The development history of jaw crusher
Americans EW Blake (Black) designed and manufactured the world's first jaw crusher. Its structure in the form of dual-elbow-plate (simple oscillating type) jaw crusher. The crushing machine is the modern steam engine and electrical power machinery, etc., after a gradual improvement and extension have created. Appeared in 1806 with the steam-driven roller crusher; in 1858, the United States, Blake invented the broken rock jaw crusher;in 1878, the United States has developed with continuous action cycles crusher broken, its production efficiency is higher than for intermittent Broken action jaw crusher; in 1895, the United States, William invented a low energy http://www.grindingmill.org/products/crushing/pfw-impact-crusher.html impact crusher. Americans EW Blake (Black) designed and manufactured the world's firstjaw crusher. Its structure in the form of dual-elbow-plate (simple oscillating type) jaw crusher. As the jaw crusher has a simple structure, easy to manufacture, reliable operation, convenient maintenance and the advantages of smaller size and height. Is still widely used in crushing hard, medium hard, soft ores and a variety of materials, such as various minerals, solvents, slag, building stone, marble and so on.Commonly used jaw crusher crushing machine is 4 ~ 6, and small jaw crusher can sometimes reach 10. Large and medium-sized crusher feed force of up to 1000 ~ 2000mm, size of their products up to 20 ~ 250mm, small crusher and a new crushing using jaw crusher products can be derived from a number of more detailed. Jaw Crusher can be used for primary crushing operations can also be used in fine job. In particular, be used for underground crushing operations and in small mobile crusher unit. Jaw crusher works by means of the activities of jaw plate periodically close to or away from fixed jaw plate of the swing movement into the crushing chamber so that the material be squeezed, splitting, bending and impact the role of fragmentation. Broken