我厂有一台35t/h倒转炉排抛煤炉,运行方式是,早上6点开始扬火升压,运行至夜间22时停炉压火,压火时间为8h。我们在前几年一直采用锅炉停止供汽后,马上用抛煤机进行压火。用煤量要2～3t左右。经过8h压火,煤已基本“燃”尽。第二天扬火升压又要重新抛煤。所以这些煤完全消耗在压火上。致使发电标煤耗增高。压火期间燃煤分析如下: 空气从炉排下部进入炉膛,首先接触到具有一定温度的炉排,起到冷却炉排作用,同时本身受到加热,然后穿过灰渣层,空气温度继续提高,接着与赤热的焦炭相遇,空气中的氧与碳化合成二氧化碳,同时放出大量热量,这一层称为氧化层。燃烧生成的二氧化碳继续上升,与上面赤热的焦炭发 I plant a 35t / h inverted grate boilers, mode of operation is to start the morning 6:00 boost, run to 22:00 at night when the furnace shutdown, the firing time of 8h. In the past few years, we have been using boilers to stop steam supply, and immediately use a pulverizer to suppress the fire. Use coal to about 2 ~ 3t. After 8h pressure fire, coal has basically “burn” to do. The next day Yang Bo boost but also to re-throw coal. So the coal is completely consumed by the fire. Resulting in increased power consumption of standard coal. Burning coal during crushing analysis is as follows: Air from the lower part of the grate into the furnace, the first contact with a certain temperature grate, grate cooling effect, while itself being heated, and then through the ash layer, the air temperature continues to increase, Then meet with red hot coke, the air of oxygen and carbon dioxide synthesis of carbon dioxide, while releasing a lot of heat, this layer is called the oxide layer. The carbon dioxide generated by combustion continues to rise, with the red hot coke on it