areas—whether specially constructed silos or adapted rooms within existing buildings—is provided by a spatial extraction system. Storage facilities may have a circular, square, or rectangular floor plan (with a maximum aspect ratio of 4:3), and the floor can be located at, above, or below the level of the boiler room floor. The extraction system can be adapted to various storage layouts thanks to the conveyor's adjustable positioning relative to the boiler's intermediate hopper, allowing up to 230° horizontal and 25° vertical movement. The conveyor length can reach up to 12 metres. Our spatial extraction system is equipped with a robust screw conveyor featuring a double-supported auger shaft and progressive pitch design that prevents clogging. Fuel transport from storage begins automatically when an ultrasonic sensor in the intermediate hopper detects an insufficient fuel level. The time required to refill the hopper depends on the energy content and bulk density of the fuel. A servo-operated separation flap at the conveyor outlet provides protection against back-burning and is complemented by an emergency extinguishing system. The flap opens only for the time necessary to replenish fuel and then hermetically seals the intermediate hopper from the fuel storage area. Efficient emptying of large storage facilities is ensured by the uniform pressure exerted by the mixing arms across the entire diameter of the agitator. The diameter of the leaf-spring assemblies, combined with heavy-duty steel arms, can reach up to 5.5 metres. High reliability, long service life, and wear resistance are achieved through advanced design, high-quality materials, and durable components. This system is suitable for heating with various fuel types, including wood chips, pellets, shredded wood, soft briquettes, and more, depending on fuel availability, making it a highly versatile solution.

Combined Screw Conveyors

For boiler cascade systems, a shared conveyor solution can be selected as the optimal fuel transport option. This configuration uses a common agitator for both boilers while maintaining separate screw conveyors for each individual boiler.

Pellet Screw Conveyor

If the boiler is intended to operate exclusively on wood pellets, we offer a V-shaped storage system with inclined hopper walls at an angle of approximately 45°. This design allows the storage facility to be completely emptied and enables filling by blowing pellets directly from a tanker truck into the storage area. The maximum storage length is 6.5 metres. The only disadvantage of this design is the unused space beneath the sloped hopper panels.