How to Make Coal Slime Dryer Energy Saving?

Coal slime dryer is suitable for drying coal slime, sludge, the metal and nonmetal ores, clay in cement industry, etc. The coal slime after drying can reduce the water content to below 12%, which can be directly used as fuel. With the implementation of low emission policy, customers pay more attention to the energy saving effect of the equipment. Dingli Machinery has put forward three ways to make the coal slime dryer energy saving:

1. Reduce the evaporation load of slime dryer: before entering into the slime drying machine, materials must go through the filter, centrifugal separation, evaporator and other pre dehydration processes, which can effectively increase the solid content and reduce the evaporation load of materials. It is one of the most effective means of making the dryer energy saving.

2. Increase the air temperature of coal slime dryer entrance and reduce the outlet gas temperature. Due to the common sense of dryer thermal efficiency, increasing the air temperature of the dryer entrance can effectively enhance the heat efficiency of the dryer. But the air temperature is limited by the required temperature of product. The surface temperature of the particles is relatively low. Therefore, the air temperature of coal slime dryer entrance is much higher than the required product temperature.

3. The exhaust gas recirculation system. The exhaust gas recirculation system makes use of the residual heat in the exhaust gas, so as to increase part of the heat efficiency of drying machine. Then the increased exhaust gas circulation will make the moisture content in hot air increase to reduce the drying time. Thus, the wet material will become more and more, which increases the cost of drying equipment, so the exhaust gas recirculation amount should be kept in an optimal amount.

Dingli Machinery is specialized in producing coal slime drying machine, which has high quality, reliable performance, reasonable price and considerate after-sales service. With these advantages, our products have won great support from customers, welcome to visit us!

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