Complete strategy for crusher classification and equipment configuration of sand and gravel production line

Crushers play a key role in sand and gravel production, and their types are diverse and widely used.

From the point of view of the working principle, the crusher is mainly divided into extrusion type and impact type.Extrusion crushers include jaw, rotary and cone crushers, which are suitable for crushing materials with high hardness and strong abrasive properties, such as iron ore, granite and other metal ores and hard rocks. They rely on strong extrusion force to crush materials to ensure production efficiency and finished product quality.Impact crushers are represented by impact crushers, vertical shaft impact crushers, and hammer crushers. They have a significant crushing effect on rocks with medium or low hardness and abrasive properties such as limestone and dolomite. The material is broken by impact, which can produce products with regular shapes and reasonable grades.

In the equipment configuration of the gravel production line：
Coarse crushing link: Jaw crusher or rotary crusher is often used.Jaw crusher is widely used, the price is close to the people, the operation is simple, suitable for small and medium-scale production lines, the hourly output can reach less than 1,000 tons; rotary crusher has a large processing capacity, and the hourly output of a single machine exceeds 2,000 tons, which is suitable for large-scale sand and gravel production, and can provide suitable coarse materials for subsequent processing.Some medium and low hardness materials can also be used in large-scale impact crushers, which have a large crushing ratio and low energy consumption.

Medium and fine breaking stage: Cone crusher is suitable for high-hardness rocks, using the rolling mortar wall to move to the crushing wall to squeeze the material, high production efficiency and strong stability; impact crusher has good crushing effect on rocks below medium hardness, which can make the product have a beautiful particle shape, reduce the subsequent shaping workload, and meet the needs of different finished product particle sizes.

Sand making process: Impact breaking is a popular choice for sand making. It imitates the principle of natural sand formation. The finished sand has a rounded grain shape and excellent grading. It meets the standards of Class I construction sand, and can also shape the stone.The rod mill is suitable for special projects with high requirements for the roundness and grading of sand; the roller mill is commonly used in small production lines or occasions with strict requirements for the particle size of finished products. It can produce uniform fine materials to meet diverse market needs and help sand and gravel production lines efficiently produce high-quality sand and gravel aggregates.