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Four days to New Year's Day 2017
Two thousand and seventeen
Twelve
27 Choose Dryer
How to choose a dryer?
Keep these five principles in mind~

There are many kinds of grain dryers, with different equipment specifications, production capacity and heat sources. To buy grain dryers, we must understand their own needs and know how to choose the type.
1. Equipment specifications
The configuration of dryer model size is determined by comprehensive analysis according to the local actual situation and the requirements of two important indicators of dryer productivity and precipitation range. If the requirement is for 3 000 tons of corn with 26% moisture content, when the average ambient temperature is -5 C, the corn can be stored for about 15 days, working 20 hours a day, drying down to 14% safe moisture after 30 days. A small dryer with 5 t/h treatment capacity and larger drying capacity can be selected (when 5% water per hour is reduced, its drying capacity is 12 tons. 。 If the grain processing capacity is large in the drying season in the grain-concentrated producing areas, large high temperature, high efficiency and fast dryer can be selected according to the actual situation.
2. Production capacity
The equipment of dryer should be large rather than small, because in most cases, when the harvest season meets the rainy season, it needs to play the role of dryer. Large drying capacity and low productivity can not solve the problem. Large and medium-sized dryers should be built in national and local reserves and grain-intensive production areas. The service radius of fixed dryer should be small rather than large, so as to reduce transportation distance, reduce cost and improve efficiency. Mobile dryer can be used in areas where grain production is not concentrated in rural areas and small grain production areas in southern China. Its productivity is generally 2-5 t/h. It is too small to be welcomed by users. It is better to use multiple dryers. It is not only suitable for grain and grain varieties, but also suitable for some cash crops. The service radius should be larger in order to play the role of mobile dryer.
3. heat source
When choosing the dryer, local energy resources must be considered in order to make rational use and reduce costs. If there are grain producing areas in coal mines, coal, anthracite or coke are suitable for heat source, which is economical in price, but the one-time investment of coal-fired hot blast stove is large. In grain producing areas with oil fields and natural gas, light diesel oil, heavy oil or natural gas and propane can be used as hot stove fuel. This kind of fuel has high cost, but the one-time investment of hot stove is small. The special seed dryer is suitable for hot blast stove with oil or natural gas, because its air temperature is stable and easy to control, which can ensure the germination rate of dried seeds.
4. Environmental Conditions
Because of the different harvest seasons of various crops and the temperature difference between the north and the south, the drying effect and operation cost must be considered. If the coastal areas avoid drying grains in low temperature and humid weather as far as possible, otherwise the dehydration effect is poor, the productivity is low and the drying cost is high. Nearly half of the drying time in the northern region is below 0 C. The lower the external temperature, the higher the unit heat consumption and the higher the cost. Therefore, in order to reduce heat loss, thermal insulation layer should be added to the outer wall and hot air pipeline of the dryer operating below 0 C in the north.
5. Accessory equipment
In order to complete the drying operation, the dryer must be equipped with some auxiliary equipment. Continuous dryer should be equipped with upper and lower level device (or overflow pipe) in grain storage section, temporary storage bin in process should be equipped with full level device, hoist should have automatic shutdown and blockage alarm device, etc. The motor should be equipped with overload protection device and be able to realize manual and automatic interlocking control. The grain discharging mechanism should be able to achieve speed regulation or stepless speed change. Temperature control instrument should be able to display hot air temperature and grain temperature of each section, and can alarm at high temperature. In order to test the moisture content of grain, a rapid moisture tester should be equipped.

If you want to buy a dryer, you can come to Seminole, Anhui Province. Here are the most cost-effective dryer products.
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