Displaying items by tag: Kiln
KIMA Process Control to supply kiln cooling system for Cementa's Slite cement plant
17 November 2022Sweden: Germany-based KIMA Process Control has secured a contract for the supply of a kiln shell cooling system for Cementa's Slite cement plant in Gotland. 88 water jets will deliver centimetre-precision cooling for the 55m-long kiln, while IR pyrometers measure temperatures over areas of 10cm2. According to KIMA Process Control, the equipment can avoid unnecessary cooling of the kiln shell, conserving the heat energy supplied by the main burner.
The new cooling system will eliminate the use of energy intensive electric fans, slashing 1700t/yr in CO2 emissions, according to the supplier. It said that noise emissions will also 'drastically' decline as a result of the upgrade. The system's operating costs are reportedly 98% less than those of the plant's existing fan system.
The supplier said that the new equipment will 'bring the cement plant in Slite an economic benefit in the shortest possible time.' It said "For the cement industry, this project represents a new milestone in terms of best available technology in the operation of rotary kilns."
Yamama Cement commissions new cement plant
27 October 2022Saudi Arabia: Yamama Cement has commissioned its second cement plant, with 20,000t/day in capacity across two clinker lines. The producer invested US$1.25bn in the plant's construction, which was carried out by Germany-based ThyssenKrupp. The facility is equipped with seven raw materials crushers, a 3.7km-long limestone conveyor belt, 110,000t of storage capacity, four Quadropol roller mills, two Dopol preheater towers, two Polro rotary kilns, two Polytrack clinker coolers, three 100,000t clinker silos, four Polycom high-pressure roller mills, six 22,590t and 25,000t cement silos and 22,000m³
in water storage basins. The new plant is situated in the eastern Arabian Desert, 80km from Riyadh.
Yamama Cement also operates the 6.4Mt/yr Al Karj Cement plant, 70km from Riyadh.
Askari Cement ignites Nizampur cement plant's new kiln
21 October 2022Pakistan: Askari Cement has ignited the newly installed 6500t/day kiln at its Nizampur cement plant in Khyber Pakhtunkhwa province. The kiln increases the plant's capacity by 73% to 4.85Mt/yr. The project, along with parent company Fauji Cement's construction of a new 2.05Mt/yr integrated cement plant in Dera Ghazi Khan, cost US$339m. Fauji Cement took a US$212m loan to support the works in January 2022. The group expects both projects to raise its capacity by 56% to 10.5Mt/yr and to increase its market share to 13%.
Fauji Cement's upcoming Dera Ghazi Khan cement plant is scheduled for commissioning in mid-late 2024.
East African Portland Cement restarts repaired kiln at Athi River plant
23 September 2022Kenya: East African Portland Cement Company has resumed production at its 0.6Mt/yr Athi River cement plant. The producer successfully replaced the shell of the plant’s kiln. Managing director Oliver Kirubai said that the upgrade will enable the plant to increase its cement production by 50%, and reduce the price of its Blue Triangle brand cement.
Kenya: East Africa Portland Cement began work to replace a 16.5m-length of kiln shell at its Athi River cement plant at the end of July 2022. The producer says that the project will increase the kiln line’s capacity by 1400t/day.
Managing director Oliver Kirubai said "Due to the high costs of energy and an old clinker line, the board has prioritised efficiency and reliability of our integrated plant operations to drive cost optimisation.”
National Cement Company of Alabama’s Ragland cement plant upgrade to reduce CO2 emissions by 40%
25 July 2022US: National Cement Company of Alabama has reported that the new kiln line at its Ragland cement plant will reduce the plant’s CO2 emissions by 40%. Its energy consumption will also fall by 30% as a result of the upgrade. The new line includes a 78m-high homogenisation silo, vertical crusher, five-stage preheater and automated clay storage system. AF used in the kiln will include waste tyres, woodchip and sawdust. The new kiln will help in the Ragland cement plant’s transition to 100% Portland limestone cement (PLC) production by 2023, further diminishing its carbon footprint.
Vicat CEO Guy Sidos said "Our ambition is to use AF in all our cement plants around the world. In addition to eliminating fossil fuel energy and replacing it with recycled regional waste, our investments contribute directly to local development. We are proud of the modernisation and transformation of our Ragland site, which was our very first acquisition outside France in 1974."
US: Vicat subsidiary National Cement Company of Alabama inaugurated its new US$300m production line at its Ragland cement plant on 21 July 2022. Local press has reported that the line includes a new rotary kiln, equipped for alternative fuel (AF) use.
President Spencer Weitman said “This puts us into the next 40 or 50 years. And it’s prolonged the life of the plant to move us forward into the next century hopefully.”
Tarmac’s Tunstead lime kiln uses hydrogen fuel
01 July 2022UK: Tarmac has successfully produced lime at its Tunstead, Derbyshire, plant using net zero hydrogen to fuel its kiln. The achievement was the culmination of a series of trials substituting various proportions of hydrogen for natural gas.
Tarmac’s lime director Graham Cooper said “Lime has been manufactured in the Peak District for centuries and this forward-thinking project aims to ensure the future of this nationally significant industry as the UK transitions to net zero.”
India: Gujarat Sidhee Cement has stopped its kiln for a temporary period of 15 – 20 days due to high clinker inventory levels. Cement grinding and despatch will continue unabated. The cement producer operates an integrated plant at Sidheegram in Gujarat.
Kant Cement installs lining on kiln
17 June 2022Kyrgyzstan: United Cement Group (UCG) subsidiary Kant Cement has begun installation of a lining on its Kant cement plant’s rotary kiln in order to reduce losses and improve the efficiency of the plant. The producer expects the lining to raise its kiln’s temperatures by 100°C. It consists of wear-resistent RMAG–H2 bricks and HALBOR–400 refractory bricks.
UCG said “Energy efficiency and energy saving are among the most important factors for the successful implementation of ongoing economic and social reforms.”