Impact crusher is widely applied in mining, transportation, energy, construction and chemical industry. They are ideal choice for crushing and screening.This impact crusher features reasonable structure, high productivity, easy operation and maintenance and safe performance.
Crusher's development history can be traced back to the 1850s, when the world's first jaw crusher was born in the United States, and soon after with the development of productive forces, jaw crusher has been broken can not meet the technology needs, so based on jaw crusher, people had designed the impact crusher.
More well-known impact crusher of the abroad company, Japan's Kawasaki Heavy Industries, the German company of HKD, Spain Rover firms and so on. But impact crusher relatively late development in China, to the 1950s, China has really broken machine. Thus, China's crushing and screening equipment, mostly 50's came out. In the 1980s, we made impact crusher is limited to processing the hard materials of coal and limestone. Until the late 1980s China has introduced KHD-type hard rock impact crusher, it filled a gap-free of high hardness crusher. But the technology was behind twenty years to abroad.
Overall, the mainly performances of home and abroad impact crusher in the future development are:
1: research and develop the high toughness, high wear-resistant materials to improve the new plate hammer's life and improve productivity.
2: In order to meet market and customer needs, impact crusher series has to be standardized, large-scale development.
3: insist on technology innovation, and gradually get rid of the product of a single introduction and imitation.
Contrast Between Gyratory Breaker and Jaw Breaker
jaw crusher is widely used in road construction engineering. Jaw crusher is the first step of crushing production line. It mainly has such features, as big crushing ratio, uniform granularity of product, simple structure, reliable operation, easy maintenance, low operating cost, etc.
The working principle of Gyratory crusher is using the gyratory sports in casing cone cavity of crushing cone to produce extrusion, fracturing and bending role to materials. Gyratory crusher is a large crushing machine used for crushing various hardness ore or rock, also called composite crusher.
So what are their own characteristics of Gyratory crusher and jaw crusher?
1. Gyratory crusher can feed ore materials from any directions. it can be fed by tilting cart directly. It does not need ore storage bin and feeding equipment; but Jaw crusher need to feed ore uniformly, so it requires ore storage bin and feeding equipment.
2. Gyratory crusher start up easily. When large jaw crusher sart up, it needs to use auxiliary tools to turn the heavy flywheel.
3. Gyratory crusher has larger crushing ratio, product size is homogeneous, less flake products. Jaw crusher has strong capacity, especially suitable for primary crush.
Jaw crusher is the most common and oldest machinery. The followed crushing machine is proper improved product for special need. All of them have their own advantages, but applicable range also has been reduced!
4. Gyratory crusher works continuously, so it works smoothly,oscillation is lighter. It has less influence to base and buildings. Therefore the weight of its infrastructure is smaller, usually it’s 2 ~ 3 times of machine, while the infrastructure of jaw crusher is 5 ~ 10 times of machine weight.
5. Gyratory crusher has crushed and broken off effect for ore, because the compression strength limit of ore is 10 ~ 15 times bigger than it’s bending strength limit, so the energy consumption of Gyratory crusher for crushing 1t ore is 0.5 ~ 1.2 times smaller than that of Jaw crusher with the same feed opening.
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