Gyratory crushers are used in mining and aggregate industries for primary crushing of large materials and are often used in large scale operations. The working principles of gyratory crushing are different from those of the other types of crushers; it is a process of progressive compression which allows for large feed sizes. The combination of these crushers with the contemporary mobile structures like concasseur mobile (mobile crusher) expands their utilization possibilities. This paper aims to describe the working principles and mechanisms of gyratory crushers with special reference to the concasseur mobile application.
Basic Working Principle
Gyradisc crushers are similar to cone crushers with the difference being that the ore is compressed between a conical head and a crusher bowl which is circular in shape. The movement of the head generates a force that is capable of pulverizing the material while the larger cone angle assists in managing the material as it goes through the crusher.
Design and Operation
The main parts of a gyratory crusher are the large central vertical shaft and the concave liners (fixed) mounted on the main frame of the crusher. The ore is fed into the top of the crusher and drops over a mantle that is inside the rigid shell of the crusher and rotates, the ore is crushed between the mantle and liners as it moves downwards. The size of the mantle and concave defines the degree of the ore crushing before it is fed to the crusher.
Mobile crusher systems
The use of a gyratory crusher, or concasseur giratoire, in conjunction with a concasseur mobile system is the combination of the efficiency of gyratory crushing with the mobility of a portable system. This makes the crushing process more efficient and adaptable since it enables mining operations to easily change the type of material being crushed or the layout of the mine without having to make major changes to the infrastructure.
The benefits of Gyratory Crushers
Gyratory crushers are preferred because they are able to handle large amounts of feed—frequently required in large mining operations where thousands of tons of material are processed daily. Their steep crushing chamber and long crushing surface ensure high performance that increases the rate of throughput of the material through the crusher.
Challenges and Solutions
Despite the benefits that gyratory crushers have, there are some drawbacks that are associated with them and these include; Gyratory crushers require large space for installation; they are difficult to maintain. However, the current designs and technological incorporations like hydraulic and electronic control systems have made it possible to operate these crushers and to check on their performance to avoid breakdowns.
This paper presents an understanding of gyratory crushing through the analysis of its mechanics. When combined with concasseur mobile units, these crushers can be further optimized to improve their performance and provide the best results for modern mining companies that need fast, versatile, and highly productive crushing equipment. This not only enhances the crushing efficiency but also cuts the operational expenses as it is more mobile and requires less fixed installations
