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Mining

A complete kiln line and preheater tower removed to make way for a modern replacement on the same footprint.

Client
Cement Manufacturer
Location
Rajasthan, India
Duration
6 months
Material handled
7,300 t
Project summary

Removal of an obsolete kiln line including a 78-metre preheater tower, rotary kiln, clinker cooler and associated ductwork, clearing the footprint for a replacement line while the plant's second line continued production.

Scope of works

  • Preheater tower demolition (78 m)
  • Rotary kiln shell sectioning and removal
  • Clinker cooler and ductwork dismantling
  • Refractory removal and disposal
  • Foundation removal to new line requirement
  • Footprint preparation for replacement line
The challenge

The plant's second kiln line stayed in production 30 metres away, with a shared electrical substation and a common raw material conveyor crossing the demolition footprint.

The preheater tower structure had been extended twice, and the drawings for the second extension could not be located anywhere in the plant's records.

Refractory volumes were substantial and required characterisation before disposal routing could be confirmed.

Our approach

The shared conveyor was re-routed on a temporary structure designed and built by our team, keeping the operating line supplied throughout. The substation was hard-protected and monitored for vibration.

The undocumented tower extension was surveyed and structurally modelled from scratch — a two-week investment that identified a transfer arrangement whose failure mode would have been serious had the demolition proceeded on assumed load paths.

Refractory was sampled by zone, characterised and routed to appropriate licensed outlets, with the reusable basic brick fraction recovered and returned to the client for their operating line.

The footprint was handed over surveyed and prepared to the replacement line's foundation requirement, allowing the new works contractor to start without a preparation period.

Outcome

7,300 t

Material recovered

100%

Production line uptime

340 t

Refractory recovered for reuse

Foundation-ready

Footprint handed over

Delivered on schedule

Programme

Plant deployed

Equipment mobilised against the engineered method for this programme. Where the correct machine was not in our own fleet, it was brought in rather than substituted.

  • 65 m high-reach excavator
  • 350 t crawler crane
  • Kiln shell cutting systems
  • Material handlers
  • Temporary conveyor structure
Site record

Cement Kiln Line Removal — site record 1
Cement Kiln Line Removal — site record 2
Cement Kiln Line Removal — site record 3
Cement Kiln Line Removal — site record 4
Cement Kiln Line Removal — site record 5
Cement Kiln Line Removal — site record 6
Similar scope?

If this looks like your asset, we should talk.

Send us the structure, the environment around it and the date you need it gone. We will come back with a method.