Project Description
Name:      Dawukou Prep Plant, Ningxia Coal Mines Corp.  
Location:  Ningxia
Capacity:  3 MTPY
Coal Type:  Coking Coal
General:  This plant was initially built in 1965, and was in production in 1970. It is a mine centralized coal prep
                  plant.  Its original circuit was HM Vessel for coarse coal, Fine Jigging for fine coal, HM Cyclone for the
                  middlings from Jigs, and Flotation for fines.  The major separation devices were imported from Poland.
                  After 1970, this plant was upgraded several times, and the upgraded circuit changed a lot. 
  GTC's Design for Plant Upgrading
Starting from 1998, the plant upgraded its circuit again to improve its performance and products' qualities.  GTC provided the design for the plant's 1st-pahse upgrading for B-System in May 2002 using the 3-Product HM Cyclone Separation technology. The upgrading was very successful.  When raw coal properties were worsen, the upgraded circuit could still well performed so that the products' qualities could be ensured.
  Cleaning Approach
Use the 3-Product HM Cyclone.