煤矿乏风氧化装置加热启动系统的研究

Research on heat-starting system for VAM oxidation equipment

我国每年通过煤矿通风瓦斯(乏风)排入大气的CH4含量约为150亿立方米,既浪费了能源,又污染了大气环境。煤矿乏风氧化装置是一种高效、节能的环保设备,可用于处理超低浓度的煤矿乏风。该装置需要通过外部能源为氧化运行创造一个高温反应场所,而创造高温反应场所的加热启动系统的好坏,直接影响了装置的稳定性和氧化效率。通过对氧化装置加热启动控制的设计和研究,为我国首台六万方煤矿乏风氧化装置开发了一套大功率电加热启动专用控制系统,并对加热工艺和多台套装置加热系统的应用进行了分析。

Every year in our country, CH4 exhausting into atmosphere through coal mine ventilation gas is about 15 billion cubic meters, causing energy waste and environment pollution. VAM oxidation equipment is an efficiency and energy saving device, using to oxidize VAM, with Ultra-low concentration of CH4. We use external energy heating for this equipment to create a high temperature area for oxidation reaction, in which the heat-starting system is the key point directly influencing the stability and efficiency of this equipment. On base of researching for the heat-starting control, we have designed a special electric heat-starting system for 60000m3/h VAM equipment, and make an analysis on heating process and utilization of heat-starting system on many sets.