Sandvik Prisec® HSI at the heart of new environmentally friendly recycling plant
When planning a new recycling plant near Vienna in Austria, the company Schneps was after a new solution. This had to be able to deal with a variety of building waste, turning the material into valuable high quality products in an environmentally friendly and economical way. In order to do this the company had little hesitation in choosing the new CI521 Prisec® Horizontal Shaft Impact crusher from Sandvik Construction.
Since its founding 30 years ago, Schneps, a company based in Stockerau, Lower Austria has evolved its business from being a shipping and forwarding agent to now being a recycling specialist. In addition to clearing plot areas, the company transports any excavated material with its own fleet, which now comprises of 30 trucks.
The company has also widened its activities to also include supplying sand, ballast, humus soil and frost protection layers, amongst other materials. In order to raise this production and supply to another level, Schneps decided to build a completely new recycling plant near Vienna. In order to do this in a productive and environmentally friendly way as possible, the company contacted BAG Klöch Aufbereitungstechnik, Sandvik Construction's distributor for crushing and screening equipment in Austria.
Following intense discussions and planning meetings between Schneps, BAG and Sandvik, a flowchart was created using the Sandvik PlantDesigner© software. This created a virtual plant tuned to Schneps' exact requirements and needs. At the core of the newly designed recycling plant is the Sandvik Prisec® CI521 horizontal shaft impactor. This new generation of compact horizontal shaft impactors (HSI) from Sandvik Construction combines low investment costs with the highest performance.
They are able to efficiently process a wide range of materials, in a variety of application areas, at a very low operating cost.
The key to this is operational flexibility which is ensured as the modular design of the Prisec® series enables conversion of the equipment from primary to secondary crusher in a short time, and without the use of any additional parts. The new crushing chamber configuration enables a higher crushing rate than before. Additionally, and besides the improved productivity, the new crusher features universal wear parts and a low maintenance requirement.
The CI521, which was chosen by Schneps, is equipped with two infinitely adjustable, hydraulic-operated curtains, which together with the newly developed braking system enables the corresponding impact curtain to be lifted and held in position when any uncrushable material enters the crusher. Both the first and the second curtains are equipped with an adjustment/braking system, located on the cross-beams of the crusher. With this new generation of HSI's, blockages, crusher downtime as well as hazards for health and safety are kept to a minimum, resulting in maximum utilization of the operating time.
The core components of the crusher are the rotor and the hammers. The weight and improved design of the rotor easily gives the crusher the inertia needed for optimum crusher performance. The modular design (banana shape) of the hammers ensures a uniform wear pattern during the entire wear or service lifetime, producing a uniform product. An additional safety aspect is the key safety interlock system, which ensures safe maintenance, preventing the unintentional opening of the crusher or the inspection hatches.
Things moved rapidly for Schneps; from the initial planning to the award of the contract was a mere 14 days. Following two months of plant construction work, the CI521 was installed and commissioned. With its 50 employees, Schneps is now able to efficiently deal with building waste recycling in a radius of 50 to 70 km around Stockerau, turning this waste material into high-quality products, supplying the Austrian market in an environmentally friendly and economic manner.
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