Coal Oxygen Inhibitor is mixed with water and sprayed on the surface of coal, forming a polymer protective film on the surface of coal.The protective film has multiple effects, not only can isolate the coal oxygen contact, inhibit the sponta- neous combustion of coal, prolong the coal storage cycle, but also can play a role in dust suppression, reduce the weight loss caused by coal dust and wind and rain erosion in the process of coal transportation.
Technological Overview
Coal Oxygen Inhibitor is mixed with water and sprayed on the surface of coal, forming a polymer protective film on the surface of coal.The protective film has multiple effects, not only can isolate the coal oxygen contact, inhibit the sponta- neous combustion of coal, prolong the coal storage cycle, but also can play a role in dust suppression, reduce the weight loss caused by coal dust and wind and rain erosion in the process of coal transportation.
Flame And Retardant Mechanism
After spraying the coal oxygen inhibitor, a layer of polymer protective film will be formed on the surface of coal, which can inert the surface active structure of coal; at the same time, there are corresponding critical temperatures and activa- tion energies for water evaporation and gas desorption stage and oxygen absorption and weight gain stage in the oxida- tion process of coal, the oxidation speed will be rapidly increased after the critical temperature, and the higher the activa- tion energy, the slower the oxidation speed will be; it is determined by the experiments, the activation energy of coal sprayed with coal oxygen inhibitor is higher, which will raise the critical temperature of each stage of oxidation, thus inhibiting the purpose of spontaneous combustion of coal.It is experimentally determined that the activation energy of the coal sprayed with coal oxygen inhibitor is higher, which raises the critical temperature of the coal in each stage of oxidation, and thus inhibits the spontaneous combustion of coal.
Technical Characteristics
(1) High operational efficiency, simple and easy to operate process, spraying can be done at the transfer point;
(2) Compound function, both fire prevention and dust suppression;
(3) No effect on coal quality;
(4) non-toxic, odorless, non-corrosive, harmless to people and equipment.
(5) Reduce the activity of coal body, reduce the loss of volatile matter, and guarantee the stability of calorific value.
Critical Temperature Comparison
Application Areas
Prevention of spontaneous coal combustion during transportation, loading and unloading by trains, automobiles, cargo ships, etc.; prevention of spontaneous coal combustion and coal dust in belt conveyor links.
Comparison Of Activation Energy
