STUDY ON HOT SAND COOLING EQUIPMENT WITH DAMPING SAND CASCADE AND VERTICAL SPOUTED-FLUIDIZED BED

摘要

A new kind of hot sand cooling equipment with vertical spouted-fluidized bed is developed in this paper. It is similar to the traditional horizontal vibrating fluidized boiling cooler in principle but different from it in structure. The processing principle of the cooler is analyzed. The influence of main structural and processing parameters on the cooling effect and its mechanism axe researched. Other characteristics of the cooler are discussed, also. Experiment results show that the cooling efficiency eta is equal to or larger than 83 percent, the temperature of output sand is less than 40 deg C with the temperature of input sand is about between 80 and 90 deg C, and the productivity is 5t/ (h centre dot m)