Renovation of the secondary flotation at process at Qipanjing coal preparation plant

Imperfection of flotation circuit and considerably high ash of flotation concentrate are the problems confronted by the plant. Following an analysis of the present status,a renovation work is made of the secondary flotation process. After upgrading of the flotation circuit,the yield of concentrate has seen a rise by 15 percentage points while the ash of the concentrate is controlled within the specified limit.This has brought forth remarkable economic benefits.