Displaying items by tag: mill

Sweden: Construction and engineering conglomerate Peab’s subsidiary Swecem has engaged German-based Gebr. Pfeiffer for the supply of one MVR 2500 C-4 grinding mill at its granulated blast furnace slag (GBFS) grinding plant in Oxelösund in Södermanland. The mill has four grinding rollers and a table diameter of 2.5m, giving it a 25t/hr slag grinding capacity.

Swecem operates a concrete plant in Kungsängen. It currently uses ground granulated blast furnace slag (GGBFS) supplied by Irish-based Ecocem’s 0.7Mt/yr Dunkirk grinding plant in France.

India: JSW Steel has signed a 10-year agreement with US-based Harsco for a range of mill services. Harsco will provide JSW Dolvi in Maharashtra with on-site slag handling services including under-furnace digging, ladle wrecking, and hot slag transport. No value for the contract has been disclosed.

Bangladesh: Shah Cement has inaugurated the world’s largest vertical roller mill (VRM), supplied by Denmark’s FLSmidth, at its Muktarpur plant in Munshiganj. The mill is designed to produce Ordinary Portland Cement (OPC), Pozzolana Portland Cement (PPC), Portland Slag Cement (PSC) and slag cement types. It is producing PPC at a capacity of 500t/hr at 3500 Blaine with 15% slag.

The FLSmidth OK 81-6 Mill has an 8.1m grinding table and six grinding rollers powered by two 5.8MW FLSmidth MAAG Max Drive gear systems. FLSmidth says that the mill is the largest VRM ever to be installed in a cement plant in terms of dimension, operating capacity and installed power. In addition to the OK Mill, FLSmidth supplied the process and layout engineering, along with site advisory. The supporting equipment included FLSmidth Pfister weigh feeders, FLSmidth Airtech process bag filters, process fans and auxiliary equipment from raw material hopper discharge to process bag filter discharge. It was put in operation in September 2018

Shah Cement Industries is the largest cement producing plant in Bangladesh, with a capacity of 8.0Mt/yr. The company is part of the Abul Khair Group, the largest business conglomerate in Bangladesh. It produces three main cement products including CEM II – Portland Composite Cement and CEM –III Blast Furnace Cement. Both products use slag.

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.

India: Loesche has provided an update on the operation of a slag grinding mill it sold to Sri Balaha Chemicals in 2016. The LM 35.2 +2 S cement mill was supplied in 2016 and installed and commissioned by March 2017 at the customer’s site in Hindupur, Andhra Pradesh. The mill produces 50t/hr of granulated ground blast furnace slag (GGBFS) at 4000cm²/g Blaine. Subsequently the mill has achieved a production rate of 52t/hr and a specific power consumption rate as low as 27.2kWhr/t.

Germany: Hargreaves Raw Material Services has ordered a coal grinding plant from Claudius Peters. The plant will be installed at DK Recycling und Roheisen’s plant in Duisburg. DK, a recycler of ferrous waste including slag, will also operate the unit. Hargreaves, a raw material trader, plans to use the coal mill to supply clients in Germany and Western Europe.

The scope of supply comprises the raw coal handling, a EM 95 – 6118 type mill with a capacity of 52t/hr, the pneumatic conveying to the (already existing) coal dust silos at a distance of about 500m and four coal dust silos with truck loading. Claudius Peters will be responsible for engineering, delivery, erection and commissioning including staff training. Commissioning is planned for the fourth quarter 2018.

Vietnam: Bim Son Cement has ordered a vertical roller mill to grind clinker and slag from Loesche for its 4Mt/yr plant in Thanh Hóa province. The new mill will have a throughput of 250t/hr and be able to grind input materials into Ordinary Portland Cement PCB 40. The order also includes a silo, blower, filter and a packing plant. The new mill is scheduled for commissioning in August 2017. No value for the order has been disclosed.

The subsidiary of Vietnam National Cement Corporation (VICEM) previously commissioned a mill from Loesche in 2000. This was followed by a raw mill and a coal mill in 2006.

India: Sagar Cement has ordered a vertical roller mill from Gebr. Pfeiffer for grinding granulated blast-furnace slag and granulated blast-furnace slag cements. The mill will be used at a new 160t/hr slag grinding plant at the cement producer’s Bayyavaram Village unit near Visakhapatnam in Andhra Pradesh. Delivery is scheduled to take place before the end of 2017. No price for the order has been disclosed.

The order is for a MVR 5000 C-4 mill equipped with a 4300kW-drive and four grinding rollers with active redundancy. The plant will grind granulated blast-furnace slag with a fineness of about 4,500 cm²/g acc. Blaine and it will also be able to grind composite cements from varying portions of granulated blast-furnace slag, fly ash and gypsum.

Core components of the mills, including the roller, tension system, grinding bowl and planetary gearbox, will be supplied from Europe. The mill foundation parts, the housing and the integrated high-efficiency classifier of the type SLS 4750 BC will be provided by Gebr. Pfeiffer India. The local subsidiary will also supply most of the equipment required to complete the grinding plant, including the plant fan and hot gas generator.

France: Ecocem France has ordered a Loesche type LM 46.2+2 CS mill for a slag cement grinding plant that it is building in Dunkirk. It follows a previous order by Ecocem of a LM 46.2+2 CS mill for the dry grinding of ground granulated blast furnace slag (GGBFS) at its plant at Fos-sur-Mer.

The LM 46.2+2 CS for the plant in Dunkirk is designed for the grinding of cement clinker and granulated blast furnace slag at a capacity of 105t/hr GGBFS. The gearbox will have a capacity of 3150kW.

All the mechanical equipment for the grinding plant starting from mill feed to the product discharge into the product silos is included in the Loesche scope of supply. The Loma heater type LF 28-L will be a full-inlined type designed to burn natural gas as well as blast furnace gas. The burner supplied by Loesche will be the MSBZ type, complete with fitting rack and local switch cabinet.

The lead-time for the main components of the mill and for the additional units included in the scope of supply is 6 to 13 months. The commissioning of the vertical roller mill is planned for the middle of 2017.

Ecocem’s grinding plant will be installed close to Arcelor steelworks for use of their granulated blast furnace slag. This LM 46.2+2 CS will be the seventh Loesche vertical roller mill installation for slag and cement grinding in France.

India: Sri Balaha Chemicals has ordered a LM 35.2+2 CS vertical roller mill from Loesche to grind slag at its Hindupur grinding plant in Andhra Pradesh. The mill is designed for grinding granulated blast furnace slag, it will have a production capacity of 50t/hr and the material will be ground to a fineness of 4000cm²/g Blaine. The contract also includes supply of a mill fan, dampers, expansion joints, a magnetic separator and a metal detector. The lead-time for the main components of the mill is 10 months.

Loesche India, Loesche’s subsidiary based in Dehli, will be handling the order. A similar mill has been operating at a cement plant in Bhavanipuram since 2001. Loesche India has sold over 100 vertical roller mills for the grinding of raw material, coal, and cement to various clients in India. World firsts for Loesche India include the LM 69.6 a six roller mill for raw material grinding, the LM 56.3+3 CS and the LM 63.3+3 CS.