Dragline Gets New Lease on Life
Its total lignite coal reserves is 2.2 billion tons, 1.1 billion tons of which is committed. NA Coal also provides dragline mining services operating under the name North American Mining Co. for independently …
Coal miner hit as the dragline turns
THE Queensland Coal Inspectorate is investigating after a worker was struck by a rotating dragline on January 14 while completing cable relocation works on …
SCIENCE OF MINING MACHINES Performance Analysis …
Draglines are used for overburden removal in mines especially from coal top. Most of the mines have a century old Ward-Leonard technique dragline [1, 2] with analog control in running condition. In dragline, bucket control is the main work, while in Ward–Leonard control draglines, hoist and the
North American Coal Opens Coyote Creek
The latest restored dragline walked off the erection pad in November 2015 at the Coyote Creek mine in Mercer County, North Dakota. A project that began three years ago was completed with the commissioning of a completely refurbished machine. The new AC-powered dragline will be the centerpiece of a lignite mining operation for the next 25 …
Peabody Western Coal Company
Surface Coal Mine Fatal Electrical Accident November 5, 2006 Kayenta Mine Peabody Western Coal Company Kayenta, Navajo County, Arizona ID No. 02-01195 ... The J-19 pit was a coal stripping operation, which included an 8200 Marion electrical dragline for removing overburden. The dragline was driven by 1,000 horsepower, 7,200 volt …
Dragline at Coyote Creek coal mine stuck in a pit
Mike McCleary. JOEY HARRIS. A dragline used to dig at the Coyote Creek Mine near Beulah got stuck in a pit Tuesday afternoon. The incident was caused by the working area below the dragline ...
BNI Coal commissions $31 million dragline in North Dakota
CENTER -- A coal mining company in Center commissioned a $31 million dragline Monday and is about six weeks from putting the massive coal miner to use. BNI Coal hosted the ceremony at its Center Mine.
Critical Analysis of Tandem Dragline Performance in Open Cast Coal
Planning and managing equipment systems of surface mining are critical for achieving higher production and productivity. Poor performance of equipment systems can endanger the economic viability of mining operations []–[].OB removal is a major process in the surface mining of coal, accounting for over 60% of the mining cost [4, 5].Dragline is …
Mining Operations Committed to Long-Term Success
With over 100 years of experience, our mining capabilities are extensive. We leverage our vast experience in true partnership to achieve your goals. As the largest lignite producer in the U.S., we operate mines with annual production levels ranging from a few hundred thousand tons per year to more than 10 million. We specialize in reserve ...
Coal mining
The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many technological, …
Big And Mighty: The Evolution Of Dragline …
The history of dragline excavators dates back to the early twentieth century when they were first used for coal mining in the United States. Over the years, they have evolved …
Surface Coal Mining Methods in Australia
The following major equipments are used in Australian coal mines: x Draglines, x Trucks, x Shovels x Bucket wheel excavators, x Crushers and conveyors, x Scrapers, x Dozers, x Slushers and dragline hoppers, and x Surface continuous miners. Initially open cut mines in coal mining was cl assified as strip mines where draglines were
Draglines 101: How They Do It | Mining Digital
Armstrong Retrofits AC Technology for Dragline Mining | E …
WEBBy Steve Fiscor, Editor-in-Chief. Armstrong Coal purchased an older dragline from a mining company in Colorado to refurbish for its new Lewis Creek mine in Western …
Coppabella Coal Mine
The mining process is conventional, using dragline with truck and shovel and hydraulic excavators. The P&H 4100 electrical shovel is used for pre-stripping operations and removing overburden. In order to facilitate the process, the overburden is first drilled and blasted. A Marion 8200 dragline is used on the final pass to coal in the central ...
DRAGLINE ORDER – New Bucyrus 8750 headed for Canadian coal mine
Coal. SOUTH MILWAUKEE, Wisconsin - Although it is not at liberty to release the name of its customer, BUCYRUS INTERNATIONAL has sold a new 8750 AC walking dragline to a "major" Canadian coal mining company. This dragline, with a contract value in excess of US$100 million, will have a complete AC-IGBT electrical …
Coal mine worker struck by rotating dragline
On Sunday 14 January 2024, a worker was struck by a rotating dragline upon completion of cable relocation works, within the operational swing boundaries of the dragline. The …
Usibelli Coal Mine
A Journeyman Electrician with 2 or more years of mining experience. Must be able to work independently and have experience in a mining environment. Must pass a post-offer physical and drug test. Have or will obtain an MSHA Surface Coal Mining Electrical Certification green card within 120 days of date of hire as a condition of …
Analysis of Energy Consumption in Surface Coal Mining
The energy sources in mining operations. are diesel fuel, electricity, natural gas, coal and gasoline, with participation in total energy consumption of 34%, 32%, 22%, 10% and 2%, respectively ...
Luminant Restores Pre-Owned Draglines
Draglines have long been considered the lowest cost per ton method for overburden removal in coal mine applications, and Bucyrus has been a leading force in the evolution of these majestic excavators. ... Texas, which is located about 150 miles from Kosse. Lastly, Bucyrus performed a complete electrical upgrade on the 8200 dragline, …
8750 Draglines | |
3.8-4.1 million kg (8.5-9.1 million lb) View Details. ® draglines offer the lowest material removal cost per ton, consume less power and emit fewer greenhouse gases than other methods of overburden removal, making them the most productive and environmentally friendly excavators in the industry. The ® 8750 is our flagship model.
Largest Dragline in the World | Biggest Dragline Ever Built
Big Muskie. Big Muskie was a legend among machines while in operation. Also called Muskie and Ol Musky, the machine was a model 4250-W Bucryus-Erie dragline. It was the only model ever built, and took two years and some 200,000 hours to construct. When Muskie was built in 1969, it cost $25 million dollars. That's approximately $171 million …
Draglines
A large dragline system used in the open pit mining industry costs approximately $50-100 million, and weigh in the vicinity of 2000 metric tonnes, draglines are among the world's …
Mining Cable Basics
ATI Electrical Supply is a distributor of General Cable, Nexans, Southwire and Telefonika mining cable. Call one of our mining experts at 800-597-9311 today. We can help specify and provide pricing and availability for all your mining needs. Mining cable is a generic term that describes cable used for distributing power to equipment in …
Critical Analysis of Tandem Dragline Performance in …
Dragline is predominantly used for overburden removal to expose the coal. Draglines are a self-contained system that can load and transport overburden (OB) to …
Dragline Falls Into Mine Pit | Dakota News Network
December 27, 2023. By Paul Bougie. (Beulah, ND) — A heavy piece of equipment fell into a mine pit in Mercer County on Tuesday. It happened at the Coyote Creek Mining Company near Beulah, and reports from the scene indicate that the machinery that fell into the pit is a dragline excavator, which is a piece of equipment commonly used in surface ...
dragline Archives
In 2018, senior management of BHP's South Walker Creek coal mine was developing a plan for the DRE28 DC 8050, a nearly 40-year-old dragline on which the DC rotating equipment and DC control system had reached …
Major Mines & Projects | South Hallsville No. 1 (Sabine) Mine
The Sabine Mining Company, whose parent company is North American Coal Corp., operates (long-term contract) the South Hallsville No. 1. The South Hallsville No. 1 Mine generally produces between 1.5 million and 2.0 million tons of lignite annually. Located just outside of Hallsville, Sabine Mining Company's expansion has led to more than ...
(PDF) Productivity Analysis of Draglines Operating in …
In an Indian study for a large dragline operated surface coal mine, a 40% gain in OE in terms of mining rate (m3/hr) resulted in a gain in EE with an annual reduction of GHG, TSP, and PM10 ...
Dragline: what it is, how does it work, main uses and who
The dragline, or dragline excavator, is a mechanized excavator and crawler that is used in large-scale works. It operates with a shovel or scoop attached to the machine only with cables, which offers it a wide range of action and load. However, it reduces power, so the dragline is ideal for excavating and hauling materials that are not very hard.
North Dakota lignite then and now
Kim Fundingsland/MDN The massive dragline that removes earth above veins of lignite coal at the Falkirk Mine near Underwood operates 24 hours a day, seven days a week. It began operation in 1980.