1. Set up the procedure with contractor for coal selective
2. Provide the completed coal data for contractor and the supervisor
3. The supervisor must be strict control coal selective process
4. Have the penalty in case the contractor can not full fill
Benefits :
1. Minimize cost
a. Washing Plant
Operate washing plant 1 unit for underground coal and 10%dirty coal from open pit
b. Truck & Loader
Reduce working hours of equipment that transport coal tailing from washing plant
c. Environmental
Reduce water treatment problem
Direct dump ROM coal to Crushing Plant
Action to manage ROM coal & finished coal
1. Selective mining method must be apply with serious control
2. Utilize all existing contractor equipment
3. Stock yard management
a. Short term ---> Must be increase the stock yard area for the finished coal
b. Long term --- Install the radius stacker for managing stock yard of finished coal
Benefits :
1. Reduce cost from coal re-handling
Assumption
a. 0.23 US$/mt Rom coal
b. 80% ROM coal production
c. 2,000,000 mt/year
**Can reduce cost 368,000 US$/year
2. Increase reliability for coal supply