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Coal piles for bulk material

A distinction is made between longitudinal and circular stockpiles. Both have a reserve or interim storage function.

Coal Blending Bed

Various stockpile layouts are possible

The shape of the stockpile depends on the space available and the volume of the material to be stored. A rotary spreader is used to fill the stockpile, and material is taken from the pile using a scraper chain with buckets.

Basic storage tasks

Based on the specific task (buffering, collecting and distributing, blending/homogenising) and the resulting incoming and outgoing material flow, first the storage capacity is decided upon. Together with the material properties this then leads to a choice of available stacking and reclaiming methods as well as the two basic stockpile layouts, namely the longitudinal stockpile arrangement and the circular stockpile arrangement.


Longitudinal stockpile arrangement

  • High storage capacity (up to > 1.000.000 to)
  • Live storage volume lower than circular storage
  • Possibility of future expansion
  • Passive storage can easily be added on

Circular stockpile arrangement

  • Limited storage capacity (up to 100.000 to)
  • Live storage higher than longitudinal storage, endless continuous stacking & reclaiming possible
  • No future expansion possible
  • Storage Blending Bed

    Blending Bed

    A blending bed is used for storage and homogenisation of raw materials such as limestone, clay, coal or mixtures of other bulk materials.

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