AROUND PIT SYSTEM - bucket wheel excavator, beltwagon, conveyors...

A continuous soft rock process starts with a bucket wheel excavator.The mined material,  overburden or other material,  such as lignite, is then transported from the pit on conveyors. Overburden material  is typically dumped  on the other side of the pit across from the mine face. LIMING has a long history as a leading supplier  of soft rock mining systems. We supply a multitude of different machines, with various purposes  and capabilities  to facilitate the continuous process. Our engineering and mining experts design the correct system for each specific mine, using one of the two following techniques.

AROUND THE PIT SYSTEM

In this technique,  the conveyor  system transports the material  along three sides of the pit. Because each mine operation is unique, LIMING’s engineering and mining experts design the correct system for each specific operation.

The bucket wheel excavator, through an installed conveyor  system, discharges overburden into the receiving chute of a hopper  car. To minimize distance and height issues, a beltwagon can work as a mobile link to the mobile hopper  offering greater flexibility. A conveyor  system, specially adapted to the topographic conditions, transfers  the material around the pit to a crawler-mounted spreader  which discharges the waste material  in the dumping  area. LIMING’s around the pit systems:

1. Adapt to different mining and deposit conditions

2.Provide shiftable or mobile conveyors

3.Accommodate long distances between mines and dump areas

CROSS PIT SYSTEM

In this specialized system, to be used as an across the pit conveyor, the excavator extracts  overburden material  and feeds it via conveyors to a spreader.  The spreader  conveys the waste material  directly across the open pit and onto the developing dumping  area. LIMING’s cross pit systems:

1. Produce the shortest  distance and time for conveying material

2. Mines deeper reserves economically

3. Meet requirements of certain geographical conditions at the dump site

CROSS  PIT SYSTEM - bucket wheel excavator and spreader

...and spreader for continuous mining

IPCC systems

In a continuous hard rock process, drilling and blasting are still utilized. But unlike the traditional load and truck haul process, the materials transportation from the pit is continuous. The process includes in-pit crushing plants, a conveying system and spreader  to dispose of waste material  in a dumping  area.