摘要
首次提出了高硫煤自燃的预报方法.理论分析表明,硫化物的燃点远低于煤的燃点,高硫煤自燃主要是由硫化物自燃引起的,可靠的预报方法必须建立在硫化物的燃点基础之上.由于煤温的预报范围覆盖硫温的预报范围,高硫煤自燃预报不需单独构建硫氧化升温与标志气体的关联模型,可借助煤的测定结果,这样,用一套预报模型可同时兼顾高硫煤与低硫煤的自燃预报过程.在自燃阶段划分中,根据煤的含硫量区别对待是防止自燃误报的关键所在.对于低硫煤,阶段划分和预报范围≤300℃,对于高硫煤则阶段划分和预报范围≤150℃.青山矿应用该方法有效杜绝了高硫煤自燃误报问题,这对其他类似情况的矿井具有借鉴意义.
The forecast method of high-sulfur coal spontaneous combustion is firstly proposed. The theoretical analysis indicated that the sulfide ignition point was lower than the coal. The high-sulfur coal spontaneous combustion was mainly caused by the sulfide, so the dependable forecasting method must be established according to the sulfide ignition point. Because coal temperature forecasting scope covered sulfur, the high-sulfur coal spontaneous combustion forecasting did not alone construct the calculation model but use the coal. Thus, dual attention may be given to the spontaneous combustion forecast process of high-sulfur coal and low-sulfur coal with a set of model. According to the sulfur content of coal, dividing the stages of spontaneous combustion was the key that prevented the spontaneous combustion forecast from mistake. For the low-sulfur coal, the stage division and forecast scoped ≤300 ℃, and the high-sulfur coal ≤150 ℃. Qingshan Mine has effectively ceased the forecasting mistake of high-sulfur coal spontaneous combustion by applying this method into practice. And this is also of model significances to other similar situations mines.
出处
《矿业工程研究》
2009年第3期41-44,共4页
Mineral Engineering Research
基金
湖南省安全监督管理局基金资助项目(HN09-03)
关键词
高硫煤
自燃阶段
划分
预报方法
high-sulfur coal
spontaneous combustion stage
division
forecast method
