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Bucyrus DBT plow system at Jinhuagong Mine sets new monthly production record of 100,031 tonnes

Monday, October 1st, 2007

A fully automated plow system supplied by Bucyrus DBT and commissioned at Jinhuagong Mine in China in 2005 is setting production records. Established in 1956, Jinhuagong Coal Mine is located 12 km west of Datong in the north of China. It had an annual output of 4.25 million tonnes in 2005 and is a key coal mine of Datong Coal Mine Group. The mine produces high-quality steam coal.
With an uptime of over 95%, the plow system – a DBT Gleithobel® GH 38 with 800 kW (1,080 hp) of cutting power and equipped with the PF 3/822 plow running track – achieved the best shift output of 3,760 tonnes in July 2007. The best daily output reached 5,700 tonnes. These are both new mine records. In July, the plow team safely mined 100,031 tonnes of raw coal, a new record for the plow working team at this mine. This achievement is outstanding given that the longwall is operating in very hard coal. The face is 200 meters long and the seam varies in thickness from 1.35 m to 1.5 m.
In addition to the Gleithobel® plow, the longwall system comprises the state-of-the-art DBT PM 4 shield control system and plow control technology for complete automation, requiring no operators at the face; a big boost for increased mine safety. The plow is driven by two 400 kW motors via a 38mm plow chain. The conveying system, speed of plow, depth of cut and shield support controls are all tailored to Jinhuagong Mine conditions to maximize performance and safety. DBT tailors all of its system to the specific requirements of each underground operation, using its decade-long experienced engineering workforce and its countless references around the globe, including eight fully automated plow systems sold to China since 1999.

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