Typically, the initial crushing stage is completed using either gyratory crushers or jaw crushers. It is often the case that there will be only one crusher installed, and this will be referred to as the ‘Primary Crusher’. Cone crushers are typically used for 2nd, 3rd & 4th stage crushing steps (although not always).
● Gyratory Crushers
The difference between gyratory crusher and a jaw crusher
Gyratory crusher and jaw crusher (jaw crusher) are both common crushing equipment, but they are significantly different in many aspects. Here are their main differences:
Scope of application: Gyratory crusher is mostly used in very large mineral processing plants because of its large volume and high output, sometimes even more than 2 times higher than the output of jaw crusher. In general, small mineral processing plants and quarries mostly use jaw crushers as coarse crushing equipment.
Crushing principle and effect: The gyratory crusher adopts the principle of laminated crushing between materials. The crushing process is carried out continuously along the annular crushing cavity. It has a large crushing ratio, high production efficiency, stable operation, and uniform product particle size. The jaw crusher uses the squeezing action of the movable jaw plate and the static jaw plate to complete the crushing. The crushed materials are mostly flat, sharp, or triangular needle-shaped particles, and the product particle shape may not be as good as that of the gyratory crusher. good.
Feeding and discharging: The feeding particle size of the gyratory crusher is large, the discharging particle size is small and uniform, and the content of needle-shaped particles is small. The raw materials can be poured directly into the feed port from the transportation vehicle without setting up a feeder. The jaw crusher has strict feeding particle size requirements and needs to be within the specified range. A feeder needs to be installed, and the particle shape of the materials after coarse crushing may not be ideal.
Structure and maintenance: The gyratory crusher has a complex structure, a tall body, and a large volume. It requires a taller factory building. The machine is bulky and inconvenient to transport. It has low operating costs and long maintenance intervals, but it is difficult to replace wearing parts. In contrast, the structure of the jaw crusher is relatively simple, the daily operation and maintenance methods are simple, and the replacement of wearing parts is easy.
Environmental protection effect: The gyratory crusher adopts an all-around closed design, with less dust spillage during operation and a good environmental protection effect. The jaw crusher has a semi-enclosed structure, and a large amount of dust is emitted during operation, which may lead to unsatisfactory operating conditions and serious environmental pollution.
In summary, there are obvious differences between gyratory crushers and jaw crushers in terms of application range, crushing principle and effect, feeding and discharge, structure and maintenance, and environmental protection effects. Which equipment to choose should be comprehensively considered based on factors such as specific work scenarios, material characteristics, production needs, and environmental protection requirements.
The difference between a gyratory crusher and single cylinder cone crusher
Crushing cavity shape: The two cones of the gyratory crusher are uniquely designed. The moving cone is an upright truncated cone, while the fixed cone is an inverted truncated cone. This design is mainly to increase the feeding port and meet the crushing needs of large-grained materials. In contrast, the two cones of the single-cylinder cone crusher are both gently inclined upright truncated cones, and there is a parallel crushing area between the two cones to better control the product particle size.
Moving cone suspension method: The moving cone of the gyratory crusher is suspended on the beam of the frame. This design method is relatively simple. The moving cone of the single-cylinder cone crusher is supported by spherical bearings, ensuring the stability of the moving cone and crushing efficiency.
Discharge opening adjustment method: The gyratory crusher adjusts the size of the discharge opening by raising or lowering the moving cone. This adjustment method is simple and direct. The single-cylinder cone crusher uses a hydraulic cylinder placed at the center bottom of the base to push the main shaft and move the cone up or down to adjust the size of the discharge opening. This method is more precise and easy to control.
Crushing capacity and use: Gyratory crushers are usually used for coarse crushed stone. Their production capacity is large and they are suitable for large sand and gravel plants or mines. The single-cylinder cone crusher is mostly used in relatively small sand and gravel plants or construction sites as a medium and fine crushing machine in the production line.
To sum up, there are obvious differences between a gyratory crusher and a single-cylinder cone crusher in terms of crushing cavity shape, moving cone suspension method, discharge port adjustment method, crushing capacity, and purpose. These differences make them have their own advantages and applicability in different scenarios and needs. When selecting, comprehensive considerations need to be made based on specific crushing materials, particle size requirements, production scale, and other factors.
Advantages of gyratory crusher:
Gyratory crusher is an efficient crushing equipment widely used in mining, metallurgy, construction, and other fields. Its advantages are mainly reflected in the following aspects:
Powerful crushing capacity: The gyratory crusher has a powerful crushing capacity and can handle materials of various hardnesses with finer particle sizes. Its special design results in a larger crushing ratio and can more effectively break large materials into small particles to meet the diverse needs of users.
Efficient and stable: The gyratory crusher adopts advanced design concepts and manufacturing processes to make the crushing process more efficient and stable. It has a compact structure, is easy to maintain and operate, can operate stably for a long time, reduces failure rates and downtime, and saves energy costs for enterprises.
Intelligent operation: The gyratory crusher is equipped with an intelligent control system, which can control and monitor all aspects of crushing to achieve automated operation. This not only simplifies the operation process, reduces maintenance and repair costs, but also increases the start-up time and ensures the stability and high output of the crusher.
Environmental protection and energy saving: The gyratory crusher adopts a closed crushing method, which reduces dust and noise pollution. At the same time, its energy consumption is low, which can save energy costs for enterprises. In addition, the gyratory crusher is also equipped with a dust removal system and silencer equipment, which further reduces dust and noise emissions and meets environmental protection requirements.
Strong adaptability: The gyratory crusher has wide adaptability and can adapt to different material characteristics and production needs. By adjusting crushing parameters and replacing worn parts, different production requirements can be met and flexible crushing operations can be achieved.
To sum up, the gyratory crusher has the advantages of strong crushing capacity, high efficiency and stability, intelligent operation, environmental protection and energy saving, and strong adaptability. These advantages make the gyratory crusher have broad application prospects in the crushing industry and can meet the needs of different users, improve production efficiency, and reduce operating costs.
