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Displaying items by tag: Mill

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Bestway Cement orders four mills from Loesche

29 May 2018

Pakistan: Germany’s Loesche has sold four vertical roller mills (VRM) to Bestway Cement through China’s Sinoma International Engineering. The mills will be used to upgrade Bestway Cement’s Farooqia plant in the Punjab province. No expected date of commissioning or value for the order has been disclosed.

The order consists of one raw mill, one coal mill and two clinker mills. One four-roller mill VRM with a capacity of 450t/hr will be used to grind cement raw material to a fineness of 12% with sieving residue of R 90μm. Two further mills with a throughput of 170t/hr will serve for the subsequent grinding of cement clinker to a fineness of 3200 Blaine. One large modular VRM with a capacity of 40t/hr will be used in the grinding of coal to a fineness of 10% and R 90μm sieving residue.

Published in Global Cement News
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Loesche sells two coal grinding mills to Cruz Azul

18 May 2018

Mexico: Germany’s Loesche has sold two coal or petcoke grinding mills to Cruz Azul. Both will be used on new production lines at cement plants in Hidalgo and Oaxaca respectively. No value for the deal has been disclosed.

Each mill will have a capacity of 65t/hr. Loesche will be supplying complete plant equipment, including process gas filters, mill fans, inerting units, explosion protection valves, kiln gas cyclone separators, feed screw and drag chain conveyors as well as the complete electrotechnical equipment. The scope of supply also includes engineering for steel and concrete construction.

Loesche previously delivered a LM 46.2+2 CS type mill to Cruz Azul’s Tepezalá cement plant, operated under the Cycna subsidiary, at the end of 2016.

Published in Global Cement News
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FLSmidth to supply mills to three customers in the Philippines

17 May 2018

Philippines: Denmark’s FLSmidth has won mill orders from San Miguel Northern Cement, Ionic Cementworks Industries and Oro Cemento Industries Corporation. It will supply four OK 56-4 vertical roller mills for cement grinding for the clients at different locations in the country. In addition FLSmidth will also deliver planetary mill gear units and air pollution control filters. The mills are expected to be installed by mid-2019. No value for the orders has been disclosed.

Published in Global Cement News
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Gebr. Pfeiffer starts installation of mill for Osho Cement and HeidelbergCement in South Africa

17 May 2018

South Africa: Gebr. Pfeiffer has started installing a MVR 3750 C-4 mill for a joint venture between Osho Cement and HeidelbergCement that is building a cement grinding plant at Port Elizabeth. The deal was agreed in 2017 and TCDRI is the general contractor. It is Gebr. Pfeiffer’s first MVR mill in the country.

The new mill will be grinding 110t/hr of Ordinary Portland Cement (CEM I) to a fineness of 3500cm²/g Blaine and 80t/hr of blast-furnace cement (CEM III-A) to 4500cm²/g Blaine. A SLS 3750 BC classifier with high-precision cut will be mounted on top of the mill. The mill will have an installed power of 2600kW. It is intended to start operation later in 2018.

Published in Global Cement News
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Gharibwal Cement starts operation of vertical grinding mill

16 May 2018

Pakistan: Gharibwal Cement has started commercial operation of a 250t/hr vertical cement mill for grinding cement. It says it is the single largest cement grinding mill in the country. The cement producer operates a 2.1Mt/yr integrated plant at Ismailwal in Chakwal.

Published in Global Cement News
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Cement highlights from the Global Slag Conference 2018

02 May 2018

There is lots to mull over for the cement industry from last week’s Global Slag Conference that took place in Prague.

One striking map from Michael Connolly, TMS International, showed the status of slag and steel products in the US. It was a multi-coloured patchwork of different regulatory statuses from approval to be used as a product to regulatory exclusion. This won’t come as a surprise to many readers but even within one country the way slag can be used legally varies.

As this column reported last year after the Euroslag Conference, the European Union can be presented in a similar way. The irony here is that increased use of slag and other secondary cementitious materials (SCM) is exactly the kind of change the cement and concrete industries need to make to decrease their carbon emissions. Constant quibbles over whether slag is a product or a waste undermine this. Happily then that Connolly was able to report progress in the US as lobbying by industry and the US National Slag Association have led to more states legally accepting slag as a product.

However, cement producers have other concerns in addition to environmental ones when it comes to slag usage as Doug Haynes from Smithers Apex explained. Haynes, a former UK steel industry worker turned consultant, spoke around a market report on the future of ferrous slag. His take on Basic Oxygen Furnace (BOF) slag was that despite fuel savings, decreased CO2 emissions and the benefits of embodied iron when it is used as a raw material for clinker production, it is in the interests of cement producers for slag to be a waste because they then get it for free or at a reduced rate. It’s a similar story to the use of waste-derived fuels powering cement plant kilns where producers want lower fuel costs but waste collectors want value for their product. Unsurprisingly, Haynes wanted cement producers to accept the value embodied in BOF slag.

Charles Zeynel of ZAG International, an SCM trader, then laid out the situation where global SCM supplies are remaining static but cement demand is growing. Coal-fired power station closures are reducing supplies of fly ash, another SCM, placing pressure on existing granulated blast furnace slag (GBS) slag supplies. The message was very much in a slag trader’s favour but instructive nethertheless. If slag is in demand then the price will rise. Anecdotally, the increased number of cement producers at the conference seemed to indicate increased interest of the cement industry in the product.

Lots more speakers followed on topics such as slag beneficiation, grinding advances and new innovations. On grinding, one surprise that popped up was that Spain’s Cemengal has sold a Plug & Grind Vertical mill to CRH Tarmac’s cement plant at Dunbar in Scotland. It is the first such sale of this product in Europe. The last speaker, Jürgen Haunstetter of the German Aerospace Centre, stuck out particularly with his presentation on using slag as a thermal energy storage medium in a concentrated solar power (CSP) plant. This may not seem connected to the cement industry but it is along similar lines to Italcementi’s project at the Aït Baha cement plant in Morocco, which uses a CSP process that can be used with the plant’s waste heat recovery unit.

The Global Slag Conference will return in April 2019 in Aachen, Germany.

Read the full review of the 13th Global Slag Conference 2018

Published in Analysis
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Kohat Cement starts new cement mill

01 May 2018

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.

Published in Global Cement News
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Cemengal supplies modular vertical mill to Tarmac Dunbar plant

27 April 2018

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.

Published in Global Cement News
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Gebr. Pfeiffer sells first mills to Dangote Cement

26 April 2018

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.

Published in Global Cement News
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Dangote Cement to use two mills from Loesche at Obajana plant

23 April 2018

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.

Published in Global Cement News
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