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How Does the Sand Dryer Machine Work?

Bookmark and Share      Date: 13-08-2015     From: Fote Machinery     Author: Fote Machinery

As a kind of drying machine, sand rotary dryer is mainly used to dry materials like river sand, artificial sand, silica sand, yellow sand, mineral sand, mineral powder, grain slag, blast furnace slag and coal ash, etc. Sand materials are delivered to hopper by belt conveyor or bucket elevator and then enter into the feed end by charger through the feeding pipe. The inclination of feeding pipe should be larger than natural slope of sand materials, thus materials can smoothly enter into the rotary drum of rotary sand dryer.

The rotary drum, as an important part of sand dryer machine, is slightly slanting to the horizon. The higher end is the feeding mouth of sand material and the lower end is the feeding mouth of heat-carrying agents. Of course, the situation that sand material and heat-carrying agent enter into the rotary drum toward same direction is allowable. Along with the rotation of drum, sand materials naturally move to the lower end under the gravity influence. During the moving process, sand materials receive the heat from heat-drying agents directly or indirectly.

The dried materials are discharged out at the discharging mouth through the belt or spiral conveyor. Inside the rotary drum, there are several lifting boards, which are able to widen the contacting surface between sand material and hot air and improve the drying efficiency. The so-called heat-drying agents are generally classified into hot air and flue gas, etc. When heat-carrying agents pass through the rotary drum, some sand materials are easy to be brought away. You should install a cyclone separator inside the sand dryer machine to collect such materials. If you want to further reduce the dust, bag filter or dust washer can be used. Want more information? Please leave messages on our official website: http://www.ft-dryer.com.

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