Why does the chimney emit yellow smoke when cleaning the converter mouth

As the saying goes: "The chimney emits yellow smoke and the smoke is wet." The main source of yellow smoke from chimney

Because:

( 1)

There is a lot of humidity in the chimney.

(2)

There is yellow water and smoke oil in the chimney, and it is frosty and wet.

(3)

Intermittent fires, especially on windless days.

(4)

Burning wet coal, wet firewood and other fuels.

Especially in summer, there is no wind, the air pressure is low, and the fire on the kang is intermittent because of the hot weather.

Low temperature and high humidity often lead to "yellow smoke crawling all over the ground"