The flow of the VPSA-O2 device provided by PIONEER to Wugang Sino-Canada Steel Co., Ltd. is 10,600Nm3/h and the purity is 80%. It is applied to the oxygen-enriched combustion of the Blast Furnace #1 (1,260m3) of Sino-Canada Steel. The blast-furnace oxygen enrichment technology has been commonly recognized by the industry as an effective way to reduce the production cost and elevate the economic benefit.