The invention provides a 
sludge paddle desiccation method, which comprises the following steps: loading wet 
sludge into a 
paddle desiccator with a charger, indirectly heating materials through a hollow blade heating shafts and a shell jacket with thermal medium, the heating shafts intermeshied and rotating, with squeezing and relaxation alternative action, materials dried and moving to a 
discharge door 
simultaneity. The wet share evaporated in 
drying process is carried and discharged with carrying gas, and the carrying gas can enter from a carrying gas inlet or the 
discharge door, and is ejected from exhaust outlet. The heating shafts of the 
desiccator can be two shafts, or four shafts. The wet share discharged from the 
desiccator is washed, dedusted and deodorizated with a washing 
tower to reach the 
emission standard, and evacuation with a induced fan. The invention has the characters such as small 
energy consumption, low 
operating cost, small equipment plot area and equipment investment, big operating flexibility, stable and reliable operation, little entrained dust and material depletion. The invention settles the technical roadblock of huge dedusting equipment, high 
operating cost of hot-air 
sludge desiccator or short periodic motion caused by frequently sticking wall in other sludge 
desiccation. The invention not only make 
drying in allusion to the characters of high 
moisture content and high 
viscosity of sludge, but also is suitable to dry industrial sludge such as 
oil sludge, catalytic sludge, chemical sludge, 
biochemistry sludge, and domestic sludge.