The apparatus has two dewatering stages a preliminary evaporating stage and a residual evaporating stage, {HEAD ~ a conversion stage} and {TAIL ~ a cooling stage} 
The apparatus has two dewatering stages a preliminary evaporating stage and a residual evaporating stage , { HEAD ~ a conversion stage } and { TAIL ~ a cooling stage }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL