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PROJECT

ENEL power plant - GR2 decommissioning

WORK PERFORMED

  • Industrial Plant decommissioning
  • Deconstruction by controlled disassembly
  • Overhead sectioning of steelwork elements
  • Top down demolition
  • Lowering boilers with hydraulic jacks

LOCATION

Corigliano-Rossano (CS), ENEL Power Plant (2021)

BOILER DECOMMISSIONING

As soon as the work at the power plant to decommission Groups 3 and 4 is completed, Armofer repeats the procedure set up to deal with Group 2. The heart of the operation, once the back boiler area is opened, is the gradual lowering of the boiler in stages, from its 53 m to the ground. At +53 m, after sectioning the roof, the rappelling system is mounted, which employs hydraulic jacks for progressive lowering to the ground, sliding within its own steel yoke. To limit weight, the structure is sectioned into two parts, boiler and economizer, proceeding to lower one and the other alternately. Deconstruction then takes place from below, with hot cutting and mechanical demolition by UHD excavators of portions of about 15 m. The cycle is repeated until the rappel is completed. Upon completion, the dismantling of the boiler-castle, from + 53m to +25m with the aid of the crane; from + 25m to the ground with UHD excavators equipped with shears.

STEPS OF INTERVENTION

  • DeNox mechanical demolition
  • Electro-filter demolition
  • Back boiler area demolition
  • Lowering and demolition of the boiler body with jacks (alternating boiler/economizer)
  • Demolition of castle structure supporting the boiler / hot cutting at height
  • Mechanical demolition of above-ground iron structures from 30/35 m to 0 with UHD excavators

Gallery

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