High quality low price dingli sand drum dryer

  River sand rotary dryer (sand dryers, sand dryer) is mainly used for river sand, sand, limestone, quartz sand, clay and other materials large wet sex, major, it is mainly used for dries certain humidity within the scope of granular materials, such as yellow sand used in the industries of dry mortar, used for all kinds of green sand casting industry.Blast furnace slag cement industry.Granular clay, the chemical industry for no chemical change, not afraid of high temperature and soot particles materials.

 The working principle of river sand dryer: sand by belt conveyor or bucket elevator to the hopper, and then through the hopper feeder through feeding tube into the feed end.The feed pipe slope should be greater than the natural inclination of materials, so that the material smoothly into the sand in the dryer.The dryer cylinder is a horizontal tilt slightly into the rotary cylinder.Material from high end to join, heating medium from low-end to enter, and material into a counter-current contact, there is also a heating medium with materials and flow into the cylinder.With the rotation of the cylinder material by gravity to run to the bottom on the lower side.Wet materials in the process of cylinder body move forward, directly or indirectly get the heating medium for heat, to dry the wet material, and then by the belt conveyor or screw conveyor at the discharge end.

  In sand dryer cylinder wall is equipped with copy board, its role is to put the material copy up and again, the contact surface is increased and the air flow of material, in order to improve the drying rate and promote the material progress.Heating medium is generally divided into the hot air and flue gas, etc.After heating medium by the dryer, generally need to cyclone with materials in the gas trap.To further reduce exhaust dust content, but also through the bag dust collector or put emissions after wet dust collector.


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