Displaying items by tag: Grinding

Sri Lanka: Switzerland-based SpectraFlow Analytics has received an order for a SpectraFlow Airslide analyser and raw mix proportioning software from Siam City Cement (Lanka). The equipment will analyse the composition of material exiting the raw materials mill at Siam City Cement (Lanka)’s Puttalam cement plant. The supplier says that this will help to increase kiln feed quality, lowering the chances of refractory problems and other causes of kiln stoppages.

SpectraFlow Analytics said “The ever increasing demand in cost savings and at the same time improving product quality led Siam City Cement (Lanka) to invest in the most advanced raw mill optimisation package available on the market.”

India: Dalmia Bharat has announced a planned investment of US$10.9m in a grinding unit expansion at its 1Mt/yr Banjari cement plant in Bihar. The expansion will raise the plant’s capacity by 500,000t/yr and conclude before 31 March 2025.

UK: The Cement 2 Zero project has successfully concluded its first trial melt of recovered cement paste in an electric arc furnace at the Materials Processing Institute’s Teesside campus. The project uses the paste as flux for electric steel recycling. Cambridge Electric Cement (CEC) has demonstrated that the ‘slag’ from this process can be ground into fine clinker that, when mixed with gypsum and supplementary cementitious materials (SCMs), produces net zero CO₂ cement. The Cement 2 Zero project to produce CEC’s cement at an industrial scale launched in March 2023, with US$7.85m in funding from UK Research and Innovation. Tarmac will grind the clinker from the project’s trial melts for testing in order to obtain certification and specification as a usable cement product.

Australia: Construction company SIMPEC, a subsidiary of WestStar, has won a new US$68m contract to work on the on-going expansion of Cockburn Cement’s Kwinana grinding plant. The work involves the construction of two 100t/hr grinding units, a 110,000t raw materials store and a reclamation system. Business News has reported that the total value of the Kwinana grinding plant expansion is US$249 - 272m. Cockburn Cement has committed total investments of US$129m to the project, of which US$7.44m consists of an existing contract with SIMPEC.

SIMPEC managing director Mark Dimasi said "This new contract demonstrates the company's track record of delivering for its clients. We are very pleased to secure this work and are committed to maintaining a long-standing relationship with Cockburn Cement and Adbri. I would like to thank Cockburn Cement for this opportunity to deliver such a high-profile local project and would also like to thank our team for their commitment in helping secure this contract.”

Mark Irwin, CEO of Cockburn Cement’s parent company Adbri said "The balance of work for the agreed scope remains consistent with Adbri's previously announced cost estimate and project schedule for the Kwinana Upgrade Project."

US: Heidelberg Materials North America and Levy Group of Companies signed a granulated blast furnace slag (GBFS) supply contract on 9 August 2023. Under the contract, Levy Group of Companies will supply Heidelberg Materials North America with 400,000t/yr of GBFS for use in its slag cement production. Deliveries will begin in early 2024. Heidelberg Materials North America says that it has upgraded its Speed cement plant in Indiana to increase the efficiency with which it grinds GBFS. Following the inauguration of its nearby 2.4Mt/yr Mitchell cement plant in June 2023, Heidelberg Materials North America plans to transition the 1Mt/yr to 100% speciality and slag cement production. Levy Group of Companies will supply the GBFS from steel industry sites in the Midwest Region.

Heidelberg Materials Midwest US president Axel Conrads said “Our agreement with the Levy Group of Companies to secure a consistent supply of slag granules will help us accelerate the transition of the Speed plant to slag cement production and better meet the increasing demand for more sustainable cement products in the growing Midwest market.”

Kyrgyzstan: Kant Cement has successfully transitioned Grinding Unit 8 of its Kant cement plant to closed cycle grinding operations. Business World News has reported that China-based CNBM Beijing Triumph carried out the work. The transition has increased the unit's production capacity by 30 - 40%.

Kant Cement's general director Pavel Dekhtyarev said "The mill previously produced 40t/hr of CEM II cement and 30t/hr of CEM I cement. Now it produces 58t/hr and 50t/hr, respectively. With this productivity, it was possible to reduce the specific energy consumption by 30% and reduce dust emissions. In addition, closed circuit grinding allows us to produce high grades of cement that could not be obtained with open circuit grinding systems."

India: Shiva Cement says that a proposed 1Mt/yr grinding unit as part of its new Sundergarh plant is on hold while it evaluates the site location. The cement producer confirmed that the 1.36Mt/yr clinker unit at the site in Odisha has been commissioned as well as a 9MW waste heat recovery (WHR) unit. It added that it has already obtained clearance to operate (CTO) from the State Pollution Control Board (SPCB) for 0.66Mt/yr of clinker production and 9MW WHR at the site. It is currently awaiting clearance for the remaining clinker production capacity. Work on alternative fuel systems, a 12km rail siding and a 10km overland belt conveyor at the site are reportedly progressing on schedule.

Bangladesh: The Bangladesh Cement Manufacturers Association (BCMA) has called for a 60% cut to duties on clinker imports, to US$1.84/t from US$4.61/t. The Financial Express newspaper has reported that BCMA members are struggling with high shipping costs and supply issues due to Russia’s war in Ukraine.

The Bangladesh government published plans to raise the duty on imports of clinker by 40% to US$6.46/t in its 2023 budget on 13 June 2023.

India: Star Cement plans to implement a capacity expansion drive in order to raise its total grinding capacity by 70% to 9.7Mt/yr from 5.7Mt/yr. Dow Jones Institutional News has reported that the producer expects to capitalise on projected growth in cement demand in East and Northeast India.

Italy: Holcim announced its acquisition of Nicem, Italy's ground calcium carbonate market leader. The group said that it plans to use Nicem's ground calcium carbonate as raw material in production of its ECOPact and ECOPlanet reduced-CO₂ cement and concrete range.

Holcim's Europe regional head Miljan Gutovic said “Nicem complements our existing operations perfectly and allows us to further leverage our expertise in green formulation, opening a new source of alternative materials to decarbonise our ready-mix concrete. I look forward to welcoming the employees of Nicem to the Holcim family, whose valuable expertise will help us accelerate green growth.”