International Cement Review articles tagged under : Manufacturing Technology

06 November 2019

Boosting AF rates with flame thermography

Over the past 30 years the cement industry has witnessed an increasing use of alternative fuels (AF), but the amount that can be fired in the main burner is limited by different process factors. To optimise AF firing in the main burner, VDZ has conducted several research projects with the aid of flame thermography. The know-how gained has been used to support producers seeking higher AF substi...

25 October 2019

China steps into the lime light

As the urbanisation rate in China increases and the government legislates for a more sustainable society, the use of lime is set to expand. This is expected to lead to the modernisation and consolidation of the count...

03 October 2019

Novel no-cement refractories

For the areas in cement plants impacted by high wear or corrosion, refractory specialists have developed new no-cement refractory materials based on electrochemical bonding. A 25 per cent silicon carbide material has...

13 August 2019

Efficient grinding meets reduced CO2 emissions

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 cons...

External circulation technology for VRM raw meal grinding 04 July 2019

External circulation technology for VRM raw meal grinding

The pressure differential of a traditional vertical roller mill (VRM) system for raw meal grinding is high, with the fan accounting for about 45 per cent of power consumption. Sinoma International Engineering has dev...

27 June 2019

Countdown for Bardon

As part of LafargeHolcim’s Capital Markets Day in 2018, guests enjoyed a site visit to Europe’s largest aggregates quarry at Bardon Hill, east of Coalville, Leicestershire, UK. Owned by LafargeHolcim subsidiary Aggre...

The digital quarry 10 June 2019

The digital quarry

Quarries often give the impression that they have been forgotten in capital investment projects, having bypassed technological changes for several years. However, the quarry is where production starts and here, moder...

06 June 2019 Dr Michael Clark

Processing depth for AFs

In his paper ‘A new approach to burning alternative fuels’, delivered at the Cemtech Europe 2018 conference in Istanbul, Turkey, Oral Turesay of KHD Humboldt Wedag introduced the concept of ‘processing depth’. His th...

15 May 2019 Arthur Harrisson

Portland cement, lime and alkali-activated binders

Following on from last month’s discussion regarding the production of alternatives to Portland cement clinker, Arthur Harrisson takes a closer look at alkali-activated binders. Fly ash needs to be activated to...

29 April 2019

A cooler for the future

To reduce frequent clinker cooler downtime and high clinker temperatures a US cement plant required a new cooler to be installed. As an additional benefit future upgrades would also be easier to carry out. By IKN, Ge...

24 April 2019

Digital twins

Established for some time in industries such as automotive, logistics and even healthcare, digital twins are becoming more widespread. For the cement industry digital twins can also provide benefits as they enable ac...

11 April 2019 Arthur Harrisson

Belite appearance in clinkers

This month Arthur Harrisson looks at the second-most abundant constituent of cement – belite – and its appearance in clinkers. Figure 1: Type I belite with multiple sets of parallel laminations. The blue cryst...

03 April 2019

Modular miracles

Cement producers looking for fast entry into growing small- and medium-sized markets are increasingly looking at employing the light-asset approach. Modular and mobile grinding systems can provide a versatile and cos...

11 March 2019 Arthur Harrisson

Alternative clinkers

The drive to lower the carbon footprint of cement has led to the development of alternative cement clinkers to replace Portland cement clinker. Arthur Harrisson examines the potential of carbon reduction in four alte...

28 February 2019

Admixtures and sustainability

With reducing the environmental impact of cement manufacture high on the agenda for producers, sustainable cement additives based on renewable materials can contribute towards reducing a plant’s carbon footprint and ...

01 March 2019

FCB Horomill® turns 25

This year marks the 25th anniversary of the FCB Horomill ® , a breakthrough technology for raw meal, cement, slag and minerals grinding. Having actively participated in the development of the mill, Buzzi Unicem refle...