The burner of the regenerative heating furnace is not tightly integrated with the furnace wall body, which is prone to fire problems. Today, Yinuo will come to analyze the specific reasons and solutions with you. First, let's check the reason of the burner fire through the schematic diagram:

In the above figure, the shaded part indicates the furnace wall around the burner that was burned out due to long-term fire before the renovation of the regenerative heating furnace. There are two reasons for the fire in the furnace wall. One is due to the common positive pressure operation problem of the regenerative heating furnace. After the furnace is used for a long time, there will be expansion and contraction gaps between the wall and the burner body, which will easily cause the flame to burn along with the positive pressure in the furnace. Overflow from the gap around the mouth;

Second, because the ceramic pellets used in the past are regenerative burners with heat storage medium, the empty gas is sprayed into the furnace from the same burner. The corundum gas nozzle sleeve is in a high temperature state for a long time, and the burning loss becomes shorter after long-term use. Mixing starts inside the burner. When there is a gap between the burner and the burner brick surface, the gas leaks along the burned surface. After mixing with high-temperature air, it burns and overflows along the gap around the burner, causing fire around the burner. phenomenon.

To solve the problem of fire, empty gas should be separately supplied into the regenerative heating furnace. The burner bricks should be fixed in advance before the furnace wall is poured. The furnace wall should be poured in layers, and the burner body and the burner brick should be closely combined and layered. Pour the furnace wall around the burner and strengthen the anchoring measures.