Used Quarry Plant For Sale In Kenya

Stone quarrying in Kenya is a significant sector in economy development. Stone as a building material is in great and growing demand because of the booming construction industry. This is particularly so in the mechanised quarries in Jujia and elsewhere and until recently in thep roject area which serves Nairobi where geological surveys have revealed that local stone reservces are sufficient for at least the next 50 years.

The main processes in quarrying include the clearance of the overburden of soil, drilling, blasting, splitting and dresssing of stone. Most of the tools used to execute these processes are crude and poorly maintained.

Stone Quarrying Application

Stone quarrying is the multistage process by which rock is extracted from the ground and crushed to produce aggregate, which is then screened into the sizes required for immediate use, or for further processing, such as coating with bitumen to make bituminous macadam (bitmac) or asphalt.

The process begins with a detailed three-dimensional survey of the quarry face. This allows the explosives engineer to design the blast and to plot where the shot holes should be drilled so that the blast can be carried out safely and efficiently.

The following stage in quarrying operation is stone crushing. Crushing can be done in three or four stages, primary crushing, secondary crushing and tertiary crushing, in some quarries, a quaternary crushing will be applied. Crushed rock, or product, is transported along the process line on conveyor belts or down chutes.

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