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This has been achieved with careful design of the slotted and blind wear plates, use of specially-formulated alloys to suit different conditions and component manufacturing techniques that produce higher quality components.
In addition to longer working life, the wear rates of AIAE/VEGA Industries' diaphragms are synchronised as nearly as possible to that of the liners and grinding media, helping to further reduce the downtime needed for maintenance.
To find out more about AIAE/VEGA Industries' diaphragms for tube mills, please contact your regional representative. If you would like to know more about the other cost-efficient products now available from the company, please return to the Cement Industries page.
Dear All Why the slot size of diaphragms in a two cahmber bal mill is 8 to 10mm in I chamber & 6 to 8 in II chamber? The slots in the diaphargm plates can be horizontal or vertical ? What is the logic for horizontal direction or vertical? In somemills the outer row has on eplate vertical & the other horizonal & so on . While middle diaphragm row has vertical slots & innner row is horizontal? Let meknow the reason for the same ? ENGR
An inefficient ball mill is a costly weight on a range of cement plant KPIs from the bottom line to the environmental footprint and the quality of product. Getting the ball mill right is therefore vital to ensuring a plant is as productive and profitable as possible, in the most sustainable way possible.
We understand this and we also know how to get the most out of a ball mill. We should - we've been supplying ball mills for over a century with over 4000 of our mills now installed globally. With this experience comes deep process knowledge. And we combine the two experience + process knowledge to offer mill products that ensure your mill gives you the best possible performance. Its why were here.
Which is where our STANEX diaphragm comes in. Weve taken what we know to build a ball mill diaphragm that not only offers long and trouble-free service life, but also helps to boost ball mill performance with high productivity and high efficiency. This not only helps to reduce ball mill operating costs but also improves the sustainability of mill operations two essential aims in the cement industry today.
Made with highly wear-resistant alloy steel, the STANEX diaphragm is built for long life and low maintenance requirements. Because you have better things to be worrying about than your ball mill diaphragm.
We also designed adjustable lifters that make is possible to maintain appropriate material level in the preceding compartments, helping to avoid excessive wear on the grates, shell liners and ball charge reducing overall mill maintenance requirements.
Weve also designed the STANEX diaphragm so you can enjoy its benefits whatever the size of your ball mill. Its available for all mill diameters in both metric and U.S units. And because the segmented retainer is bolted to the mill shell with a single row of bolt holes only, it can also be adapted to different drilling patterns in existing mills, without making extra holes.
To ensure long-lasting operation, we build the STANEX diaphragm from materials that can stand up to the high-wear conditions of a ball mill. The grates are made of a highly ductile and wear-resistant heat-treated alloy steel, while the lining plates facing the fine grinding compartment are made of 50mm thick heat-treated alloy steel. This gives you an estimated service life of up to 18,000 hours for the grates and 36,000 hours for the plates, when producing ordinary Portland cement from clinker and gypsum.
Meanwhile, the lifters are radially and individually adjustable, making it possible to maintain appropriate material level in the preceding compartment and helping to avoid excessive wear on the grates, shell liners and ball charge. The sturdy design also includes retainer ring of cast-steel segments, bolted to the mill shell, a heavy supporting plate with spacer pipes, and a steel front plate, bolted onto the pipes for rigidity.
The adjustable lifters also help to optimise grinding performance and improve mill efficiency, as does the large grate area, which enables a high circulation factor. And the 8mm slots in the grates have a slightly conical design, with increased width in the direction of flow, to minimise the risk of blockage. Meanwhile, the large centre opening contributes to a low pressure drop, improving energy efficiency, and the short built-in length of the STANEX ensures longer effective mill length compared to other diaphragm types.
FLSmidth provides sustainable productivity to the global mining and cement industries. We deliver market-leading engineering, equipment and service solutions that enable our customers to improve performance, drive down costs and reduce environmental impact. Our operations span the globe and we are close to 10,200 employees, present in more than 60 countries. In 2020, FLSmidth generated revenue of DKK 16.4 billion. MissionZero is our sustainability ambition towards zero emissions in mining and cement by 2030.Get in Touch with Mechanic