By the index analysis for a few domestical pelletizing shaft furnace, it was considered that rising the high of preheat oxidation rang and expanding the area of drying bed are the most primary means for declining FeO of finished product and rising utilizing coefficient of shaft furnace The investment of technical improvements is little, but the profit is very bi

Feasibility analysis on preheating winter incoming wind by using abandoned drift;

When the preheated pulverized coal is injected, its cooling effect on hot blast is alleviated and its combustion is accelerated,consequently its utilization ratio is increased.

Numerical Simulation of Preheating Temperature Field of Immersed Nozzle;

Solving the ore-well freezing problem in Dongping gold mine by using a earth-heat preheating system;

Effect of green tire preheating on curing temperature field and curing state field;

Calculates the energy saving quantity of heat makeup and pre-heating,compares the results with those of self-supply hot source and municipal heat supply systems,providing references for operation conditio.