Displaying items by tag: vertical roller mill

Germany: Gebr. Pfeiffer has launched a range of webinars and individual analysis and advice sessions in order to support cement producers preparing for start-up after the global coronavirus crisis. The services include webinars about vertical roller mill grinding and the Gebr. Pfeiffer MVR roller mill range and ready2grind modular system, as well as individual remote inspections. Gebr. Pfeiffer is also offering individual start-up support sessions.

China: Anhui Conch’s subsidiary China Cement Plant Company (CCPC) has made the best of the downtime necessitated by the coronavirus outbreak by carrying out necessary maintenance work on its integrated plant’s third line, including the installation of a new vertical roller mill. Anhui Conch says CCPC is undertaking the work with the greatest degree of care for the ‘prevention and control of new coronavirus cases.’

Denmark: FLSmidth says it sold 31 new vertical roller mills (VRM) in 2018 for all grinding applications. The combined cement grinding capacity of its OK Mills VRM product line grew by over 38% year-on-year to 3145t/hr in 2018 from 2270t/hr in 2017. The average grinding capacity per sale of OK Mills for the cement industry grew by almost 10% to 225t/hr from 206t/hr.

The Danish equipment manufacturer installed its first OK Mill in 1982. To the end of 2018 it has sold 184 mills. It has supplied VRMs to 67 countries around the world since the OK Mill launched. Since the start of 2017 OK Mills have been sold in Indonesia, the Philippines, Algeria, Turkey, the UK, Pakistan, Nigeria, Kenya, Peru, Cuba, India, Nepal, Algeria and Egypt. Shah Cement in Bangladesh inaugurated in 2018 an 81-6 OK Mill, the world’s largest vertical roller mill for cement grinding. It featuring six rollers and an 8.1m diameter grinding table.

Nigeria: Loesche has released details on its order for the United Cement Company of Nigeria (Unicem) cement plant at Mfamosing, near Calabar in Cross River State, which was commissioned in September 2016. The order was for two vertical roller mills (VRM): one type LM 60.4 for grinding cement raw material and one LM 70.4+4 CS, the biggest Loesche VRM built for grinding cement clinker.

Loesche worked with Renk to develop the Compact Planetary Electrical (COPE) drive due to the high power requirements of the LM 70.4+4 CS mill. This mill was designed for a capacity of more than 370t/hr to a fineness of 4700 Blaine that required a drive system that could power it up to 8800kW. So the COPE system was designed for mill drive powers ranging from 4000 – 15,000kW. The COPE gearbox is also equipped with eight individual drive units, which are each designed for a capacity of 8800kW, allowing for redundancy in case of unit failure.

Other notable highlights of the installation that Loesche have highlighted include the equal size as standard drive units for VRMs that allow for the exchange of conventional gearboxes with the setup. The installation is also the first usage of an eight-drive unit in a VRM gearbox and the first time a multiple drive in a VRM can operate with or without a variable frequency drive.

Delivery of the order started in October 2015. First production of cement on the new production line began in September 2016. The new line increased the plant’s cement production capacity to over 5.5Mt/yr from 2.5Mt/yr. It was built by China’s CBMI Construction.

Thailand: Siam Cement has ordered a LM 56.3+3 CS vertical roller mill from Loesche for its cement plant in Kaeng Khoi. The mill will produce medium-fine cement qualities and is designed for grinding clinker, gypsum and limestone. The cement producer previously ordered a LM 56.3+3 CS mill from Loesche for its Ta Luang cement plant in 2014.

Egypt: Helwan Cement has ordered a vertical roller mill from Gebr. Pfeiffer to grind coal at one of its cement plants in Egypt. Delivery of the coal mill is scheduled for the end of 2016. The order was placed by Beijing Triumph International Engineering.

The type MPS 3350 BK coal mill will have an installed gearbox power of 1050kW. It is designed to grind 80t.hr of coal to a product fineness of 12% residue on 90μm and 60t/hr of pet coke to a product fineness of 6% residue on 90μm. Gebr. Pfeifer’s personnel will also supervise erection and commissioning.

Mexico: Cementos Moctezuma, a joint venture company of Cementos Molins, Buzzi Unicem and Grupo Carso, has ordered a Loesche vertical roller mill LM 53.3+3 C for its cement plant in Apazapan, Veracruz. The mill will produce 205t/hr CPC 30 cement at 4000 Blaine or 195t/hr CPC 40 cement at 3700 Blaine.

The order also includes a LDC classifier (Loesche Dynamic Classifier), as well as the COPE gearbox, including gearbox drive motors, developed in cooperation with RENK AG. The COPE gearbox features a redundancy of eight motors. With all eight motors in operation, an output totaling 4.6MW is achieved. The customer advantage lies in the fact that the COPE gearbox can reach up to 100% of the mill capacity performance even with a reduced number of motors. The COPE gearbox has the same external dimensions as a conventional planetary gear system and thus requires no extensive enlargement of the mill foundations.

Turkey: Biberci Insaat is building its first cement plant in Konya, Turkey and it has ordered Loesche's LM 56.3+3 vertical roller mill for clinker grinding. Biberci Insaat specialises in infrastructure works including road construction, interchange, water conduction lines, sewerage, natural gas and other energy transfer lines.

One of Biberci Insaat's first investments for the new greenfield cement plant is the order of Loesche's LM 56.3+3 cement mill for clinker grinding. The mill will produce 200t/hr of Ordinary Portland Cement at 3,800 Blaine. The gearbox is planned with a capacity of 5400kW. Delivery is scheduled for the third quarter of 2015.

Turkey: Engineering supplier Loesche has released information about a contract it signed in July 2013 to supply Göltas Cimento with a Type LM 56.3+3 vertical roller mill for cement grinding for its plant 130km north of Antalya. Loesche has previously supplied the company with vertical roller mills for cement raw material and coal grinding. The mill will produce at least three different types of cement, a standard OPC cement and various types of composite cements, at a production rate of up to 230t/hr.