The Rich History of Big Brutus. Constructed in 1962 by the Bucyrus Erie company for the Pittsburg Midway Coal Mining Company, Big Brutus served as a testament to human ingenuity and hard work. This colossal machine operated for over a decade, dramatically increasing the efficiency of coal mining in the region before retiring in 1974.
WhatsApp: +86 18838072829Draglines are really interesting mining machines. "Having produced dragline buckets and rigging for over 90 years, and having produced more than 8700 dragline buckets during that time, we are continually learning," he said. ... Top 10 Coal Producing States Regions. Week Ending (10/28/23) (in Thousand Short Tons) YTD '23 YTD '22 % Change ...
WhatsApp: +86 18838072829May 21, 2020. Pictured here in 1961 is a Marion walking dragline removing overburden at a coal surface mining operation near Estevan, Saskatchewan. As can been seen in the photo, the Great West Coal Company needed to remove a large amount of material to access the high quality coal seam, and the ideal method was with a large dragline.
WhatsApp: +86 18838072829Horizontal Tandem Operation. In the horizontal tandem operation (Fig. 1), both the draglines are deployed on the same bench for a fast rate of advance and coal exposure [13, 14].The cut width taken by the draglines will be wider depending upon the operating radius of the draglines [].The leading dragline is deployed on the highwall side and provides a key cut toward the highwall, and after ...
WhatsApp: +86 18838072829Draglines remove dirt to expose coal and other minerals underneath. Some of the biggest machines can lift several hundred tons in a single scoop, and the bucket alone is about the size of a twocar garage. The machine house is 100 x 118 ft. with a 350 ft. boom and currently uses a 100 CY bucket. The PH 9020 has only been in operation since ...
WhatsApp: +86 18838072829Formed in 1992, HCRHP's focus is to provide a comfortable rest home for The Silver Spade, a BucyrusErie 1950B that was commissioned in 1965. Weighing 14 million pounds and standing 220 ft. tall while swinging a 105 cu. yd. bucket, it's the largest electric stripping shovel still doing the job it was designed to perform.
WhatsApp: +86 18838072829DESCRIPTION OF ACCIDENT. On Monday, July 26, 1999, the day shift employees began their shift at 7:00 Those employees assigned to work on the major repair of the Page dragline, Model 757, traveled to Ramp 58 to resume the ongoing tasks of replacing component parts and repairing the dragline mast.
WhatsApp: +86 18838072829This photo appeared on the cover of Coal Age Magazine's Dec. 1969 edition and carried the story of the brand new 4250W Bucyrus Erie dragline, the "Big Muskie". The machine had a 310 ft. boom, a 220 bucket and weighed in at 14000 ton. The machine began regular service in May of 1969.
WhatsApp: +86 18838072829surface coal mining from shovel mining to dragline mining. Coal India Limited (CIL), now has standardized the draglines in two sizes, namely 10/70 and 24/96 for their mines. Most mines depend on the dragline 24 hours/day, 7 ... which the machine is named a Dragline. Thus greater skill is required to control the bucket.
WhatsApp: +86 18838072829The biggest dragline to ever work in Pennsylvania, the one and only Marion 8700! Built in 1965, this ole girl swings an 85 yard drag bucket on the end of a 300' boom and weighs just over 4,600 Tons! I spotted two more draglines in this pit. And four draglines in this pit. Lucibello Heavy Equipment Photography posted five photos as part of a ...
WhatsApp: +86 18838072829They were supposed to restore the land to its "approximate original contour." This mine was started in 1974 using the "shoot [explosions] and shove" technique. The dragline was introduced in 1984. The last coal shipments were in 2016. The dragline had been helping with mine reclamation.
WhatsApp: +86 18838072829To achieve the objectives, realtime studies were done in a large mechanized open cast coal mine of India, deploying large capacity draglines for the removal of overburden. ... Kumar A (2013) Analysis of resistive force formation against the bucket action of a dragline machine. In: Proceedings of the national seminar on Dragline Mining ...
WhatsApp: +86 18838072829MACHINES Recent Advancements in Dragline Control Systems1 M. Ponnusamya,b and T. Maitya ... Coal India Limited, India Received March 24, 2016 Abstract—This paper discusses about the robust machine "Dragline", from century old techniques employed for power transmission, control and operation to the recent trends. Dragline is mostly used in
WhatsApp: +86 18838072829Coal from opencast mining. Opencast mines deploy large number of state of the art Heavy Earth Moving Machines like Draglines, Bucket Wheel Excavators and Shovels and Dumperscombination for ...
WhatsApp: +86 18838072829The "Big Muskie" was once the world's largest earth moving machine. Built in 1969 and dismantled in 1991, the Big Muskie could move 39 million pounds of earth and rock every hour, reaching coal seams 100150 feet down. Weighing nearly 12,000 tons, this dragline was 22 stories tall with a boom length of 310 feet.
WhatsApp: +86 18838072829The Big Muskie, a model built by BucyrusErie of Milwaukee, went to work uncovering coal in May 1969, and this is the 50th anniversary of its startup. The 14,000ton machine with a 220 cubic yard bucket was retired in 1991. For those of us who grew up in East Central Ohio, large strip mining machines were not uncommon.
WhatsApp: +86 18838072829There were three of the giant machines at issue: The Tiger, The Mountaineer, and The GEM of three were then in the service of the Hanna Coal Company, which by 1970, had been strip mining in Ohio for decades and was then a division of the much larger Pittsburgh Consolidation Coal Company, later known as "Consol," itself then owned by Continental Oil.
WhatsApp: +86 18838072829Draglines typically can offer a low cost waste removal mining method but are less flexible and have a higher capital cost. Truck/shovel fleets on the other hand are far more flexible with lower capital but generally higher unit costs. "The deployment of draglines and truck/shovel fleets can be varied so that competitiveness (lower costs) can ...
WhatsApp: +86 18838072829When metalurgical coal prices spiked in 2011, many coal companies set in motion investments in infrastructure, but was it too much too late? An 8 millionpound dragline crane, Mr. Tom, will be in ...
WhatsApp: +86 18838072829Although an old dragline can be an essential part of mining operations, the equipment is not without fault or maintenance needs. Bottom line is, draglines don't last forever. They are among miningclass machines with booms that reach hundreds of feet into the sky. The cost of dragline machines is somewhere between 50M and 100M. Some even ...
WhatsApp: +86 18838072829Armstrong Coal Company Page 752LR Walking Dragline #37 "Computer Room" ^^^This is a custom built room inside the Machine House of the dragline and it's the "Brains" of the machine. Everything is monitored from in here. Everything. Armstrong Coal Company Page 752 Walking Dragline The second dragline is just slightly smaller than the 752LR.
WhatsApp: +86 18838072829Once the overburden is removed coal is extracted from the 30'+ thick Mammoth coal vein using the same machine. The freshly mined coal is then loaded into Wabco 120 ton haul trucks by a Cat 992C loader. Finally, the trucks transport the coal to a stockpile at the Jeddo #8 Preparation Plant. The BucyrusErie 1450 Dragline, a 65 cubic yard ...
WhatsApp: +86 18838072829By Donna Schmidt, Field Editor. A recently restored Page 757 dragline sits on the assembly area at NA Coal's Cabot Marshall mine in Texas. After making the move from Wyoming and being fully restored with many upgrades, the new dragline, Carmen, began production in January. It is not every day that a dragline changes hands and moves from one ...
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