Cement News tagged under: clinker

RSS feed

Red rivers of segregation

09 March 2016, Published under Cement News

This month’s Technical Forum ponders the tendency of particulate solids to segregate at various stages of the cement manufacturing process with critical implications, especially in the clinker cooler. Red rivers are caused by particle segregation in the cement production process and can cause premature equipment failure As this month’s Technical Forum focusses on the phenomenon of segregation in the cement manufacturing process, let’s start with a definition of segregation. ...

Clinker cooling

16 March 2015, Published under Cement News

Descriptions of the formation of cement clinker generally concentrate on those reactions that take place as the kiln feed heats up and passes through the process to the burning zone. The part of the operation after the burning zone and up until the clinker’s eventual delivery to the cement mill can also have a significant effect on the quality of cement produced. Figure 1: zoned C3S crystal with C2S inclusions in a finely divided groundmass. (Field of view is 90µm) In a precalci...

HeidelbergCement inaugurates Scantogo clinker plant, Togo

12 March 2015, Published under Cement News

HeidelbergCement inaugurated the 1.5Mta new greenfield Scantogo clinker plant in Togo on 6 March 2015. The new US$250m plant is located at Tabligbo, some 80km north east of the capital city Lomé. More than 2000 guests attended the ceremony, among them the president of the Republic of Togo, the president of the National Assembly and the German ambassador in Togo. With the Scantogo investment, HeidelbergCement has become the largest German foreign investor in Togo. The new US$250m gre...

Iran halts clinker production for 30 days

20 January 2015, Published under Cement News

Iran has halted the production of clinker for 30 days, effective 14 January 2015. Abdolreza Sheykhan, an official with Iran's Cement Producers Association, said that the country currently has 17Mt of clinker in store, Iran’s Fars News Agency reported last week. “We have stopped producing clinker in order to turn the current amount to cement,” Mr Sheykhan said.

Pakistan: Port Qasim PIBTL starts civil works

28 November 2014, Published under Cement News

Civil works have started on the bulk cement handling project at Port Qasim of Pakistan International Bulk Terminal Ltd (PIBTL). Earlier this year, PIBTL awarded the PKR12.5bn EPC contract to China Harbour Engineering Co Ltd (CHE). The technical specifications relating to the plant and the equipment were finalised and PIBTL has appointed a German consultant to procure the equipment, which is expected to be finalised in the coming year. PIBTL will be the country's first terminal to hand...

Mozambique: Cimentos da Beira awards Ambrian subsidiary purchasing contract

19 November 2014, Published under Cement News

Ambrian PLC said Monday that its wholly-owned subsidiary Ambrian (Singapore) Pte Ltd has entered into an agency agreement with Cimentos da Beira Ltda. Under the agreement the company is to be exclusively appointed as Cimentos da Beira's worldwide purchasing agent or supplier of raw materials for producing cement products at its grinding and cement packing operations in Beira, Mozambique, for eight years. The Beira plant is expected to commence operations at the beginning of 2015, and o...

Reducing LSF

13 October 2014, Published under Cement News

Just over a year ago an article in ICR discussed the possibilities for reducing CO 2 emissions from a cement plant. 1 One option was to use less limestone in the kiln feed, thus reducing the CO 2 released by calcination (both by dissociation of CaCO 3 and because most fuel is used in calcination) and making the kiln feed easier to burn in the burning zone (which therefore requires less fuel). But what are the quality implications of such a reduction and how might they be overcome? ...

Savannah Cement plans clinker line, Kenya

06 August 2014, Published under Cement News

Kenya-based Savannah Cement plans to establish a clinker line at an investment cost of around KES17bn (US$193.3m). The cement producer currently imports clinker for its plant based in Athi River, Standard Digital News (Kenya) reported. While plans for the new clinker line are still at an early stage, the Savannah Cement expects completion of the facility by the end of 2017. Ronald Ndegwa, Savannah Cement’s managing director, told reporters that the company is currently scouting four di...

Who controls cement trade?

09 July 2014, Published under Cement News

Global seaborne cement and clinker trade is controlled by the owners of the exporting and distributing cement plants, and (even more so) by the owners of the receiving bulk cement terminals and grinding facilities. Following the recent publication of The ICR Handbook on Global Cement Trade and Distribution , the authors provide key statistics and an insight into ownership and market control with a more detailed focus on the upcoming LafargeHolcim merger. By Ad Ligthart and Marcia Ligthart, ...

Vessel with clinker imports sinks in Bangladesh

13 June 2014, Published under Cement News

A light local vessel, MV Brishti, laden with 9500t of clinker imports capsized in the Bay of Bengal near Patenga beach in Chittagong, Bangladesh following a collision with the sunken ship MV Rita on 12 June. The clinker was imported by local cement company Diamond Cement for use in its production plant and was heading to Diamond's private jetty on the Karnaphuli river after unloading from the bulk carrier, Xing Peng Da at outer anchorage. Due to the port congestion at Chittagong or in cas...