摘要：Currently, two types of handling machines are mainly used on
coal open pit mines in Kuzbass, characterized by complex structural
deposits: mechanical (rope) and hydraulic (backhoe) shovels. Moreover,
both types of equipment are supplied to the quarries: mechanical shovels
are purchased, as a rule, powerful with a bucket capacity up to 56 m3,
backhoes – small and medium-size models with a bucket capacity of 2.8-
14 m3. On the other hand, it is common to divide the areas of equipment
use in the open pit on complex-structured deposits into a coalless (outside
the strata of coalbeds) and coal-bearing (actually a series of beds, including
coal strata and rock interbeds). The use of these equipment types in both
design and industrial practice is observed in both zones. At the same time,
it is known that each of these zones has different conditions for the
efficient operation of excavation machines. The seams, therefore, do not
complicate the coalless zone when working in it, favorable conditions are
provided for the excavator: the constant height of the bench, which is
necessary for the full filling of the bucket for one scoop, the constant width
of the panel and the length of the front of the work. In these conditions, the
maximum productivity of the excavator is ensured.
其他摘要：Currently, two types of handling machines are mainly used on coal open pit mines in Kuzbass, characterized by complex structural deposits: mechanical (rope) and hydraulic (backhoe) shovels. Moreover, both types of equipment are supplied to the quarries: mechanical shovels are purchased, as a rule, powerful with a bucket capacity up to 56 m3, backhoes – small and medium-size models with a bucket capacity of 2.8-14 m3. On the other hand, it is common to divide the areas of equipment use in the open pit on complex-structured deposits into a coalless (outside the strata of coalbeds) and coal-bearing (actually a series of beds, including coal strata and rock interbeds). The use of these equipment types in both design and industrial practice is observed in both zones. At the same time, it is known that each of these zones has different conditions for the efficient operation of excavation machines. The seams, therefore, do not complicate the coalless zone when working in it, favorable conditions are provided for the excavator: the constant height of the bench, which is necessary for the full filling of the bucket for one scoop, the constant width of the panel and the length of the front of the work. In these conditions, the maximum productivity of the excavator is ensured.
