Artical

Rock Quarry Operation

A rock quarry is one type of mine not located underground. The quarry is usually in an area known to be abundant in particular rocks or formations of rocks. The terms "rock quarry" and "gravel pit" are often confused or used interchangeably.

Mining of most rocks is for use in construction projects. Rock quarries are located around the globe. A quarry usually has a heavy concentration of one particular type of rock like limestone, slate, granite or marble.

A rock mine is much easier to excavate than other types of mines. Rock mines begin as shallow pits and grow larger as the rock is withdrawn. These mines are mostly above ground level and are commonly about 60 feet deep. While quarries normally yield rocks, they also contain minerals.

Large Scale Quarry Machine

The extracted rock and stone materials will be conveyed to quarry processing equipment. Quarrying operations generally involve crushing, screening, size classification, material handling and processing operations etc. There are many small, medium and large scale quarry machine for sale all over the world.

We also develope complete series of large scale quarry machine for sale including extraction plant, crushing equipment, grinding mill, screening machine, belt conveyor, washing plant etc. The large scale quarry machine capacity ranges from 500tph to 2000tph, and can be processed for 24 hours. It has the benefits of large thoughput, high efficiency, cost-effective, high investment return ratio.

Quarry Crushing Production 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.