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Crusher Feeding with Arched Plate Conveyors

September 18, 2019
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Heavy-duty Aumund arched plate conveyor SF
Heavy-duty Aumund arched plate conveyor SF
Aumund arched plate conveyor in heavy-duty design, type BPB-SF
Aumund arched plate conveyor in heavy-duty design, type BPB-SF
Aumund arched plate conveyor in heavy-duty design, type BPB-SF
Aumund arched plate conveyor in heavy-duty design, type BPB-SF

In 2015, Cementownia Warta made 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 another arched plate conveyor to the Warta plant in Dzialoszyn to feed limestone to the crusher at a conveying capacity of 1500 tn/hr.

“We helped the customer on both projects from the beginning, providing support with the layouts and choice of the appropriate conveyors,” said Aumund sales engineer Peter Heberle and AUMUND project engineer Guido Mirbach.

In 2017, Budkrusz ordered a BPB-SF heavy-duty arched plate conveyor for the project at Transkom, also for limestone but with a capacity of 750 tn/hr. The following year another heavy-duty arched plate conveyor was supplied to Poland, to Zaklady Wapiennicze Lhoist for its Tarnow Opolski plant, with a conveying capacity of 1000 tn/hr of limestone.      

The 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 that overlap to create a rounded surface at the chain wheel in the discharge area. A cleaning scraper can be installed there 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.

BPB-SF heavy-duty arched plate conveyors are primarily arranged under tipping stations and convey uncrushed raw materials, such as limestone and natural gypsum with dimensions of up to 1500 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 3000 mm are available. Accordingly, the track chains have breaking loads of up to 2 x 4200 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, 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,” explained Heberle. In all three applications the arched plate conveyor stands out as a technically ideal and cost-effective piece of conveying equipment.

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