Displaying items by tag: grinding plant

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.

US: Orcem Americas, a subsidiary of Ireland’s Ecocem, has been refused planning permission to build a slag cement plant in Vallejo, California. The cement producer was hoping to build a US$50m grinding plant but it faced opposition from local residents on environmental grounds, according to the Irish Times. The issues for the planners was an anticipated increase in the number of trucks on local roads and pollution from the plant. Orcem Americas can now appeal the decision to Vallejo’s City Council if it chooses.

UK: Hanson has re-opened its ground granulated blast-furnace slag (GGBS) grinding plant at Teesport Docks in Middlesbrough. Euro2.4m has been spent on starting up the plant again and 20 new jobs have been created.

The plant was mothballed in 2009 following the financial crisis in 2007. A continuing upturn in construction activity prompted Hanson to return to the site in 2016 and prepare it for re-opening. Slag for the plant will now be imported following the closure of a local steel plant.

“It has taken nine months to get up and running again. One of the main problems we had to overcome was to replace all the copper wiring, which had been meticulously stripped out by thieves,” said site manager Duncan Felgate.

Hanson sells its ground granulated blast furnace slag under the Regen brand name and operates a further two UK production plants at Purfleet in Essex and Port Talbot in south Wales.

Belgium: Gebr Pfeiffer has received an order from Cemminerals to supply a grinding plant for slag and cement. The plant, in Flanders, will use a MVR 5300 C-6 type mill. The order was taken in December 2016 and the mill is scheduled for commissioning in early 2018.

The Pfeiffer MVR 5300 C-6 slag and cement mill will be used to grind five different cement qualities as well as pure slag to three different fineness degrees. The mill is guaranteed to achieve capacities of 132t/hour pure slag, ground to 5000cm²/g acc. to Blaine, and of up to 200t/hour CEM II, ground to a fineness of 3500cm²/g acc. to Blaine. The mill main drive is designed for an installed power of 4600kW, and the SLS 4750 BC high-efficiency classifier, mounted on top of the MVR mill, enables high material fineness degrees of up to 5000cm²/g acc. to Blaine.

In addition to the MVR mill the contract includes handling equipment, two in-feed devices to enable moist slag and dry clinker to be fed to the mill separately, the plant filter, the plant fan, the magnetic drum separator and all ductwork including chutes, expansion joints and the stack. The scope of supply also includes a hot gas generator for the heating of the mill, as well as all electrical drives, starters, frequency converters and the electrical switchgear.

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.