Stone Crushing Industry
Crushed stone is a major raw material used in construction, agriculture, and industries with complex chemical and metallurgical processes. Material produced by tertiary stone crusher gives an excellent result in strength and quality by additional cohesiveness of cement mortar, paints and other products.
Major rock types processed by the crushed stone industry include limestone, granite, dolomite, traprock, sandstone, quartz, and quartzite. Minor types include calcareous marl, marble, shell, and slate.
Stone Crushing Process
Techniques used for stone production vary with the nature and location of the deposit. Processing operations may include crushing, screening, size classification, material handling and storage operations. Crushing is the primary and integral stage in stone processing operation. Stone crushing process involves several stages according to final products requirements, such as primary crushing, secondary crushing and tertiary crushing.
The feeder or screens separate large boulders from finer rocks that do not require primary crushing, thus reducing the load to the primary crusher. The stone that is too large to pass through the top deck of the scalping screen is processed in the secondary crusher. The output from the secondary crusher and the throughs from the secondary screen are transported by conveyor to the tertiary circuit, which includes a sizing screen and a tertiary crusher.
Mini Stone Crusher Machine
Stone crushers are commonly used on construction sites and in stone quarries to crush large stones into smaller pieces. Crushed stone has a variety of purposes but is often used to make level surfaces or manufactured sand for construction applications.
Jaw crushers crush rock by closing two walls against the large stones several times. Impact crushers are working by rock-on-rock technique and often used as secondary crushers, which has excellent performance and high efficiency in hard stone crushing operation. Cone crushers squeeze rock through spinning grinders.