magic ceramic mugs color changing mug cup Coal burning in the grate on what?

magic ceramic mugs color changing mug cup

Coal combustion in the grate of the tunnel kiln in the inverted flame kiln or coal burning, it is the ignition, burning, burn the three phases are mutually staggered. For example, the Xintian into the coal is in the ignition stage, below it is now in the stage of combustion of the coal, the new coal fire the heat required is in the stage of combustion of the coal supplied to the heat released by this, in this layer is at below the coal to the combustion stage, is added to the previous batch of coal, has entered the burnout stage. Over a period of time, and added into a number of new coal. Began its coal fire stage, the original ignition phase of coal into the combustion stage, the original coal burning phase into the burnout stage, while the original burnout stage already become ash. Coal grate is such a time, inter-related to burning.