Introduction

Coal Washing is a process of separation mainly based on difference in Specific Gravity of Coal and associated impurities like Shale, Sand & Stones etc so that we get relatively pure marketable coal without changing its physical properties. The more of this waste material that can be removed from coal, the lower its total ash content, the greater its market value and the lower its transportation costs.

The washed coking coal produced is despatched to steel Sector and the washed coal power is despatched to captive power plants of steel sector and power plants.

At Present there are total five numbers of running washeries in CCL, of which four are coking coal and one is non-coking coagwashery. However, two numbers of Non-coking coal washeries has been closed on safety issue in October 2020 i.e Gidi and Kargali. The technological life of any washery is 18 years.

A  Coking Coal Washeries:

- lnstalled capacity 9.35 MTY & Effective/Operative Capacity due to ageing- 4.0 MTY

  1. Rajrappa Washery
    Rajrappa Washery was commissioned in 1987 constructed by M/S MAMC. Its installed capacity is 3.0MTY of raw coal feed. However, at present Effective/Operative capacity is 1.7 MTY due to ageing. It is based on Jig washing technology.
     
  2. Kathara Washery
     Kathara Washery was commissioned in 1969 with soviet collaboration. Its installed capacity is 3.0 MTY of raw coal feed.However, at present Effective/Operative capacity is 0.8 MTY due to ageing. It is based on Heavy media bath & heavy media Cyclone washing technology.
     
  3. Kedla Washery
     Kedla washery was commissioned in 1997 designed by HSCL with installed capacity of 2.6 MTY of raw coal feed. However, at present Effective/Operative capacity is 1.3 MTY due to ageing. Washing process of Kedla Washery is Jig based.
     
  4. Sawang Washery
     Sawang Washery was commissioned in 1970 in collaboration with M/S McNally and M/S KHD Wedag and its installed capacity of 0.75 MTY of raw coal feed. However, at present Effective/Operative capacity is 0.2 MTY due to ageing. The present washing process is based on Jig Technology.
     
B   Non coking Coal Washeries:

- Installed capacity 6.50 MTY.

  1. Piparwar Washery
    It was commissioned in 1997 with Australian collaboration having installed capacity 6.5 MTY of raw coal feed. It is based on Jig washing technology.
     
Railway Siding associated with Washeries:-
Rajrappa: - It has its own railway siding in the Washery premises. Marshalling of Wagon is done by winch system.

Kathara:-  It has its own railway siding in the Washery premises. Marshalling of wagon is done by railway engine.

Sawang: - Sawang Washery has its own railway siding in the Washery premises. Marshalling of Wagon is done by winch system.

Kedla :- Kedla washery does not have railway siding in the Washery premises. Products are transported by tipping truck to the Chainpur siding situated about 15Km from the Washery. Loading is done by pay loaders to the wagons.

Piparwar:- Piparwar Washery does not have railway siding in the Washery premises. Products are transported by tipping truck to the Bachra railway siding situated about 8 Km from the Washery. Loading is done by pay loaders to the wagons.