International Cement Review articles tagged under : Manufacturing Technology
Rapid screening
Traditional screening methods to evaluate the quality of natural pumiceous pozzolans for cement production are not entirely compatible with a production process that requires a steady pace in the supply of high-quality raw materials. To help increase the speed of this evaluation, Cementos Progreso developed a rapid screening method using XRD analysis to determine the hydraulic activity index o...
Setting a roller record
In 2014 El Nadha Cement plant in Qena, Egypt, completed an overhaul of its VRM roller bearings in record time. This was achieved through good preparation, an experienced on-site team and effective communication betwe...
Bold Bulandshahr
Shree Cement Ltd (SCL) has expanded rapidly over the last decade, from just 5Mt in 2007 to 29.3Mt cement capacity in 2017, making it the third-largest cement producer in India, after UltraTech and LafargeHolcim. Its ...
Nova Cimangola II
To lower its production costs, Nova Cimangola has constructed its new clinker line in Sequele, Luanda, near its existing plant in Cacuaco. The new clinker line is to make the company self-sufficient in clinker, avoid...
Welding repairs for kilns
Despite forming an integral part of many process lines, the importance of maintaining the rotary kiln in prime operating condition is often overlooked or misunderstood. Poor maintenance can cause long-term issues, in...
Scrubbing technology
When it comes to emission-reduction technology, how does a plant know it is selecting the right technology for the job? Redecam believes its DeSOx technology, known as RDS, provides the ideal solution for both the ce...
Lighting up the mighty Xuan Thanh
Vietnam’s first mega plant and 12,500tpd kiln line was commissioned by Xuan Thanh Cement JSC at Ha Nam on 9 October 2017. The line is a bold statement and an apt symbol of the tremendous development achieved by Vietn...
Not simply calcining
While the primary purpose of the calciner in a cement plant is to aid decomposition of calcite from the preheated raw meal, the need to lower CO 2 emissions and the introduction of alternative fuels has broadened th...
Setting a new benchmark
As ever-higher efficiencies are demanded of grinding equipment, cement plants require a new benchmark for grinding component performance. Addressing wear through regular maintenance and repair is one strategy with th...
Finding the missing link
In 2015 Çimsa Çimento’s Mersin plant, Turkey, suffered an increasing number of cyclone blockages, causing severe interruptions to the facility’s grey cement Line 1. After unsuccessful attempts to find the reason for...
Crystal clusters in clinker
With increasing use of alternative fuels, short homogenisation times in precalciner kiln systems and the requirement for high alite cement, the presence of crystal clusters is not expected to be a thing of the past....
West African grinding goals
The construction of three Cim Metal cement grinding plants in Burkina Faso and Côte d’Ivoire is expected to significantly improve cement supply to this area of west Africa. A key part in the building and commissioni...
Roller press celebrates 40 years
Since its invention 40 years ago, the roller press has continuously improved and expanded its use in the cement and mineral-processing industries. KHD tracks the changes since the technology’s introduction and celebr...
Smart maintenance planning
What if your machinery could tell you when it needs attention? The latest-generation rotor weighfeeders Pfister® DRW do just that. To ensure optimum runtime of the weighfeeders as well as perfect dosing, FLSmidth Pfi...
Reduced costs, enhanced safety
Sustained economic success cannot be based on efficiency alone. Health and safety also have to be prioritised in bulk storage systems. The fully-automated polysius® storage system installed by thyssenkrupp Industria...
Raw material microscopy
Microscopical methods are key tools in the assessment of potential raw materials to be used in the production of high-quality cement. This month ICR considers the use of optical microscopy in the determination of the...