Stone Crushing Equipment For Quarry

2019-05-16 14:36:49

Stone quarry crushing equipment for sale are commonly used on construction sites and in stone quarries to crush large stones into smaller pieces. There are several different types of crushers applied, such as sand making machine, jaw crusher, impact crusher, cone crusher etc., sometimes multiple crushers are used to achieve the desired size. Jaw crushers crush rock by closing two walls against the large stones several times. Roller crushers are often used as secondary crushers; rocks are fed between two rollers that crush the rock. Cone crushers squeeze rock through spinning grinders.

Stone Quarry Operation

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 to make aggregate or asphalt.

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

Stone Quarry Crushing Plant

The primary crusher is fed via a chute and vibrating feeder. Primary crushing is usually by a jaw crusher consisting of a heavy metal plate which moves backwards and forwards against a fixed plate. The output from the primary crusher is conveyed onto the primary stockpile from which the secondary crusher is fed.

Secondary, tertiary and quaternary crushers are generally gyratory, or cone crusher. Each stage of crushing produces progressively smaller sized stones. In order to produce a usable end-product, the crushed rock has to be screened into various size categories. Crushed and screened rock is called aggregate.

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