E.S.C.H. Engineering Service Center & Handel GmbH

Injection of pulverized coal into the tuyères of blast furnaces using a static distributor

PCI+® S is characterized by:

Main conveying pipeline to static distributor with injection pipelines
Minimum wear and tear due to low conveying velocity
High availability of the PCI+® S installation of more than 99 %
High specific conveying flow rate of more than 400 kg/cm²/h
Troubel-free adaption to the blast furnaces due to:
- Small diameter of the injection pipelines (12 - 26 mm)
- Erection of the PCI+® S installation in High distance from the blast furnace
  (length of the main conveying pipeline up to 700 m)

Injection of pulverized coal into the tuyères of blast furnaces using a distributor vessel

Injection of pulverized coal into the tuyères of a Cupola by means of a vessel-distributor.
PCI+® VC is characterized by:

Vessel-distributor with single independent conveying pipelines based
on the dense-phase pneumatic transport
Multiple dosing of the pulverized coal out of a fluidized bed for equal distribution over all conveying lines
Extreme small specific conveying rates possible (from 30 kg/h per single conveying pipeline)
Minimal wear by low conveying velocities
High availability of the PCI+® VC - equipment (nearly 100 %)
Extreme high specific conveying rate (more than 650 kg/cm²/h)
Uncomplicated adaptation to existing Cupolas by:
Small diameter of the single conveying pipelines (10 - 14 mm internal diameter)
Erection of the PCI+® VC - Silo and intermediate conveying plant in large distances of the
vessel-distributor (up to 500 m)
Small required space for the vessel-distributor near by the Cupola
Ultralow nitrogen - input into the Cupola (10 - 15 Nm³/t oulverized coal)
Use of various pulverized coals and coal mixtures
Use of Oxycoal lances for complete coal combustion