Cement News tagged under: Grinding Technology

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Boosting mill performance

02 February 2021, Published under Cement News

Reducing the clinker factor without compromising quality and the rising demand for high-performance cements are great challenges for the fine grinding technology used in cement plants. As part of its green cement plant project, thyssenkrupp has expanded its product range with the polysius® booster mill. While one cement producer has already integrated the mill into an existing grinding circuit, several others have tested the mill since August 2020 and are checking results in terms of specifi...

Determining the cost

24 November 2020, Published under Cement News

In this month’s Technical Forum, Dr Michael Clark considers how to reduce electricity costs by looking at how much is consumed and ways to lower the price of energy. While this is less of an issue in countries with low electricity costs, the lack of incentive to reduce costs could be a different kind of problem. Figure 1: the electricity cost of cement grinding The cost of something is a function of the price paid and the amount purchased or consumed. It is obvious, but there ar...

Supplying Cimco’s new plant

26 October 2020, Published under Cement News

Earlier this year, Intercem and CimMetal Group signed an agreement for their fourth collaboration in west Africa, this time for a new 2.5Mta cement grinding plant in Togo. Under the name of Cimco SA, the new facility will be strategically situated at the port of Lomé and become the country’s largest grinding plant by capacity. By Intercem Group, Germany. General layout of Intercem’s 2.5Mta cement grinding plant for Cimco SA (CimMetal Group) in Lóme, Togo, with a VRM, raw material s...

Energy saving with separate fine grinding

13 October 2020, Published under Cement News

Separate grinding and subsequent blending is a commonly used practice in the cement industry, enabling the lowering of the specific electric energy demand by using highly efficient comminution techniques. While ball mills are not the most energy-efficient mills, VDZ’s research has shown that in some cases ultrafine grinding by means of a stirred media mill combines the advantages of a ball mill with low overall specific energy demand. By J Knappert, S Seemann and PM Fleiger, VDZ, Germany. ...

VRM to Crown operations

18 August 2020, Published under Cement News

When Crown Cement identified the need to increase the cement capacity of its plant in Bangladesh it opted for vertical roller mill (VRM) technology from Loesche. With a range of VRM benefits, total grinding capacity has increased to 11,000tpd and has offered more product versality with local operating conditions in mind. By Masud Khan, Crown Cement Group, Bangladesh. Crown Cement saw several rounds of capacity upgrades with the latest such project starting in 2017 Vertical rolle...

Gaining ground in Gabon

28 January 2020, Published under Cement News

As Gabon restructures its economy, local cement producers seek to consolidate their position in the domestic market. CIMAF Gabon is investing significantly to increase its presence through the expansion of its existing grinding plant in Owendo and the construction of a new clinker unit. By Salim Kaddouri, CIMAF, Gabon. CIMAF’s grinding plant near Libreville, Gabon, is undergoing a US$15.1m expansion project With a population of around 1.8m people, Gabon’s cement market is modest...

A new line for FANCESA

21 August 2019, Published under Cement News

Bolivian cement producer FANCESA is expanding its cement capacity with a new line at its Cal Orck’o site. With the new project, the company plans to consolidate its domestic leadership position as well as improve operational efficiency of the plant near Sucre. Fancesa is currently expanding its cement plant at Cal Orck’o, Sucre, Bolivia Bolivian cement producer FANCESA operates a cement plant with a clinker capacity of 2800tpd at Cal Orck’o, near Sucre. The company is currently ...

Reviving a 60s modern marvel

14 August 2019, Published under Cement News

Built in the early 1960s, the Lafarge cement plant in Ravena, New York, USA, has seen many changes. As part of a three-year modernisation project, the facility improved its grinding section with the help of Gebr Pfeiffer Inc. The project resulted in higher output as well as a more efficient and environmentally-friendly grinding process. By Chris Oesch, Gebr Pfeiffer Inc, USA. Gebr Pfeiffer installed an MVR 6000 R-6 vertical roller mill as part of the modernisation project at Laf...

Efficient grinding meets reduced CO2 emissions

12 August 2019, Published under Cement News

While cement plants have made sound progress in terms of reducing CO 2 emissions from fuel consumption, progress relating to such emissions from electricity consumption has been slower. VDZ looks at a key power consumer in the modern cement plant: the grinding section. By Jonas Knappert, Kevin Treiber and Stefan Seemann, VDZ, Germany. Figure 1: electrical energy consumption of the cement manufacturing processes 1 Cement production is energy intensive in terms of fuel and elect...

Shivam’s grinding goals

16 July 2019, Published under Cement News

To ensure the efficient production of cement to international standards and remain one of Nepal’s top cement companies, Shivam Cement decided to upgrade the grinding section of its cement plant in Hetauda. KHD Humboldt Wedag India improved the performance of the existing grinding circuit by adding a roller press as well as static and dynamic separators. By Nawal Kishore Chaudhary, Shivam Cement, Nepal, and Ashok Kumar Dembla, Deepti Varshney, Prakash Pratil, KHD Humboldt Wedag India Pvt Ltd,...