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The History and the Development of the Crusher

  • Date Submitted: 04/28/2014 12:12 AM
  • Flesch-Kincaid Score: 37.4 
  • Words: 395
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Crushers are machines which use a metal surface to break or compress materials into small fractional chunks or denser masses. Throughout most of industrial history, the greater part of crushing and mining part of the process occurred under muscle power as the application of force concentrated in the tip of the miners pick or sledge hammer driven drill bit. Before explosives came into widespread use in bulk mining in the mid-nineteenth century, most initial ore crushing and sizing was by hand and hammers at the mine or by water powered trip hammers in the small charcoal fired smithies and iron works typical of the Renaissance through the early-to-middle industrial revolution. It was only after explosives, and later early powerful steam shovels produced large chunks of materials, chunks originally reduced by hammering in the mine before being loaded into sacks for a trip to the surface, chunks that were eventually also to lead to rails and mine railways transporting bulk aggregations that post-mine face crushing became widely necessary. With the trend of urbanized tendency is quite distinct.city and village has become more and more beautiful compared with some years ago.Longzhen as one leading mining machinery manufacturer,also as one member of society,which having sacred responsibility to help to crushing   and screening the materials of construction and other industries.In fact,Longzhen had made her contribution to the mining and industry field analyzed from the result of work among these years.   China as one biggest machinery exporting country,the advance technology usually introduced from America or German.The way   of production equipment commonly is advance technology abroad contact with the traditional experience home.Sometimes,many mining equipment supplier introduce their products may tell you their machine with the high technology introduced from the developed country when you visit their factories.In spite of the large   export amount of the Chinese...

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