Cement News tagged under: manufacturing technology
Moving the goal posts07 July 2014, Published under Cement NewsAlthough the cement industry increasingly uses alternative fuels such as refuse-derived fuel (RDF), biomass and sewage, the high water content of these fuels places a ceiling on their maximum share in a cement plant’s fuel mix. However, economical drying technology can extend the contribution of such fuels and move the goal posts in alternative fuel use. By Tema Process BV, The Netherlands. Fluid bed dryers can help reduce the moisture content of RDF enabling a wider use of such fuels... |
Mineral resources & reserves24 June 2014, Published under Cement NewsIn general, mineral resources that have a strong geological continuity such as limestone for cement manufacturing require less exploration work than deposits in the metallic and non-metallic mineral industries (MNMI). World-class cement producers and mineral processing companies estimate and classify their mineral resources and reserves with varying degrees of effort and cost. But it is clear that cement producers are lagging well behind the current standards set by the MNMI in this respect.... |
Problems with cement17 June 2014, Published under Cement NewsThere are many causes for complaints about cement quality from customers, some more justified than others. A brief review of some common perceived issues indicates that a deeper look at the potential causes for problems may help reduce the incidence of complaints. Problems with concrete cracking Over a six-month period the complaints from customers of a single cement plant were categorised and 69 per cent of the complaints were found to relate to service matters, typically late ... |
Going under cover09 June 2014, Published under Cement NewsMetal dome technology has ’covered’ an entire world of clinker, cement and raw materials facilities. During the handling of large volumes of dry bulk materials, cement companies are increasingly looking for ways to contain dust and other emissions that are both economical and environmentally-responsible. Until recently these two key benchmarks often appeared diametrically opposed, but advanced storage technology has succesfully enabled cement producers to meet these requirements. By Melanie ... |
Specifying raw materials28 May 2014, Published under Cement NewsAiming for a tighter raw material specification may not necessarily be the best option for a cement plant looking to improve the economics or quality of its final product. Drawing up such a specification is a balancing act where changes in one raw material can lead to further changes to other parts of the raw mix. Designing the right raw material specification offers valuable opportunities to the cement works At most cement plants where the author has had some responsibility for... |
Home clean and dry12 May 2014, Published under Cement NewsCement by its very nature requires safe, waterproof and dust-free storage solutions. Modern bagging techniques offer all three. Ahead of processing and packaging trade fair interpack 2014 – to be held in Düsseldorf, Germany, over 8-14 May – ICR takes a look at the latest technologies on offer. The Arodo Arovac vacuum bagging system produces fully de-aerated plastic packs without any perforations, which allows each individual pack to be stored or placed in the most arduous of wea... |
Siemens targets energy use30 April 2014, Published under Cement NewsDieter Schletterer, Siemens vice president of Cement-Minerals, gave up his time to the press to describe some of the latest technology that Siemens offers to clients in the cement industry. His comments reflect on how the cement sector’s challenges help to shape the technologies of the future and how local partnerships are having a big role to play in introducing global solutions to regional cement markets. Siemens supplied, engineered and installed the complete electrical infrastruct... |
To Russia with love24 April 2014, Published under Cement NewsRussian cement producers are increasingly regarding road mobile ship unloaders as a more flexible option to get their product to market. Van Aalst Bulk Handling BV successfully delivered and commissioned its latest ship unloader to one of the country’s cement importers, ODK. By Van Aalst Bulk Handling BV, The Netherlands. Road mobile ship unloaders offer a flexible way of delivering cement to several harbours Road mobile ship unloaders were extremely popular in the 1980s, partic... |
Less friction, less power use22 April 2014, Published under Cement NewsAs cement producers look to find additional ways of cutting energy costs, different parts of the cement production process are assessed to yield further savings. One such area is equipment lubrication where a comprehensive management programme can not only lead to improved mechanical maintenance but also energy savings. By KB Mathur, Global Technical Services (GTS), India. GTS explains how good lubrication management can help keep equipment running at peak performance and reduce... |
New clinkers11 March 2014, Published under Cement NewsThe push to reduce CO 2 emissions will impact the way that cement plants are designed and operated in the future. This third article in a series of five explores some of the potential outcomes of the carbon-constrained world and their impacts on the cement industry. By John Kline & Charles Kline, Kline Consulting, USA. Figure 1: polished section of a clinker granule seen under optical microscopy. Alite (C3S) blue crystals, belite (C2S) brown crystals It is widely accepted th... |