The unique application of a large walking dragline in the mountains of southern West ia was developed and implemented by Hobet Mining, Inc. Hobet is an independent operating subsidiary of Ashland Coal and is headquartered at the No. 21 Mine in Boone County, West ia, near Danville.
Jul 06, 2014· The digital AC drive control dragline comes in different configurations with the boom length ranging from 100m to 130m (325ft to 425ft) and the working weight varying between 7,539t and 8,002t. The operating radius of the dragline is 116m, while the dumping height and digging depth are up to 64.5m and 76.7m respectively.
target mineral reserve in surface mining. Their operational e ciency is greatly a ected by the sequence of positions where the dragline op-erates and the removal and disposal of mate-rial at each position. In this paper, we de-velop two dragline excavation models that can be used for planning and optimizing dragline operations.
May 30, 2010· Operating a NorthWest 190-D dragline digging a sand and gravel deposit and feeding it into a hopper and conveyor system for transport to a washing and classi...
Erie Draglines (EDL) evolved into operation in 2005 but its Founder, Terrie Cox, has over 50 years of experience in Construction, Mining, Underwater Marine Work and Dredging. Terrie is a pioneer of winter road preparation and maintenance in the far north and underwater excavating & pipelines.
CCC Group is the world’s largest erector of mining equipment. We have completed over 70 draglines operating at over 50 mines worldwide. We have also erected numerous cross pit spreaders and bucket wheel excavators.
Dragline Mine Design. Systematic mine planning process, and mining limit assessment using economic ranking criteria. Dragline Key Components. Typical configuration, dig & dump cycle, understanding dragline working envelope, and dragline buckets. Dragline Operating Methods. Range diagrams, pit layout, boxcuts, single
« Back. Noise and Ground Vibration Monitoring Related to Dragline Operations in Phosphate Mining. 05-039-123Final. Summary. The primary objective of this study was to determine levels of noise and ground vibration as a function of distance from draglines operating …
The 9010C dragline, featuring a 42 to 60 m 3 (55 to 80 yd. 3) bucket capacity range, offers an 84 to 107 m (275 to 350 ft.) boom length range, allowing you to customize the boom length for your specific mine geometry.The Centurion electrical control system is standard on this large capacity dragline.
ANALYSIS OF AVAILABILITY AND UTILIZATION OF DRAGLINE FOR ENHANCEMENT OF PRODUCTIVITY IN SURFACE MINES – A CASE STUDY *Mousa Mohammadi 1, Piyush Rai 2, Seyed Kazem Oraee 3, Manish Kumar 4 1Indian Institute of Technology Banaras Hindu University
Sep 19, 1998· The dragline operations leave behind remnant coal pillars which vary from 2 to 10 m at their base and up to approximately 18–20 m high. These pillars support the spoil tip emplaced by the draglines. ... The mineral layer is covered by an even thickness of overburden composed of soft top soil and weathered rocks in succession.
A dragline excavator is a piece of heavy equipment used in civil engineering and surface mining. Draglines fall into two broad categories: those that are based on standard, lifting cranes, and the heavy units which have to be built on-site. Most crawler cranes, with an added winch drum on the front, can act as a dragline.
Productivity Analysis of Draglines Operating in Horizontal and Vertical Tandem Mode of Operation in a Coal Mine—A Case Study. ... Surface mining of minerals by draglines in the USA. Transaction ...
The active population of draglines with metric ton payload ratings of 20 mt and larger is just under 500 and the database includes a total of more than 700. These are classified by the size classes below from the 20-30 mt class up to the largest draglines with 200 metric ton payload ratings.
The machine operating weight including ballast was 6,562,000 pounds. ... In 1941 the first Marion 7800 dragline was built at the Northern Illinois Coal Corporation's Wilmington # 10 coal mine serial number 7509. ... Department of Mines and Minerals -- Printed by authority of the State of Illinois
68 Dragline Operator jobs available on Indeed.com. Apply to Equipment Operator, Crane Operator, Operator and more! Skip to Job Postings, Search Close ... You will be operating equipment and performing light maintenance on our forage equipment as well as operating our manure dragline …
1980 Lima 2400B crawler dragline crane. Manufacturer: Lima; 1980 Lima 2400B dragline with no bucket. This dragline still operates like new Totally rebuilt 379 diesel engine with less than 80 hours. No oil leaks, the cleanest and nicest Lima 2400B so far. 120 f...
With 10 operational surface coal mines and 17 limestone quarries, NACoal delivers more than 30 millions tons of coal. We operate more draglines in the U.S. than any other operation and control over 160,000 surface acres, 1.9 billion tons of coal and 24,000 acres of oil & gas reserves.
A Simulation Model for Selecting Suitable Digging Method for a Dragline Operation, in 25th International Symposium on the Application of Computers and Operations Research in the Mineral Industry ...
NACoal operates and maintains more than 40 draglines throughout the United States. Whether you are operating draglines or evaluating the benefits a dragline can offer, we bring value to every unique situation in a cost-efficient and safe manner.
The Goedgevonden Complex is situated within the Witbank coal field. Opencast dragline mining operations in the area are extracting the No. 2, No. 4 and No. 5 seams. The No. 3 seam is too thin for practical extraction and the seam is not considered an economic Coal Resource in the area.
Offering the highest levels of overburden removal productivity at the lowest total cost per tonne (ton), the 8750 is the flagship model of the dragline product line. The first dragline of any kind to be successfully equipped with AC IGBT drive systems, we developed this superior technology for the sole purpose of making your workday more productive, predictable, and most importantly, safe.
Dragline Operations. Draglines are large machines that can move a lot more materiel quicker than a truck and shovel or excavator combination. They are effective in moving overburden from above the coal to a 'spoil' pile within the length of the boom of the dragline.
On this basis, this paper offered a comprehensive reliability assessment for two draglines currently operating in the Tunçbilek coal mine and discussed preventive replacement for wear-out components of the draglines considering cost factors. ... Minerals, EISSN 2075 …
The tower had to be replaced before the removal of the fourth section, which was the other bullgear and spider, and was lifted, sat into a frame, restrained and skidded out of the dragline where it could be crane lifted to the ground. In order to install the new drum, ALE performed the opposite sequence of operations carried out for the removal.
P&H draglines from have a solid reputation and proven performance in the industry, with boom lengths and bucket capacities available to meet your specific requirements. Our draglines are built with customer-inspired innovations that help optimize rugged, reliable and safe performance.
Dragline in Operation at Ensham Mine Draglines have a boom as long as a football field. They are used to remove overburden at open-cut coal mines. ... Mining Operations Mount Isa Mine ... provides free educational resources and teacher professional development to assist the teaching and learning of minerals and energy.
Become a Dragline Operator: Education and Career Roadmap. Find out how to become a dragline operator. Research the education and training requirements, and …
Mining Operations While most of Mosaic's mining operations use dragline machines, some areas use specialized dredges like the one shown here. The Phosphate Story Watch The Phosphate Story for a nine-minute view into Mosaic's phosphate mining, fertilizer production, reclamation and stewardship practices in Florida.
In the world of mining, not all draglines are created equal. The heavy-duty machinery is used as a primary excavating tool in many surface mining operations worldwide. These highly productive and massive pieces of equipment offer the lowest material cost per ton and have an operating life span of 40 years. Pound for pound, draglines are the most productive and versatile machines in the mining ...