With the help of intelligent dry process for deep pre-concentration and fine wet process, TDS is used to replace old processes such as manual selection, jigging and shallow groove to realize lump coal pre-concentration; and TGS is used for 50-6(3)mm fine coal pre-concentration. The combination of TDS and TGS can further reduce the washing volume, slime production and washing process cost, and raise the stability of raw coal quality. The fine wet process is a customized solution that`s based on the integrated analysis of raw coal quality and the professional technical diagnosis on current washing process, equipment and intelligence level. Equipped with online monitoring devices, intelligent washing process equipment and intelligent decision-making technology, the fine wet process can provide guidence on the renovation and upgrading of equipment, system, and intelligent washing.