Impact crusher is a new type of high-efficiency crushing equipment, which is characterized by small size, simple structure, large crushing ratio (up to 40), low energy consumption, large capacity, uniform particle size, and selective crushing effect, is a promising device. But the biggest drawback of the impact crusher board hammer and counterattack plate especially easy to wear, especially crushing hard ore, the wear and tear is more serious and require frequent replacement. Due to the emergence of some of the wear-resistant materials, has been applied in some metal concentrator.
Impact 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 the productive forces, jaw crusher has been unable to meet the technology needs of broken, so jaw broken machine based on design Impact Crusher.
According to statistics, in the highway construction in the provinces and cities have been using the Hard Impact Crusher preparation equipment as pavement stone crushing compressive strength of 300MPa basalt, andesite and other hard materials and gradation 19.6mm below stone. The percentage content of the flakiness is less than 10%. Currently, there are over 400 units in use around, not only to solve a problem in the highway construction, but also blocking imports.
Overall, the future direction of development of the domestic and international impact crusher is mainly manifested in the following aspects:
First, the need for the existing impact crusher structure to improve, improve the ease of maintenance of the hard ore crushing capacity and equipment Crusher, its main focus on the board hammer, rotor structural improvements in order to board hammer replacement and installation card; counterattack rack (crusher cavity shaped), structure optimization, to improve once the ore crushing rate and energy utilization.
Second, the research and development of a new type of high wear-resistant high toughness plate hammer material to improve the life of the board hammer, and improve productivity.
Third, the application of modern mechatronics technology and modern control methods (such as hydraulic technology, electronic technology), and constantly improve the degree of automation of the Impact Crusher, reduce labor intensity, improve productivity. For example: the application of modern computer-aided design to optimize the counterattack rack structure parameters to improve the utilization of energy and ore crushing rate.
Fourth, in order to adapt to the needs of the market and customers, the impact crusher forward seriation normalized, large-scale development.
Fifth, adhere to technological innovation, and gradually get rid of the single product introduction and imitation. Improve Impact Crusher, independent research and development of knowledge.
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