1. Thermal operation phenomena of a single-stage gas generator: (1) The gas outlet temperature is too high and is not within the specified range; (2) Open the fire detection hole for observation, and there is a fire on the surface of the material layer in the furnace, with local fire and burn-through phenomena; (3) From the fire detection The gas coming out of the hole catches fire, the CO content in the gas is low, and the gas quality becomes poor; (4) The ash layer increases faster, the amount of residual carbon in the ash is unstable, and more of it is discharged with the ash; (5) When inserting a drill into the furnace, the material layer feels sticky.

2. The hazards of thermal operation:

(1) The ash layer is relatively too high, the thickness of other layers is correspondingly thinner, the reduction is insufficient, and the carbon dioxide content increases.

(2) The temperature of the oxide layer is too high, which is greater than the ash melting point and can easily cause coking.Single stage gas generatorThe furnace condition deteriorates, the gasification reaction is not good, and the effective components decrease.

(3) Due to local fire, burn-through phenomenon occurs, causing the air to take a shortcut and secondary combustion of combustible components in the gas. At the same time, the increase in oxygen content directly endangers production.

(4) The carbon content in the ash increases, which leads to an increase in the consumption quota of gasification raw materials.

3. Cause analysis: (1) The saturation temperature is lower than the normal value or fluctuates greatly for a long time, or the combustion layer is too thin; (2) The ash layer is higher than the normal value for a long time, the ash is not removed in time, the furnace is not penetrated on time, and the balanced tightness and total layer height are not within the normal range.

4. How to deal with the heat operation of a single-stage gas generator:

(1) According to the actual situation, strengthen the operation intensity and increase the saturation temperature appropriately, but it should not be greater than 4℃.

(2) Appropriate addition of materials, dust removal, and furnace ventilation. Make the total layer reach 800-1100mm, and re-cultivate the fire layer, reduction layer, carbonization layer and drying layer.

(3) According to the temperature of the kiln, reduce the air volume as appropriate.