tarboat's photos with the keyword: slag

Luossavaara-Kiirunavaara Aktiebolag (LKAB) is a Swedish mining company. The company mines iron ore at Kiruna and at Malmberget in northern Sweden. The company was established in 1890, and has been 100% state-owned since the 1950s. In 1918 the company purchased the Francis Flower business in the UK which included the GBSS processing plant at Scunthorpe steelworks. Ground Granulated Blast furnace Slag (GGBS) is produced by quenching molten iron slag from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder. It replaces up to 70% of the Portland Cement in concrete, and can significantly reduce CO2-emissions. Francis Flower produced GGBS in Scunthorpe on the grounds of British Steel upgrading their blast furnace slag. LKAB is also a significant supplier of highly upgraded iron ore products to British Steel, the first deliveries were made in the 1930’s. Francis Flower was the second largest supplier of GGBS in the UK. The plant in the near background is operated by Calumite Limited which supplies glassmakers in the UK and overseas with Calumite, a refined blast furnace slag. Calumite is a glassy calcium-alumina-silicate that is used as a raw material in all types of soda-lime-silica glassmaking.

Hot work on the slag tipping area at the ArcelorMittal integrated steelworks at Dunkerque. The plant produces more than 6 million tonnes of steel per year.

Action under the furnaces at the Benxi steelworks. Photo courtesy of Tarboat junior.

Steam on the slag tipping at Baotou steelworks is now just a memory.

With the end of steam working at Baoutou steelworks imminent, here is a reminder of how it looked when tipping the liquid slag. The light on the drifting steam was worth waiting for and lasted for just a few seconds.

The huge South Bank cokeworks gasholder is almost entirely hidden by banks of slag when viewed from Lackenby.

Drawing off slag from one of the blast furnaces at the Baotou steelworks in the Mongolian Autonomous Region of China.

Dusk falls on the slag banks of the Baotou steelworks in the Mongolian Autonomous Region of China.