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Coarse crushing is the first stage of material crushing. It uses mechanical external force to crush large pieces of material (such as ore and rock) into medium size, usually as a pre-process for medium or fine crushing. Common equipment for coarse crushing includes jaw crusher, gyratory crusher, etc., which are characterized by strong processing capacity and low crushing ratio. They are suitable for processing original large pieces of material in mines, quarries and other scenes. Whether the coarse crushing equipment is a jaw crusher or a gyratory crusher depends mainly on specific needs and scenes.

 

1. Scope of application and performance comparison

 

Jaw crusher: Jaw crusher is suitable for small and medium-sized sand and gravel plants, quarries, etc., and is not easy to block when processing ores with high moisture and high viscosity. It has a simple structure, low manufacturing cost and convenient maintenance.

 

Gyratory crusher: Gyratory crusher has a complex structure, a high body and a large volume. It is suitable for large-scale ore dressing plants, can operate continuously, has high production efficiency, works smoothly, and is suitable for processing materials of various hardness. It has a large crushing ratio and uniform discharge particle size, but it has a complex structure, high manufacturing cost and complex maintenance.

 

2. Comparison of processing capacity and energy consumption

 

Jaw crusher: low processing capacity, single machine output is about 50-2000 tons/hour. Due to its non-continuous extrusion crushing method, the energy consumption is high, suitable for small-scale production.

Gyratory crusher: high processing capacity, single machine output can reach 8880 tons/hour. Its continuous operation mode makes the energy consumption low, suitable for large-scale production.

 

3. Handling different input and output particle sizes

 

Jaw crusher: strict requirements on feed particle size, the size of raw materials must be within the specified range. After coarse crushing by jaw crusher, the particles are mostly flat, sharp or triangular needle-like particles, generally more than 20%, and the product particle shape is not good.

 

Gyratory crusher: large feed particle size, small discharge particle size, uniform particle size, low content of needle-like particles, generally less than 10%.

 

Luoyang Dahua Heavy Industry Science and Technology Co., Ltd.is a direct-selling manufacturer integrating R&D, production, sales and service. It provides various types of mining crushing equipment. Its high quality is more reliable. It optimizes the combination of various types of equipment and tailors supporting equipment and construction plans to meet different process requirements. It serves you in equipment selection, site inspection, equipment manufacturing, installation, commissioning, delivery and use.