How to Choose the suitable Heating Source for Wood Chips Dryer

The processing of wood chips has always been a tricky problem. Due to the high moisture content, it is difficult to directly utilize wood chips and convert them into economic benefits; and long-term wood chips stacking wastes resources and affects the factory environment. Faced with this problem, it is necessary to use a wood chip dryer. The wood chip dryer can achieve rapid drying of wood chips. The dried wood chips can be made into biomass pellets or used for gasification.
The heat source of the wood chip dryer is an important part in the wood chip drying production line. Choosing a suitable heat source can not only improve the drying efficiency, but also effectively reduce the drying cost of the dryer. So what are the heat sources for wood chip dryers and how to choose the best one?
The current heat sources for wood chip dryers include coal, natural gas, electricity, biomass, etc. Generally speaking, coal-fired wood chip dryers have lower drying costs. However, because coal contains a large amount of sulfur, harmful substances such as sulfur dioxide and dust may be produced during the combustion process. You should learn more about local environmental protection policies before you choose to use coal. 
The pollution of using electric energy is little, but due to low heat conversion rate and high price of the electricity; the cost of wood chips drying is greatly increased; Thus it is not recommended.

In comparison, using natural gas and biomass as heat sources causes less pollution and the price is within an acceptable range. Most customers will choose to use them as heating source when drying wood chips.