%0 Conference Paper %1 howard2007maintaining %A Howard, T. J. %A Everett, J. E. %B Iron Ore Conference %D 2007 %K 86a32-geostatistics 90c20-quadratic-programming %P 103-108 %T Maintaining Product Grade from Diverse Mine Sites at BHP Billiton Iron Ore Newman Joint Venture %X At BHP Billiton Iron Ore Newman Joint Venture (NJV) ore is railed from four separate mine operations in the Newman area to Port Hedland, where the ore is screened, crushed and blended to produce lump and fines NJV products. Each mine’s grade varies separately, so it is important that a centralised system is in place to control the overall blend and ensure that the products meet customer expectations. It is important that graderelated decisions are built into the normal production process and have minimal impact on production rates. A continuous stockpile management system (CSMS) covering the whole NJV production process is used to generate the daily crushing schedule, taking into account all currently available ore sources. Innovative additions to the CSMS provide more accurate information to support decision making by the mine schedulers; for example, blasthole estimates are continually adjusted for bias compared to crusher and port rake grades; lump-fines (L-F) grade split and beneficiation plant upgrade algorithms are updated on a continuous basis, and the dilution effect, which impacts on reported port rake grades, is removed.

@inproceedings{howard2007maintaining, abstract = {At BHP Billiton Iron Ore Newman Joint Venture (NJV) ore is railed from four separate mine operations in the Newman area to Port Hedland, where the ore is screened, crushed and blended to produce lump and fines NJV products. Each mine’s grade varies separately, so it is important that a centralised system is in place to control the overall blend and ensure that the products meet customer expectations. It is important that graderelated decisions are built into the normal production process and have minimal impact on production rates. A continuous stockpile management system (CSMS) covering the whole NJV production process is used to generate the daily crushing schedule, taking into account all currently available ore sources. Innovative additions to the CSMS provide more accurate information to support decision making by the mine schedulers; for example, blasthole estimates are continually adjusted for bias compared to crusher and port rake grades; lump-fines (L-F) grade split and beneficiation plant upgrade algorithms are updated on a continuous basis, and the dilution effect, which impacts on reported port rake grades, is removed.}, added-at = {2022-11-14T00:45:03.000+0100}, author = {Howard, T. J. and Everett, J. E.}, biburl = {https://www.bibsonomy.org/bibtex/2818ec62e7395196dee197ad5650ead08/gdmcbain}, booktitle = {Iron Ore Conference}, eventdate = {20-22 August 2011}, interhash = {8a3774fdf5d5a239dbfb570f70931ded}, intrahash = {818ec62e7395196dee197ad5650ead08}, keywords = {86a32-geostatistics 90c20-quadratic-programming}, month = aug, pages = {103-108}, timestamp = {2022-11-14T00:48:07.000+0100}, title = {Maintaining Product Grade from Diverse Mine Sites at BHP Billiton Iron Ore Newman Joint Venture}, venue = {Perth, Western Australia}, year = 2007 }