What is primary crushing? How to choose the right primary crushing equipment?
Crushing equipment is mainly used to process natural rocks, various ores and large pieces of soft, medium and high hardness materials into stones of different specifications. The crushing process is divided into primary coarse crushing, secondary medium crushing and tertiary fine crushing.
Crushing equipment is mainly used to process natural rocks, various ores and large pieces of soft, medium and high hardness materials into stones of different specifications. The crushing process is divided into primary coarse crushing, secondary medium crushing and tertiary fine crushing. Primary crushing equipment generally refers to crushers with larger feed particle sizes. Usually, the main choices for primary crushers include jaw crushers and heavy hammer crushers. The selection of specific equipment should be considered from many aspects, such as material properties, production needs and investment budget.
1. Jaw crusher
Equipment performance and maintenance cost:
Feed size: ≤1400mm
Processing capacity: 15-1500t/h
The crushing chamber has a simple structure and low maintenance cost. The discharge port is easy to adjust and can be adjusted by adding or removing pads. It is easy to operate and is suitable for large production lines. It can handle larger pieces of material. Due to its large crushing ratio, wear resistance and low energy consumption, it is often used in the coarse crushing stage. However, the movable jaw consumes power in the non-working stroke, which is prone to over-crushing and easy to clog when handling sticky materials.
Material hardness:
Jaw crusher is suitable for processing materials with higher hardness, such as large pieces of hard rock. Its working mode is driven extrusion type, which is suitable for the coarse crushing stage.
Finished product requirements:
The jaw crusher has a high content of needle flakes in the output, and needs to be shaped with other equipment. It usually needs to be used in conjunction with other equipment (such as impact crusher, cone crusher).
2. Heavy hammer crusher
Equipment performance and maintenance cost:
Feed size: ≤1600mm
Processing capacity: 100-3000t/h
The PCS series hammer crusher produced by our company has a simpler structure, small footprint, and convenient daily maintenance. The hammer crusher has a large crushing ratio, high production efficiency, can crush wet materials, and is not affected by rainy days. It is easy to operate. The hammer head is more wear-resistant after upgrading, but it still has disadvantages such as frequent hammer head compared to the jaw crusher.
Material hardness:
Hammer crusher is more suitable for processing materials with lower hardness, such as limestone, bluestone and coal gangue. Its working principle is to crush by the impact of the hammer head, which is suitable for medium-hard or soft materials.
Finished product requirements:
The hammer crusher adopts mature production technology, which can realize one-time feeding and forming. The finished product particle size is relatively uniform, and the finished material can be adjusted according to demand. There are complete specifications of coarse, medium and fine. The crushed finished product has no flakes, no smooth body, and multiple angles and edges to ensure compressive strength. It is especially suitable for highways, construction and large-scale engineering materials.
What price range is the most suitable for primary crushing equipment?
For primary crushing equipment, the price varies, usually from tens of thousands to millions. In the use of mining equipment, due to its large output value per unit time, the stability of the machine is particularly important. Any minor failure will cause a lot of economic losses to the factory. Dongping Kaiyuan Machinery Factory has relied on its strong production and manufacturing capabilities, extremely strict quality control and excellent engineering team for many years. The product processing precision is high. After more than 30 years of market polishing, it has established a good quality reputation. If you want to know the specific price of primary crushing equipment, please call or consult online, leave a message, Kaiyuan Machinery will send professionals to configure a suitable factory construction plan for you according to your specific needs and quote.