文档介绍：热装高炉高温煤气喷雾降温塔工艺计算
摘要:高炉原燃料热装工艺能显著提高铁前工序显热资源利用效率,为保证高温高炉煤气的净化回收系统安全,须在干法布袋除尘设施前设置喷雾蒸发降温塔。本文通过对干式喷雾蒸发降温理论进行分析,结合热装高炉操作变工况条件,推导出全套喷雾蒸发降温塔的理论计算方法。该方法可对塔内喷水量、降温塔出口煤气露点和含湿量、液滴蒸发时间、及塔体结构尺寸等关键技术参数进行便捷准确的计算,且易于计算机编程应用,对实际推广具有积极的意义。关键词:热装高炉高温煤气喷雾降温塔工艺计算
Process Calculation of High Temperature Gas Spray Cooling Tower of Hot Charging Blast Furnace
Abstract: Sensible heat resource efficiency will be significantly improved by a new technical method of hot charge the burden to the blast furnace. A spray evaporative cooling tower should be set in front of the dry dust bag collectors to ensure the safety cleaning and recovery system of high-temperature BFG. This paper derives a full theoretical calculation method based on the dry spray evaporative cooling theory analysis and the variable loading conditions of hot charging blast furnace operation. Spray water volume, outlet gas dew point and moisture content of the cooling tower, droplet evaporation time, and the tower body size and other key technical parameters can be calculated by this method accurately and conveniently, which is easy puter programming application and has positive significance for the actual promotion.
Key words: hot charging blast furnace; high temperature gas; spray cooling tower; process calculation
在目前以及今后相当长一段时间内,高炉炼铁工艺仍将在钢铁生产过程中占据主导地位,而采用高炉原、燃料热装的方案,可有效利用铁前原、燃料的显热,节约能源并减少CO2的排放[1]。针对高炉热装生产以及高炉异常工况产生的高温荒煤气(温度超过450℃