working principle of rotary drum dryer
1.Material to be dried enters the dryer, and as the dryer rotates, the material is lifted up by a series of internal fins lining the inner wall of the dryer. China best Brewers grain dryer /Brewers grain rotary drum dryer/Brewers grain drying machine
2.When the material gets high enough to roll back off the fins, the raw materials falls back down to the bottom of the dryer, passing through the hot gas stream as it falls.
3.This hot air can either be moving toward the discharge end from the feed end , or toward the feed end from the discharge end .
4.The hot air can be made up of a mixture of air and combustion gases from a burner, in which case the dryer is called a direct heated dryer. China best Brewers grain dryer /Brewers grain rotary drum dryer/Brewers grain drying machine
5.Alternatively, the gas stream may consist of air or another (sometimes inert) gas that is preheated.
6.When the gas stream is preheated by some means where burner combustion gases do not enter the dryer, the dryer known as an indirect-heated type. Often, indirect heated dryers are used when product contamination is a concern.
features of rotary drum dryer
◊ The internal of the rotary drum manure drying machine adopts assembled structure which has improved the accuracy of the equipment and it is easy to transport and install.
◊ According to the characteristics of different fertilizers, we have arranged the second granulation zone reasonably so as to improve the granulation effect.
◊ the rotary drum manure drying machine Adopts assembled hoist board so as to exchange heat fully and lower the energy consumption.
◊ Temperature induction monitor, uniform vibration and airproof setting, which improve performance and productivity efficiently .
◊ The assorted combustion furnace is a type of energy-efficient and has the characteristics of smaller area, easy regulation and equipped with greenhouse.
◊ the rotary drum manure drying machine is usually used with fertilizer granulator machine to dry raw materials and finished granules
The drying rate of the is constant figure in this period, material surface always there surface moisture, heat of hot air transfer to material all used for evaporating. So material surface temperature all along keep the wet bulb temperature and unchanged, hot air temperature and palm waste water falling rapidly.Material moisture content has fallen to request from value, material expel from the rotary drum dryer machine, and then into the cooling system, make the dried palm waste temperature reduced quickly, avoid material to absorb moisture from the air again. The products which after cooling can be directly press block molding.
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