What are the methods to prevent spontaneous combustion of sulfide ore?

Oxidation, oxygen supply conditions and heat accumulation conditions of ore are three conditions that must be possessed by spontaneous combustion of sulfide ore.

Among the three elements of spontaneous combustion of sulfide ore, the oxidizing property of ore with spontaneous combustion tendency exists objectively. Therefore, most people pay attention to the other two factors, namely, their role in the spontaneous combustion of ore. Certain technical measures inhibit or eliminate their effects. In fact, the objective factor of the oxidization of ore cannot be changed. For example, by spraying a suitable inhibitor on the surface of the ore, the surface of the ore is passivated, thereby achieving the purpose of controlling its oxidizing property.

In terms of fire protection technology, methods used in the past include perfusion mud, spray inhibitors, enhanced ventilation, filling chamber areas, and closed goafs.

In terms of comprehensive fire prevention measures, it is required to pay attention to the design of the deposit, production management, etc., such as selecting a reasonable development system, designing efficient and safe mining methods and reasonable mining processes and parameters, promoting the “three strong” mining, reducing ore Loss, strengthen monitoring, and strengthen production management.

This production line is suitable for eletric power, telecommunications, hardware, three-dimensional