How to choose the heat source for grain dryer?

When selecting a heat source, local energy resources must be considered to achieve rational utilization and reduce costs. If there are coal mines in grain-producing areas, the heat source is coal, anthracite or coke. The price is economical, but the one-time investment in coal-fired hot blast stoves is large. In grain-producing areas with oil fields and natural gas, light diesel, heavy oil or natural gas and propane can be used as hot blast stove fuel. The cost of using such fuels is high, but the one-time investment in hot blast stoves is small. The special seed dryer should use a fuel or natural gas hot air stove because its air temperature is stable and easy to control, which can ensure the germination rate of dried seeds. Nowadays, environmental protection is advocated. Biomass energy hot air stoves using rice husk as fuel are currently widely used. On the one hand, it saves non-renewable energy, and on the other hand, it plays a positive role in the processing of large amounts of rice husk.