Cement News tagged under: preheater

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GCC Rapid City prepares for the future

10 May 2019, Published under Cement News

GCC has completed a significant upgrade of its cement plant in Rapid City, South Dakota, USA. The project increased the capacity of Kiln 6 by 0.44Mta to help satisfy regional demand growth and solidify the company’s market position, while meeting existing and future sustainability initiatives. By Steven J Post, GCC, USA. To lift production and reduce emissions, GCC expanded its Rapid City plant, South Dakota, USA GCC was founded in 1941 in Chihuahua, Mexico. It is a vertically-i...

Co-processing MSW at Hongshuihe Cement Co

22 March 2017, Published under Cement News

In its first application in China, an FLSmidth HDR63-315 HOTDISC ® combustion device is integrated in the 3800tpd calciner kiln of Hongshuihe Cement to handle municipal solid waste (MSW) with a high moisture content and low calorific value. By Zhou Lun, FLSmidth Beijing Ltd, China. Figure 1: the FLSmidth HOTDISC combustion device To safely and completely dispose of virtually unclassified municipal solid waste (MSW), China Resources Cement subsidiary Hongshuihe Cement Co Ltd bui...

Beyond Bernoulli

19 October 2015, Published under Cement News

Dr Clark considers the flow of gases through the cement kiln process and some of the governing principles and complexities. Preheater exhaust gas flows are an important source of recoverable energy A recurring theme of the Technical Forum has been the fundamental mass balance of a cement kiln and the mass flows into, through and away from the cement kiln system. The subject of this month’s article are the mass flows in the exhaust gases and particularly the preheater exhaust....

Boosting Bolivian output

02 September 2014, Published under Cement News

With Bolivia’s cement market growing by double digits in recent years, cement producers have invested in extending their production capacities. One such company is Coboce which has added a second production line to its Irpa Irpa cement works in Cochabamba, Bolivia, reflecting the cement maker’s continued drive for growth. By Javier Ramallo Rocha, Coboce, Bolivia. Coboce increases output at its Irpa Irpa cement plant in Bolivia with the installation of a 1.6Mta line and increased mi...

Lower NOx & CO design

22 May 2013, Published under Cement News

Preheater and precalciner design play a prominent role in NOx and CO reduction from cement kilns. In this article, Cinar focusses on calciners and their impact on NOx and CO reduction efforts in the cement plant, offering cyclone combustion chamber and air-through calciners as models. By Dr Michail P Akritopoulos & Dr Tahir Abbas, Cinar Ltd, UK. Figure 1: Plant A: (a) oxygen contours in the CCC calciner and (b) contours of NO in the CCC. They show net NO generation without reductio...