Crusher Feeding with AUMUND Arched Plate Conveyors
Rheinberg, 1. September 2019
In 2015 Cementownia Warta was the first Polish company to make the decision to install an AUMUND Arched Plate Conveyor, for hopper discharge of clinker and sticky raw materials such as natural gypsum. Just one year later AUMUND supplied a further Arched Plate Conveyor to the Warta plant in Dzialoszyn to feed limestone to the crusher at a conveying capacity of 1,500 tph.
“We helped the customer on both projects from the beginning, providing support with the layouts and choice of the appropriate conveyors,” according to AUMUND sales engineer Peter Heberle and AUMUND project engineer Guido Mirbach. In 2017 Budkrusz ordered a heavy-duty Arched Plate Conveyor type BPB-SF for the project at Transkom, also for limestone but with a capacity of 750 tph. The following year another heavy-duty AUMUND Arched Plate Conveyor was supplied to Poland, to Zaklady Wapiennicze Lhoist for its Tarnow Opolski plant, with a conveying capacity of 1,000 tph of limestone.
The AUMUND Arched Plate Conveyor is primarily used for sticky raw materials such as gypsum, anhydrite, clay and marl-clay mixtures. Its construction is of arched plates which overlap to create a rounded surface at the chain wheel in the discharge area. A cleaning scraper can be installed here in order to remove sticky material from the plates. A drive unit combined with a frequency converter allows the speed of the conveyor to be regulated, to achieve the conveying capacity at a defined velocity.
Heavy-duty Arched Plate Conveyors of the type BPB-SF are primarily arranged under tipping stations, and convey un-crushed raw materials, such as limestone and natural gypsum with dimensions of up to 1,500 mm, to the crushing plant. The thickness of the plates depends on the particle sizes of the material, the throughput and the dimensions of the hopper funnel. To accommodate these requirements, many plate thicknesses and widths of up to 3,000 mm are available. Accordingly the track chains have breaking loads of up to 2 x 4,200 kN.
The BPB-SF design features heavy-duty, fixed, slide-bearing rollers, as used in crawler undercarriages, which are arranged underneath the track chains. In addition, AUMUND Arched Plate Conveyors are supplied with a spillage conveyor to remove fines without the need for manual cleaning.
“The choice of a suitable discharge system relies heavily on the bulk material properties, the silo or hopper shape as well as the technical requirements of the process,” explains Peter Heberle. In all three applications the AUMUND Arched Plate Conveyor stands out as a technically ideal and cost-effective piece of conveying equipment.
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