Abstract: For the sake of preventing effectively fire accidents in the lint warehouse, experiments were carried out by using the combustion heat release rate test method, the effects of storage time, environmental temperature, humidity and moisture content on the combustion properties of lint were studied by cone calorimeter, the corresponding suggestions on the safety management of the lint warehouse were put forward. The results show that the longer the storage time, the shorter the ignition time of lint sample,the higher the peak value of heat release rate, the higher the fire risk,thus lint bales should be stored separately in accordance with the storage time, that in a high temperature and high humidity environment, lint bales are more flammable, the speed of fire spread increases, therefore in summer, environmental monitoring and management of the lint warehouse should be strengthened, and appropriate measures for cooling and ventilation should be taken, and that the use of water in fighting the cotton stacking fire can only play a cooling effect and it is difficult to stop burning, so the way of physical isolation should be added to the firefighting of lint warehouse.

Key words: lint, environmental temperature, humidity, burning characteristics, cone calorimeter