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October 06, 2008

Comprehensive Pump Book Available

The reference publication Optimizing Pumping Systems: A Guide to Improved Efficiency, Reliability, and Profitability is now available from the North Americabased Hydraulic Institute. The 250-page book, according to the publisher, is the most definitive guidebook to date on how to optimize pumping systems for maximum energy efficiency. Based on the collaborative efforts of industry experts, the compendium explains how optimizing both existing and new pumping systems, and purchasing based on lifecycle cost, can lead to increased profitability through a reduction in unnecessary, expensive energy consumption and maintenance costs. The guide covers a range of topics including: pump fundamentals, pump and system interaction, calculating cost of ownership, improving the performance of existing pump systems, optimizing new designs, and pumping system economics—opportunities to improve lifecycle performance. Also included: a 13-page glossary of terms along with case studies and a detailed matrix of useful tools for optimizing pumping systems. Optimizing Pumping Systems is $195/single copy, with discounts available for larger quantities. For more information, visit the company’s Web site. www.pumps.org

MSHA Refers Issues Relating to Crandall Canyon Mine to U.S. Attorney for District of Utah

The Mine Safety and Health Administration (MSHA) recently acknowledged that it has made a criminal referral of issues relating to the Crandall Canyon mine to the United States attorney for the District of Utah in a motion filed with the federal Mine Safety and Health Review Commission.

The criminal referral arises out of the same facts, events, and conditions that led to MSHA’s issuance of civil citations and orders on July 24, 2008. At that time, MSHA fined the operator of the Crandall Canyon mine $1,340,000 for alleged violations that directly contributed to the deaths of six miners last year. Agapito Associates Inc., a mining engineering consultant, was fined $220,000 for an allegedly faulty analysis of the mine’s design.

"Through its investigation of the tragic accidents last year at Crandall Canyon, MSHA determined that the operator and its engineering consultants demonstrated reckless disregard for safety," said Richard E. Stickler, acting assistant secretary of labor for MSHA. "MSHA has referred this case for possible criminal charges."

The United States attorney for the District of Utah requested that the secretary of labor seek a stay of all civil proceedings, including all discovery in all civil proceedings, in response to this criminal referral. The requested stay is necessary to avoid potential interference with the criminal enforcement process, which could arise from a contemporaneous related civil enforcement proceeding.

October 01, 2008

The New Cat 785D Mining Truck

The new Caterpillar 785D Mining Truck incorporates new features to boost performance and reliability, reduce engine emissions, and enhance safety. The improvements also focus on component commonality to keep parts stocking and maintenance simple. The 785D builds on more than 20 years of proven performance for the 785 model. The 785D target payload ranges from 142 to 155 tons depending on the specific configuration. The range enables new trucks to integrate well with fleets of earlier 785s.

Using the latest technology, the Cat 3512C HD engine maintains fuel efficiency, delivers 1,348 net horsepower, and is compliant with U.S. EPA Tier II emissions standards. The engine is capable at altitudes up to 14,000 ft with no derate. With the change to a high displacement engine, engine life is extended.

Caterpillar also introduces the X body with the 785D. The X body provides mine specific options (e.g. liners, rail caps, sideboards, etc.) for new sites and contractors. The new body also provides greater volume—111 cubic yards (cu yd) vs. 102 cu yd for the dual slope body. Additional body choices are Mine Specific Body (MSD II), gateless coal body, and dual slope. The canopy of each of the bodies extends farther over the cab for greater protection. Additionally, the 785D has improved catwalks and a factory installed 600-mm diagonal stairway.

A number of changes extend reliability and durability: a new pump drive system provides continuous rear axle filtration. Benefits include cleaner oil, less downtime, and improved component life. Extended life disc brakes may achieve up to double the wear life of standard brakes and are resistant to glazing. The result is consistent braking power and reduced maintenance. New air intake and filters have a new seal, which provides easier servicing and lower maintenance costs. The Cat mechanical drive power train and power shift transmission provide superior operating efficiency and control on steep grades, in poor underfoot conditions and on haul roads with high rolling resistance. The 785D retains the Caterpillar mechanical power train that has enabled 785 models to achieve high productivity and reliability in challenging mining conditions around the world.
www.cat.com

Crow Tribe Strikes Deal for Coal Project

The Crow Tribe recently struck a deal with an Australian company toward building a $7 billion plant to convert coal into liquid fuels, which would be among the first such projects in the nation, The Associated Press reported.

Capping months of negotiations, the Crow Legislature ratified a 50-year development agreement with Australian-American Energy Co., a subsidiary of Australian Energy Co.

The Many Stars coal-to-liquids plant initially would produce 50,000 barrels a day of diesel and other fuels. Construction would begin in several years and coal for the project would come from a mine yet to be developed by the tribe on the reservation, Crow leaders said.

Carl Venne, the tribe’s chairman, said the coal-to-liquids project offered an unprecedented chance at improving the lives of the tribe’s 12,000 members. The agreement calls for the Crow to receive up to 50% of profits from the plant after investors in the project recoup their costs. “It means we will become self sufficient as a tribe,” Venne said. Total proceeds to the tribe could eventually top $1 billion annually—a sum that dwarfs the Crow’s current annual budget of about $26 million.

The Crow reservation sits atop some of the nation’s largest coal reserves—an estimated 9 billion tons of recoverable resources. Yet only limited mining has occurred, and the tribe's economy remains hobbled by high rates of poverty and unemployment.

Venne predicted environmental groups and other “outsiders” would line up to oppose the tribe’s plant proposal. But he added they would have a hard time arguing against economic development on the reservation. “People have to realize, this is one of the poorest counties in the whole nation,” he said referring to Big Horn County, which includes most of the reservation.

No large-scale coal-to-liquids plants have been built in the United States, although several are proposed or are on the drawing boards in Wyoming, Ohio, West Virginia, and elsewhere. Soaring construction costs and other hurdles have derailed some projects—including one in Montana, near Roundup.

But Crow leaders said they are confident high oil prices will spur increased interest in synthetic alternatives such as coal-derived diesel. Future expansions of the Many Stars plant could eventually bump up production to as much as 125,000 barrels of fuel a day.

Approximately 1 ton of coal would be needed for every barrel of fuel produced by the plant.

“With the vast reserves we’ve got, there’s no sense in us not being a major player,” said Crow legislator Conrad Stewart.

Australian Energy’s Chief Executive Allan Blood has started two similar projects in Australia, including a $2 billion plant announced in June that would convert coal into liquid fertilizer. The second project recently was sold to Shell and Anglo American for $5 billion, according to Australian news reports. Neither is yet producing fuel.

Several Australian-American Energy executives were on the Crow reservation anticipation of the tribal legislature’s action. They said they were pleased with the agreement. South Africa is home to the only existing commercial-scale coal-to-liquids plants, built during the apartheid era after oil imports into the country were blocked by international political sanctions.