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Methods for Better Performance of Sand Dryer

Bookmark and Share      Date: 09-10-2015     From: Fote Machinery     Author: Fote Machinery

Sand dryer, also named as quartz sand drying machine, is mainly used to deal materials with high water content inside like river sand, artificial sand, silica sand, yellow sand, mineral sand, mineral powder, grain slag, blast furnace slag, coal ash, coal cinder and so on. Based on the difference of raw material, the methods for improving the output of quartz sand drying machine are different too. The following content will briefly introduce some common methods for you to take as references.

sand rotary dryer

Firstly, it is to lower the evaporation load of river sand dryer. Before entering into the rotary drum, raw materials can be processed by the preliminary dehydration like filtration, centrifugal separation and evaporation, etc. This method can be regarded as one of the most effective to reduce the energy consumption. Secondly, it is the circulation of sectional exhaust gas. The usage of heat remains in exhaust gas can improve the thermal efficiency of quartz sand drying machine. While, along with the increase of circulation volume, moisture content in hot air will gradually increase. As results, drying rate will decrease while drying cost will increase. Therefore, the optimal circulation volume should vary from 20% to 30%.

At last, it is to reduce the diversified heat losses during the drying process. Generally speaking, the heat loss of sand rotary dryer is less than 10%. If thermal insulation is enough better, heat loss will be about 5%. When it refers to the heat insulation of drying system, an optimal thickness of insulating layer should be confirmed. If you have any question about our products, it is OK to leave message on website of http://www.ft-dryer.com or directly email us at vip@sinoftm.com.

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