In the sand and stone aggregate production line, coarse crushing is often an indispensable link. In this link, the rock materials mined by blasting are processed by coarse crusher to process the materials into semi-finished products with smaller size, and then processed by conveyor, sieve machine, medium crushing equipment, and fine crushing equipment, etc., and finally produced into all kinds of sand and stone aggregate. It can be said that coarse crushing is the first link in the production of gravel aggregate, and the quality of coarse crushing directly affects the following production, so the selection of coarse crushing equipment is very important.
In the selection of coarse crushing equipment, it is necessary to consider the type of processed materials, the hardness and abrasiveness of different rock materials, in addition to considering production line capacity, production planning and other factors.
At present, the main equipment used for coarse crushing is gyratory crusher, impact crusher, and jaw crusher.
Gyratory crusher
Gyratory crusher belongs to large mechanical equipment, its crushing is continuous crushing, with high efficiency, large capacity, large crushing ratio, and generally used in the annual output of more than one million tons of large sand aggregate production line. It is the ideal equipment to deal with granite and other materials with high hardness. The price of gyratory crusher is high, and the cycle for delivery and installation is long, so it is suitable for large-scale production projects with long-term planning.
Impact crusher
Impact crusher is generally used in the medium crushing link, in some cases can also be used for coarse crushing, such as the use of impact crusher to deal with low abrasive material like limestone, the product size is better, but the field of application is narrow.
Jaw crusher
Jaw crusher is welcomed by customers because of its superior performance. Since its invention, it has been used in many fields such as mining, building materials, highway, railway and water conservancy construction. It is the most widely used coarse crushing equipment at present.
Jaw crusher is composed of six parts, respectively, the frame, the transmission part (motor, flywheel, pulley, eccentric shaft), the crushing part (moving jaw, moving jaw plate, fixed jaw plate), the safety device (toggle plate, spring rod part), the adjustment part, and lubrication device.
Luoyang Dahua has rich experience in manufacturing crusher machine, and the products are sold to France, Japan, Indonesia and other 20 countries. If you want to know more, please leave message to us.