Displaying items by tag: Mill

Pakistan: Kohat Cement has started commercial operation of a 105t/hr cement mill at its plant. The cement producer operates a single integrated plant at Kohat-Rawalpindi. It is also upgrading the site with a new 7800t/day production line.

UK: Spain’s Cemengal is supplying a 0.5Mt/yr Plug & Grind Vertical mill to Tarmac’s Dunbar cement plant. Work started in April 2018 and the project is expected to be completed by July 2019. The unit follows the Plug & Grind product line’s modular format and it includes a FLSmidth OK Mill 37.3. The mill will be used to grind clinker at the cement plant although the subsidiary of CRH may also use the mill to grind slag. The order is Cemengal’s first Plug & Grind Vertical in Europe.

Nigeria: Germany’s Gebr. Pfeiffer has struck a deal to sell a MVR 6000 R-4 mill for raw material grinding and a MPS 3350 BK mill for processing coal for kiln firing for Dangote Cement’s new plant at Okpella in Edo State. The mill order is the first for Gebr. Pfeiffer from the Nigerian cement producer. The order was placed by the China’s Sinoma International Engineering.

The MVR mill featuring a total drive power of 4000kW will be grinding 550t/hr of cement raw material to a fineness of 10% R 90µm. The MPS 3350 BK with a drive power of 1100kW is designed for a throughput rate of 50 - 70t/hr and will grind Nigerian coal, imported coal and/or pet coke, to a fineness of 12% R 90µm. Gebr. Pfeiffer’s own staff will supervise erection and commissioning.

Nigeria: Dangote Cement will use two vertical roller mills (VRM) from Germany’s Loesche for a new production line at its Obajana plant in Kogi State. The order comprises a six-roller mill for raw cement meal with a capacity of 580t/hr, the largest roller mill for raw material in the Loesche range, and a three-roller mill with a modular design featuring a drive power range of 1000kW for grinding hard coal and lignite with a throughput of up to 70t/hr.

The scope of delivery also includes a LDC classifier for the raw cement mill and a LSKS ZD classifier for the coal mill, which is characterised by individually adjustable grain size separation. The raw material mill is equipped with metal-matrix-compound (MMX) technology. The two mill gear units are equipped with state monitoring and remote access for remote monitoring. Loesche is also contributing to the design and planning of the entire plant as well as the engineering for the electrical measurement, control and regulation technology and complete automation. The delivery date is scheduled for the third quarter of 2018.

The contract partner for this project is China’s Sinoma International Engineering, which has previously installed a seven clinker and cement raw meal VRMs for the Obajana plant. The site has a cement production capacity of over 12Mt/yr and it is the largest cement plant in Sub-Saharan Africa.

India: Wonder Cement has ordered two vertical mills from Germany’s Gebr. Pfeiffer for its Nardana plant in Rajasthan. The order includes a MVR 6000 C-6 mill for grinding slag cement and a MPS 3070 BK mill for grinding fuel. Delivery is scheduled for early 2019 and mid-2019 respectively.

The MVR mill will feature a total drive power of 5820kW. Mixed cements will be be ground to a fineness of up to 5% R 45µm. The grinding plant will be designed to process granulated blast-furnace slag with a target fineness of approximately 4500 cm²/g Blaine and blast-furnace cements with different proportions of granulated blast-furnace slag, fly ash and gypsum and different product fineness degree. Wonder Cement has requested the option to grind relatively hot clinker in the mill while at the same time being able to reduce the cement temperature, and alternatively to use cold clinker from stockpiles.

The core components such as the tension system and the grinding rollers will come from Gebr. Pfeiffer in Germany. The grinding bowl and the gearboxes for the mill and classifier will also be delivered from Europe. Gebr. Pfeiffer’s subsidiary, Gebr. Pfeiffer India, will provide the housing parts, the foundation parts and supports of the rollers as well as almost the entire high-efficiency classifier type SLS 5600 BC. Gebr. Pfeiffer India scope of supply will incorporate most of the equipment to complete the grinding plant including the plant fan.

The MPS mill will grind petcoke with a capacity of 40t/hr to a product fineness of 2% R 90µm. It will come with a SLS BK classifier, allowing both coal and petcoke to be ground in the mill, dried with process gases and then classified in the integrated classifier. Due to the high abrasiveness of Indian coal, the mill will be designed with appropriate wear protection.

Most components of the coal mill will be supplied by Gebr. Pfeiffer India. The housing and foundation parts, the grinding bowl and a large part of the power-transmitting parts will be manufactured in India. Setting up the new MPS mill is planned to coincide with the commissioning of the entire kin line.

Poland: LafargeHolcim has celebrated investing over Euro95m at its Kujawy cement plant since 2008. As part of the Pomeranian Special Economic Zone, the plant has had a number of upgrades over the last decade and has created over 60 jobs.

Projects at the site have included spending Euro24m on environmental improvements such as installing new filters, building a new clinker silo and four cement silos, and converting the plant to process alternative fuels. Euro56m has been invested on production upgrades including a new cement grinding mill, a new calciner and new constant monitoring systems. Euro18m has been spent on two bulk loading terminals, a new weighbridge and self-loading systems and a new laboratory.

Indonesia: Semen Grobogan has ordered two MVR 5000 C-4 mills for cement grinding and one MVR 5000 R-4 for raw material grinding from Germany’s Gebr. Pfeiffer. The package also includes an MPS 3350 BK mill for grinding lignite. The mills will be set up at Grobogan cement plant near Semarang in Central Java.

The cement mills, each featuring a drive power of 4000kW, will be capable of grinding 190t/hr of Ordinary Portland Cement at 3600 Blaine or PPC at 4000 Blaine. In addition, the mills will be suitable for grinding blast-furnace cements. The MVR 5000 R-4 with a drive power of 4300kW is guaranteed to achieve a capacity of 500t/hr of raw meal ground to a fineness of 12% R 90µm. The lignite to be processed has a high feed moisture (37%), which is typical for Indonesia. The inherent moisture content in the lignite is 14%. The MPS 3350 BK with a drive power of 800kW will dry the material to a surface moisture content of 1% while at the same time grinding it at 50t/hr to a fineness of 15-25 % R 90µm. The order also includes a spare parts package for two-year operation.

The order was placed by the Chinese general contractor Nanjing Kisen. Commissioning of the mills is scheduled for the first half of 2019.

Honduras: Cementos del Norte has spent US$29m on upgrades for its Rio Bijao cement plant in Choloma. The project includes increasing the unit’s capacity for production, storage capacity and alternative fuels, according to the La Prensa newspaper. The cement producer is installing a new cement grinding mill at the site. This will enable it to raise its cement prouction capacity to 2.5Mt/yr from 1.5Mt/yr.

Vietnam: Vicem (Vietnam Cement Corporation) Hoang Thach Cement has ordered a type LM 59.3+3 CS vertical roller mill for the Hoang Thach cement plant in Hai Duong province. The mill has a transmission power of 6200kW and it is able to grind 250t/hr of Ordinary Portland Cement (OPC) to a fineness of 3600 Blaine. Commissioning is scheduled for later in 2018.

The scope of supply also includes an external reject system, dedusting equipment, a material conveying system and multi-chamber silos with two packaging systems downstream. The system is equipped with a LOMA LF20 heater run on heavy oil, which produces around 30,000Nm³/hr of hot gas at a temperature of 450°C. In addition, Loesche is supplying the equipment for the power supply and distribution and the grinding plant control. A particular challenge of the project has been supplying new equipment for an existing plant with limited space.

Nepal: Palpa Cement Industries has ordered a MVR 3350 C-4 mill from Gebr. Pfeiffer for its plant at Sunwal, in the district of Nawalparasi. The vertical roller mill has a drive power of 2150kW and is designed to grind 130t/hr of cement at 3000 Blaine and 100t/hr of blast-furnace cement at 3800 Blaine. Commissioning of the mill is planned for mid-2019. It is the fourth vertical roller mill order from Nepal for Gebr. Pfeiffer over the last year.