(中南工業(yè)大學(xué)資源環(huán)境與建筑工程學(xué)院，長沙410083)
摘 要: 金屬硫化礦物氧化起因于硫化礦石固液相界而的電化學(xué)反應(yīng)。水是硫化礦石自熱、自燃的關(guān)鍵。注水、石灰水及其他阻化劑的阻燃方法忽視了水濟(jì)液中游離氧在硫化礦物氧化過程中所起的巨大作用，因而收效甚微。注水對(duì)自燃的礦石有一定的物理降溫作用，但對(duì)未燃礦石則起了電化學(xué)升溫作用，對(duì)深部礦體則起了預(yù)熱預(yù)氧化作用。水的電化學(xué)升溫助燃作用大于水的物理降溫阻燃作用。
關(guān)鍵字: 硫化礦自燃 水中游離氧 電催化作用
OF METALLIC ORE BODY
（College of Resource, Environment and Civil Engineering,
Central South University of Technology, Changsha 410083）
Abstract:The following ideas have been gotten via many investigations and detail discussions on the spontaneous combustion and the extinguishment of metallic ore body: the spontaneous combustion of metallic sulphide results from the electrochemical reaction taking place at the interface between the solid and liquid facies of ore, and water is a key factor for spontaneous combustion and heating of ore. The combustion-resisting methods of injecting water, lime water and other react-resisting agents failed to play a good role in extinguishing fire because the role of isolated oxygen in liquid was not considered. Although water can decrease temperature, it can also catalyse ore spontaneous combustion, and can preheat and pre-oxidize the deeply burried ore bodies, and the latter role of water surpasses the former.
Key words: spontaneous combustion of sulphide ore isolated oxygen in water electro-catalysising
