In river sand production,sometimes the initial moisture are over standard of market.We use rotary dryer for series sand drying and non-inflammable mineral moisture removal and drying. On basic method of drying ,sand dryer works as a roller with fire and hot air with rolling of material.
Usually we chose local fuel for heating.Coal,oil,woods,bio fuel,but it might not heating enough for drying.
How to chose proper fuel ,right here tips for you:
1- Meet product quality requirements.Heating temperature, the cleanliness of the heat source are have a great impact on product quality.
2- Meet environmental requirements.Some fuel will produce odors or smoke, it will cause pollution to the atmosphere after such heat source should be used cautiously.
3- Economic and easy to get at local market.The heat source should be chosen according to local conditions, both consider the cost of heat, but also consider the readily available.
4- Safe and dependable.This is more important for the direct-fired heat source , and some dry materials flammable, explosive or easily oxidized, the best choice to deal with such material by indirect heat exchange heat source, the choice to have a special direct-fired flame or explosion protection.