1. Local small pieces of slag in the gas generator were not processed in time, resulting in excessive local ash content.

Because the resistance of coal ash is smaller than that of coal ash, the air volume is larger in places where coal ash is high, resulting in strong gasification and higher and higher coal ash. In places where coal ash is low, the coal ash layer is relatively thin. Then such a vicious cycle will cause a serious furnace partial furnace phenomenon. Half of the fire layer reaches the furnace head, and the other half of the reduction layer no longer exists. Therefore, we must check the furnace condition frequently and deal with slag promptly to avoid partial furnace accidents.

2. Another reason is due to the poor condition of the original furnace.

When igniting, due to the uneven distribution of slag in the furnace, or the slag containing larger slag, or because the entire furnace section burns unevenly after ignition, the slag is eager to be discharged, causing one end of the furnace to catch fire and the other end to catch fire, forming a partial furnace phenomenon.

3. Inhomogeneity of internal coal

For a double-bell stoker without a stirring rake, because the position of the coal spreading cone is not adjusted properly and the furnace condition is not checked frequently, it is easy to cause more coal to be dropped on the side and less coal to be dropped on the side. In places where there is a lot of coal, the resistance of the material layer is large, the air volume is reduced, the reaction is slowed down, and there is less ash. In places where there is less coal, the resistance of the material layer is small, the air volume is increased, the reaction is accelerated, and ash is formed quickly. Over time, it is easy to occur eccentric operation.

4. The non-uniformity of slag output causes partial furnace phenomenon

Because it's smallgas generatorOnly one large ash knife is installed, so the ash is crowded in front of the large ash knife and behind the ash knife, and the ash is relatively loose. Due to the inconsistent resistance of the material layer, an offset operation is formed. After several attempts, the position and length of the small ash knife can be appropriately adjusted to achieve the purpose of uniform ash removal.

5. Uneven air supply from a single fan causes system bias

Because the grate is eccentric, and it is inevitable that the margins between layers are not consistent during the installation process, resulting in uneven air supply and uneven operation. The solution to this situation is of course to improve the assembly accuracy. In addition, you need to carefully explore the windy position of the furnace comb, turn the windy position of the furnace comb to the side with less ash, and then stop and rotate the ash pan for a period of time to make the ash layer as uniform as possible. If it cannot be adjusted in a single time, stop for another week to promote the ash layer to rise.

6. Due to the bonding strength of coal, it cannot be stirred evenly in time.

In some places, coal sticks to lumps, resulting in uneven airflow distribution in the furnace and causing the furnace to be overheated.

7. There are some defects in the gas generator itself, such as the grate rotation center and the furnace are not concentric, the furnace is not round, and there are leaks on the triangular bracket or water jacket, which will also cause deflection.