Can limestone be used to make sand and gravel aggregates?
The main component of limestone is calcium carbonate, which is widely used in building materials and industrial raw materials. Limestone powder has a wide range of uses, and limestone is also an excellent raw material for sand and gravel aggregates.
The Mohs hardness of limestone is 3, which is a medium and low hardness material. For the production of sand and gravel aggregate, the configuration of "jaw crusher + impact crusher + sand making machine" can be directly selected.
Among them, the jaw crusher is the first crushing link, which is used for the coarse crushing of limestone. The large limestone is crushed to a medium particle size at one time. The size of the jaw crusher is generally 10-30 cm.
Counterattack crushing is the second crushing link, which is used for medium and fine crushing of limestone, and can further crush the coarsely crushed materials. After the impact crushing process, it can directly produce 0.5, 1-2, 1-3, 2-4, 3-8 and other crushed stone with different specifications.
After impact breaking, a sand machine can be added, which can finely crush and shape 0.5, 1-2 stones, melon seeds and leftovers, and produce 1-5mm coarse sand, medium sand and fine sand, which can be used as machine-made sand instead of natural sand. It is used in projects such as concrete batching plants, dry-mixed mortar, building houses, and paving.
This is the entire production process of limestone-made sand and gravel aggregates. In addition to the main engine, it also needs ancillary equipment such as vibrating feeders, vibrating screens, and sand washing machines. We can provide a complete set of process design and solutions.
Description: In addition to limestone, granite, basalt, river pebbles, cobblestone, diabase, bluestone and other materials are also excellent raw materials for making sand and gravel aggregates, and even tailings, slag, and construction waste can also be used as raw materials for making sand and gravel aggregates.
Different production factors such as material hardness, incoming and outgoing material size, output, etc., determine the different production line configuration plans and equipment selection. Please submit specific requirements to online customer service. We can design a complete set of equipment selection and configuration for you free of charge, and make detailed quotations ,For your reference.