Focus on Highest Quality and Environmental Care
New Stationary Conveying and Classifying Plant Made by SBM
The gravel works Schebler in Baden-Wuerttemberg/Germany invested in building a new SBM conveying and classifying plant on steel silos for the processing of limestone including dosing and loading equipment. Schebler has supplemented its existing machinery starting from the secondary crushing stage on and can thus fulfil all customer requirements fully automatically.
The new plant works fully automatically with three screening machines strictly separating 9 different final grain sizes from 0/2 mm up to 56/X(120)mm. The grain sizes are stored in 9 silos which are each equipped with dosing units. In combination with a PLC loading unit these dosing machines can dose individual grain sizes and grain size blends according to the weight and blending relations as requested by the client. The respective individual grain sizes are delivered to the loading station by a collecting conveyor running below the silos.
The loading station is equipped with a run-through pan mixer to obtain homogenous mixtures and a single-grain-size hopper which are mounted on a mobile base frame. To load the material the complete loading unit is lowered to the level of the loading floor of the lorry to avoid de-mixing respectively dust forming. When the volume of the loaded material increases, the complete loading unit is automatically pulled up so that the material is transferred from a very low height to reduce dust forming and de-mixing to a minimum. Another conveyor belt allows for conveying partial quantities to the existing loading conveyor belt to discharge individual grain sizes. The loading capacity is very impressive as up to 800 tons of material are loaded per hour.
To meet the high quality demands of the company Schebler a dust extraction concept was elaborated right from the start in co-operation with the company FB Filterbau. A plant to remove filler is integrated in the fine fraction hopper to reduce the crushed sand 0/2 mm of fines and filler to the admissible values in accordance with EN12620. Additionally, dust is collected from the closed screening machine systems as well as from all machines and devices, transfer chutes and hoppers by a dust extraction system. The collected dust is stored in a silo and loaded into silo vehicles by screw conveyors with a loading system.
The company SBM Mineral Processing GmbH is a full-package supplier for mineral processing and conveying plants for the raw material and recycling industries as well as for stationary and mobile concrete mixing plants including service and support. Decades of experience in engineering and manufacturing make the enterprise a strong partner for sophisticated solutions. SBM belongs to the powerful MFL Group. For this reason our clients can dispose of the complete company networks concerning know-how, capacities for manufacturing and assembly as well as worldwide dispatch logistics and purchasing logistics.