Crusher applications in the construction industry

Building materials constitute the material basis of buildings and structures , along with the social production and the development of materials science and the development of human society along with the history of invention and development of materials . Road and bridge construction is an important part of civil engineering , road construction materials for roadbed, road , bridges, tunnels and other parts of the various components and structures and ultimately constitute the building materials . With the expansion of large-scale highway construction , road building materials to use and faster and faster pace of development , although the traditional building material widely used in infrastructure projects , but has become increasingly unable to meet the rapid development of highway construction on high standard engineering requirements. In contemporary road construction in concrete , steel , reinforced concrete and asphalt and asphalt concrete , although structural material is irreplaceable , and new alloy materials , organic materials, new geotextile materials, chemical building materials and various composite materials also occupy a very important position .

The solid materials are crushed materials , the internal crystal structure changes, the surface can be increased , which also increases the surface area per unit mass can be increased physical and chemical reaction rate , easy to mix uniformly , to improve homogenization effects and the drying, create favorable conditions for storage and transport . Shibang developed the production of impact crusher , hammer crusher is developed on the basis of . Impact Crusher is used in industrial production in 1924 of . And the hammer broke , are to impact energy to crush materials broken machinery, the working principle and performance of the structure , there are many similarities. State of the World 's hammer crusher rotor is rigidly connected with the use of chassis crushing blow crusher Yang holding angle . When the bulk material from the feed inlet , the first by high-speed rotation of the hammer from the bottom of the impact crusher , and was quickly thrown back plate is hammering broken, or crushed zone bounce back once again be the hammer impact , continues to repeat the process. In the round-trip on the way , the material will be between collide, generated from crushing blow . After many , many roles composite crushing counterattack if the material finer than the gap between the plate and the nutation , will be from the lower part of the discharge port cabinet ; if greater than the gap , it will be rigid hammer milling and grinding cut broken, until discharged . Thus, within the crusher crushing effect mainly the following three aspects: freedom crushing, crushing rebound , milling broken. Shanghai World state of back-breaking can fundamentally required to complete a variety of materials of different solid materials crushing requirements.