Mianyang (Mianyang), prefecture-level city in Sichuan Province, located in the northwest of Sichuan Basin, called "Fucheng," "Mianzhou", is world-renowned for the great Romantic poets - Li Bai's hometown. Since 201 BC Han emperor set Fu County, more than 2200 years of history of the city, has always been for the county, the state capital, the city is located at the south due to the Mianshan named "Mianyang." Mianyang is the State Council approved the construction of China's only science and technology city, China's major defense research and production base in the electronics industry, the central city of Chengdu-Chongqing Economic Zone cotton, won the United Nations to improve the living environment Award for Best Practices (Dubai Award), National Civilized City and other honors. Cobblestone Sand is a production building with sand, stone and special equipment. Sandy uniform particle size, high compressive strength, than natural sand, manufactured sand hammer to break more in line with the requirements of a high standard building sand; it is a jaw crusher, PCX Sand, heavy shaker and efficient sand washing machine, and use become a line connecting belt. The production line using high-speed rotary wheel thrown the stone to 76m / s line speed thrown on collision resistant liner, forming a stone at stone, stone crushing principle blacksmith. To ensure that the whole process discharge smoothly, reliable, energy efficient, saving 50% than conventional equipment. Sand pebbles ore fed into the feed inlet and slide down the sieve, sieve ore Jibei carbide hammer falls during high-speed rotation of the rotor on the crushed, and at high speed tangentially toward the first piece of the cavity liner, liner hit back to turn ore and other minerals and then thrown behind the rotor collide, the ore continues to be broken, the material into the crushing chamber and the hammer of the first rotor impact crusher, and then continue into the second crushing cavity crushing, crushing materials in the crushing cavity formed not only broken material, but also completed a cavity plastic materials until the desired particle size becomes, finally forming sand discharged from the discharge port. From the foregoing, pebble crusher working principle is to use stone at stone crushing ore, selective crushing effect, and broken products more uniform particle size, shape, most of the stone cube. For bridge construction, high-speed roads, docks, airports have a wide range of construction applications. http://www.mdzhishaji.com/ http://www.zzmdks.com/ http://www.mdssx.com