Covington Noon Optimists and Police Again Sponsor a 3 on 3 Basketball Tournament on July 29, 2017. The Covington Noon Optimists and Police again sponsor a 3 on 3 basketball tournament on July 29, 2017 at the Covington Basketball courts located at Maple and Grant Streets.
A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally iron, but also others such as lead or copper.
The blast furnace is similar in structure to a cupola furnace used in iron foundries. The furnace is charged with slag, scrap iron, limestone, coke, oxides, dross, and reverberatory slag. The coke is used to melt and reduce the lead. Limestone reacts with impurities and floats to the top.