The Brief Introduction of Screw Conveyor Transport

Screw currently in use , although its working principle has not changed, but in order to increase its transmission capacity in the design of the structure has been greatly improved , and accumulated a lot of practical experience. In order to improve the corrosion resistance of the screw conveyor and the screw blade can be life than hongxingly used to increase the foreign fiber reinforced plastic layer to the layer of the spiral blade . For transporting loose material toxic heavy odor screw conveyor , using a special steel manufacturing large-diameter pipe axis. To prevent the material of dust , gas and water contamination of the environment fall within or outside of the fed material , the sealing performance of the apparatus is preferably used , the conveyed material is completely enclosed in the groove in the body of the screw conveyor . Currently a large screw conveyor used abroad , the screw diameter has reached more than 3m . Compared with some other conveyor, with a long life , easy maintenance, high efficiency and small footprint , etc., and can be run at any one angle. The current mine design for the main spiral blade in several types.

The weight of the conveyor moving parts with an effective load ratio , known tare weight coefficients. For belt conveyors, which factor does not exceed 0.3 to 0.5 , but 0.9 to 1.5 motor transport , railway transport in the tare weight coefficient of 0.9 to 2.0. Ratio of the resistance and the load they carry along a horizontal line transmission equipment movement, called motion resistance coefficient . Belt conveyor drag coefficient is hongxingly 0.03 to 0.04 ; For the construction of motor transport, the drag coefficient is between 0.05 to 0.15 ; while the drag coefficient crawler tractor trailer and is 0.06 to 0.15.

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