Tag Archives: Jack Meegan

Metso Outotec to bring HRC benefits to other OEM’s HPGRs

Comminution of minerals, Mineral processing, , , , , ,

Metso Outotec says it is launching the mechanical skew control HPGR (High Pressure Grinding Roll) retrofit kit for improved throughput and energy efficiency on the heels of its new HRC™e HPGR release.

The HRC HPGR was launched back in 2014 pioneering the use of flanges and non-skewing design and, now, those same benefits can be had on existing, non-Metso Outotec machines, the company says.

The new HPGR retrofit kit takes the key components responsible for minimising skew from the HRC and makes the technology more accessible without the major investment or need to acquire a new machine, according to the company.

“We are very excited to introduce the new flanged roll with mechanical skew control HPGR retrofit kit, which allows customers to maximise the performance of their existing equipment without the capital expenditure investment of purchasing expansion machines,” Jack Meegan, Product Director, SVS, Stirred Mills and HPGR at Metso Outotec, says. “This is truly a value option for an extended customer reach.”

Key benefits of Metso Outotec HPGR retrofit kit include the ability to increase throughput by up to plus-20%; improved energy efficiency with the flanges ensuring even breakage rates across the whole width of the roll; reduced circulating loads as less material bypasses the rolls and more ore continues to the next stage of the process; and reduced wear costs with the flanges allowing harder studs for longer tire life.

Miners able to pick ‘n’ mix with latest FLSmidth mill lining components

Comminution of minerals, Equipment maintenance, Mineral processing, Mining equipment, Mining maintenance, Mining safety, Mining services, , , , , , ,

FLSmidth says it has launched redesigned mill lining components engineered to suit the specific functions and differing operating environments of the mining industry with its.

The new PulpMax™ mill liners are designed to increase the throughput of semi-autogenous (SAG) mills and substantially boost the wear life of liners, the company said.

FLSmidth said: “Delivering on a promise to provide increased productivity to the mining industry, the composite design incorporated in FLSmidth’s new PulpMax mill liners ensure that users enjoy reduced downtime and maintenance, increased throughput and improved worker safety.”

With lighter weight mill liners, installation is faster and safer as each liner is easier to manipulate, according to the company. There are also fewer parts, and, hence, fewer movements are required to perform a reline, resulting in a significant decrease in scheduled downtime.

The composite nature of the liner reduces its weight by almost 50%, according to FLSmidth, which allows the plant to increase its ball charge level without increasing the total weight of the mill.

This higher ball charge further contributes to the higher throughput.

“The lighter weight of these liners has an important impact on size, design and installation time,” the company said. “Each liner can now be larger – subject to the size of the mill opening – and the mill can be lined with fewer of them, reducing the downtime required to conduct replacement.

A lighter liner means fewer bolts to hold it in place, a factor further reducing installation time, according to the company. This shorter downtime also means less time for contractors inside the mills, leading to a faster and safer liner changeout.

Another important benefit of the composite material used in many of FLSmidth’s redesigned liners is it is not necessary to torch the liners, as is sometimes required when removing old steel liners, the company said. “This torching process in the mill is best avoided, as it can cause costly damage to the mill shell,” FLSmidth explained.

Finally, there has also been the development of composite material shell liners bolted from the outside of the mill, once again, speeding up installation and reducing risk.

Jack Meegan, Product Line Manager for Comminution at FLSmidth, said: “As mines increasingly recognise the positive financial impact derived from just a few more percentage points in throughput improvement, many are looking beyond conventional steel cast liners for mills. FLSmidth’s innovations, based on combinations of steel, rubber and ceramic components, allow the liners to be thinner, resulting in a larger volume inside the mill, making higher charge levels possible.”

He continued: “Responding to the continuous assessment of customer needs, FLSmidth has launched a mill liner solution based on extensive data on mill operations, shutdowns, wear profiles and other factors. These have been used to develop a high-end technical and financial solution.”

Following installation, an ongoing measurement of actual wear, tonnage processed and estimated wear life is conducted so further recommendations can be made to improve performance, Meegan explained.