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Bucket chain excavator, human for size comparison. A bucket chain excavator (BCE) is a piece of heavy equipment used in surface mining and dredging. BCEs use buckets on a revolving chain to remove large quantities of material. They are similar to bucket-wheel excavators and trenchers. Bucket chain excavators remove material from below their ...
A bucket-wheel excavator (BWE) is a large heavy equipment machine used in surface mining. Their primary function is that of a continuous digging machine in large-scale open-pit mining operations, removing thousands of tons of overburden a day.
A large dragline system used in the open pit mining industry costs approximately US$50–100 million. A typical bucket has a volume ranging from 40 to 80 cubic yards (30 to 60 cubic metres), though extremely large buckets have ranged up to 220 cubic yards (168 cubic meters). [12] The length of the boom ranges from 45 to 100 metres (148 to 328 ft).
The cutting height of the BCE's chain boom is 34 m (112 ft) to 35.5 m (116 ft), whilst its cutting depth is 31 m (102 ft) to 31.2 m (102 ft). [3] In total, the chain boom is capable of excavating a maximum capacity of 14,500 m 3 /h. [3] The buckets itself is reinforced by 5 to 10 mm steel plates to prevent deformation and wear-and-tear. [6]
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, [1] is a surface mining technique that extracts rock or minerals from the earth. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface where the overburden is relatively thin. In contrast, deeper mineral ...
Bucket excavator in the South Pit section, in 2007 Figure 2-2 Conveyor belts used for transporting overburden, in May 2018 Figure 1-4 East Pit III section, August 2022 Figure 2-3 Piling of overburden with a stacker in the East Pit II section, May 2019 Figure 2-4 Bucket-chain dredger near East Pit II, May 2019 Figure 2-6
The Mexican Mining Chamber (Camimex) opposes the ban on open-pit mining, saying such a prohibition would cause a 1% contraction in the country's GDP and threaten some 200,000 jobs.
Open-pit mines (102 P) Q. Quarrying (2 C, ... Surface mining in the United Kingdom (2 C) Pages in category "Surface mining" ... Type Es 3750 bucket chain excavator