Cement News tagged under: dust

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Selecting the right SCR system

29 June 2020, Published under Cement News

Heavy dust loads and high temperatures are two of the most-challenging factors for DeNO x systems in the cement industry. In this article thyssenkrupp Industrial Solutions with its CemCat brand for SCR systems, explains the success story of its specialised high-dust SCR system to reduce operating costs and the risk of kiln stoppage. By thyssenkrupp Industrial Solutions (China) Co Ltd, China. Figure 1: for more than 14 years, CemCat has built high-dust SCR plants worldwide to help ...

Vietnamese authorities enforce environmental control

18 July 2018, Published under Cement News

Authorities in Quang Ngai province, Vietnam, have threatened to shut down a plant in Binh Dong Commune if its management does not improve air quality and dust emissions, according to Viet Nam News. The 0.5Mta facility began operations in 2012 and received upgrades in 2015 but is still reportedly affecting local villagers. The provincial chairman, Tran Ngoc Cang, said the province wanted to relocate 427 households living near the plant, but needed VND989bn (US$44m) for the plans. The provinc...

Fabric filtration comes of age

31 July 2017, Published under Cement News

Fabric filtration is increasingly seen as the best-available technology to help producers meet their goals, and with good reason. FLSmidth has introduced two important innovations in this area. Firstly, extra-long filter bags prevent the formation of a filter cake on the outside of the bags. Secondly, a side inlet for gas and dust extends the bag’s life time and reduces the need for maintenance, process control and troubleshooting. By Henrik Vittrup Pedersen and Pietro Aresta, FLSmidth Airte...

Balancing dusts in the kiln

08 April 2015, Published under Cement News

Chemically the expectation for a cement clinker is that it will have the same overall chemical composition as the raw materials from which it is made, less any gaseous emissions and plus any ash provided by the fuels. However, much happens between the raw materials entering the raw mill and the emergence of the clinker. Figure 1: typical LSF of materials through a kiln Much of the variation in the bulk chemistry of the material passing through the system is related to the creati...

Cyclic processes

10 July 2013, Published under Cement News

The Technical Forum has covered the topic of the cyclic processes taking place in a cement kiln on a number of occasions over the last 15 years. Regular readers may think that there is not much more to be said on the subject. However, these processes remain one of the most frequent sources of questions and, therefore, it is perhaps time to revisit this topic. In one of the many cycles operating in a cement plant, alkali salts evaporate in the burning zone and are carried back to th...