Metso's HRC™ takes high pressure grinding roll technology to the next level
Metso's latest development in comminution equipment, the HRC™, is a major step in the profitable application of high pressure grinding roll (HPGR) technology. Metso has made several key innovations in order to increase throughput and decrease total cost of operation.
(click on picture to expand)
Excellent energy efficiency is one of the key features
with the new HRC™ high pressure grinder
Patented Arch-frame eliminates downtime caused by skewing
Metso's patented Arch-frame creates an even gap setting across the width of the tires, limiting skewing that can result in downtime for mining operations. This anti-skewing Arch-frame also prevents damage to the roller bearings (caused by misalignment) that can occur with the traditional HPGR design.
Flanges maximize wear life and increase throughput
Used in place of spring-loaded cheek plates, the flanges keep the bed of material within the crushing zone and prevent material from bypassing the tires. This enables greater circuit capacity and increases the overall crushing efficiency.
In addition, by preventing material from bypassing the tires, even pressure across the width of the tire is better maintained. By distributing the pressure more evenly, the tire life is maximized by preventing a "bath tub effect," in which the center of the tire wears faster than the edges.
Victoria Herman, Metso's product manager for the HRC, notes that this breakthrough design is a response to the growing needs in the mining industry. "Energy efficiency has been attracting our customers to HPGR technology for years," she says. "But (our design concept) increases capacity and crushing efficiency - and that's something mining companies are always looking to improve on."
Other notable benefits of the HRC
• Hydraulic cylinders are positioned to create a compact design while still providing excellent crushing strength
• Dust enclosure minimizes dust and reduces noise
• Transporter facilites a safe and fast tire replacement
• Feed hopper include liners designed for long life
• Studded tires maximize tire life by building up an autogenous layer
The HRC is ideal for high-tonnage, hard rock applications and can be used as a tertiary, quaternary or pebble crusher. Currently, several HRC units are in operation around the world - with a total of 6,500 operating hours including over 3,800 hours in a mining hard rock application. The machine does have range within hard rock applications: it's been designed for use in diamond, iron ore, copper, gold, platinum and various industrial minerals.
High Pressure Grinding Roll Technology
Metso's HRC™ takes high pressure grinding roll technology to the next level
Metso's latest development in comminution equipment, the HRC™, is a major step in the profitable application of high pressure grinding roll (HPGR) technology. Metso has made several key innovations in order to increase throughput and decrease total cost of operation.
(click on picture to expand)
Excellent energy efficiency is one of the key features
with the new HRC™ high pressure grinder
Patented Arch-frame eliminates downtime caused by skewing
Metso's patented Arch-frame creates an even gap setting across the width of the tires, limiting skewing that can result in downtime for mining operations. This anti-skewing Arch-frame also prevents damage to the roller bearings (caused by misalignment) that can occur with the traditional HPGR design.
Flanges maximize wear life and increase throughput
Used in place of spring-loaded cheek plates, the flanges keep the bed of material within the crushing zone and prevent material from bypassing the tires. This enables greater circuit capacity and increases the overall crushing efficiency.
In addition, by preventing material from bypassing the tires, even pressure across the width of the tire is better maintained. By distributing the pressure more evenly, the tire life is maximized by preventing a "bath tub effect," in which the center of the tire wears faster than the edges.
Victoria Herman, Metso's product manager for the HRC, notes that this breakthrough design is a response to the growing needs in the mining industry. "Energy efficiency has been attracting our customers to HPGR technology for years," she says. "But (our design concept) increases capacity and crushing efficiency - and that's something mining companies are always looking to improve on."
Other notable benefits of the HRC
• Hydraulic cylinders are positioned to create a compact design while still providing excellent crushing strength
• Dust enclosure minimizes dust and reduces noise
• Transporter facilites a safe and fast tire replacement
• Feed hopper include liners designed for long life
• Studded tires maximize tire life by building up an autogenous layer
The HRC is ideal for high-tonnage, hard rock applications and can be used as a tertiary, quaternary or pebble crusher. Currently, several HRC units are in operation around the world - with a total of 6,500 operating hours including over 3,800 hours in a mining hard rock application. The machine does have range within hard rock applications: it's been designed for use in diamond, iron ore, copper, gold, platinum and various industrial minerals.
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