The direction of large-scale development, including several aspects of large transmission capacity and large single length. Now the world’s longest water transport device has more than 400 kilometers in length, the longest single belt conveyor length is close to 15 km, and the two cities have emerged link belt conveyor track. The world’s major developed countries are also being developed with a long-distance, large- volume continuous conveyor conveying capacity, structural development to a higher performance, functionality and better direction. Can in extreme temperatures and corrosive, radioactive and other work environments and can deliver explosive, hot, sticky materials such as conveyors.Ministry of conveyor shaft. Bars can be living rough forging stock, mechanical and physical properties of the material in the shaft shall hell GB/T699–1999 45 # steel requirements. # 45 shaft forgings by normalizing or annealing. Besides, our company also produces different kinds of breakers, mills, gringders, dryers, feeders, kilns, and etc..And does not allow cracks and white spots; delay defect spacing should be greater than 100mm; in the area not more than 3 consent. Drum should use potassium -based grease lubrication, its performance requirements should be consistent with the provisions of potassium grease GB/T7324 a 2010. The drum and the drum is plastic, it should be simple skin surface layer and with a solid, the surface should be smooth and should not affect the use of bright scar, blistering, lack of plastic and cracks. Other cladding layer should be designed to meet the requirements of belt conveyor technical documents. Other parts shall comply with the design drawings and technical documents.Transmission lines can follow the curve of its space to be arranged, depending on the arrangement of horizontal and vertical lines of big dip length ratio, to carry on the screw conveyor design, not only by human design, shorten the time savings, but also better to reduce the...