Miller Magazine Issue 137 May 2021

68 COVER STORY MILLER / may 2021 means that the equipment is removed from the produc- tion line only if there is direct evidence that there has been noticeable performance deterioration. Predictive maintenance is based on the same principle of preventative maintenance even though it uses differ- ent criteria to determine specific maintenance needs. Another plus is that the need to perform maintenance occurs only when the need is real, and not after the pas- sage of a certain period Corrective Maintenance This is a concept carried out to avoid equipment fail- ure, equipment reliability improvement being expanded so that equipment failure can be removed (increased re- liability), and equipment can be easily maintained (main- tenance of equipment upgrade). The main difference between corrective and preventive maintenance is that the problem should exist before any corrective action is taken. The purpose of corrective treatment is to improve the reliability of the equipment, the ability of the mainte- nance, design flaws (material, shape), equipment under- going structural reform, reduce damage and failure. In conclusion, The assessment of how well the mill is performing in- volves measuring each production day’s flour yield for each milling unit. While variations between daily produc- tion yields are expected to occur, it is nevertheless im- portant for the mill manager to understand what factors have the greatest impact on daily yield. These factors might include grain characteristics such as moisture con- tent or kernel weight, or environmental characteristics such as temperature and/or humidity in the mill. There are many other factors, and technological ad- vancement in milling which can be implemented and use in improving milling performance. Most importantly, managing the process effectively is crucial in any milling industry. The miller or mill manager must be well equipped, trained and have a good knowledge of how to handle the cleaning and milling processes from the intake of the raw material, cleaning of the wheat, tempering and mill- ing of the wheat to the finished product. The miller must be able to balance and set the mill, using the necessary tools and measures, check the break releases to ensure the break rolls release and ensure consistency in the mill performance. About the Author: Owonifari Kehinde Peter is a mill technologist. He ob- tained a degree in Electrical Engineering. Presently pur- suing his MBA degree program at the University of Suf- folk, UK. He started his milling career in one of the largest flour milling companies in Nigeria, 11 years ago, where he started as trainee miller to senior miller level. He is presently working with Crown Flour Mills Ltd (Olam Grains Pasta) in Nigeria. He is responsible for leading his team in the production of pasta flour, oversees the milling activities and ensures the flour produced is consistent in quality, hygienic for human consumption and meets customer satisfaction. He also has a passion in training millers in order to develop strong milling skills, organized and manage plant main- tenance projects to keep the facility safe, efficient and clean. Peter is one of the pioneers set of the African Milling School, Kenya-Nairobi in 2015, where he graduated with a diploma in milling and came out as the 1st runner-up best graduating miller. He is also a graduate of the Swiss School of Milling, St Gallen, Switzerland, where he also bagged a diploma as a mill technologist. He also owns a Certificate of Professional in 48hrs Occupational Health and Safety Manager (OSHA), Advance Certificate in NABIM (Uk- City &Guilds). Peter is a trained miller and manager and has handled numerous jobs which include; commissioning of bread flour mill, pasta/ semolina mill, soft biscuit and sorghum mill. Source: Canadian Wheat Board. www.cwb.ca . Fig 1: Parts of a wheat kernel