I’m asking experts to help figure out why the boiler is smoking
Thread Content
The boiler was working fine in the previous years, but this year it produces a lot of smoke when it’s turned on. Normally, there is only a little smoke that disappears after a while; now however, there’s a lot of smoke, and it doesn’t stop for some time
The ratio of air to coal has not been adjusted properly; increase the air supply volume and adjust the thickness of the coal layer.
What boiler? What is the burning medium?
Please explain the situation clearly, so that more answers can be provided
It indicates that the combustion was not proper; the blowing and exhaust air were not properly controlled
What kind of boiler? I need to know the specific operating conditions to give an answer
What exactly is the situation? Where is the smoke coming from – is it from the chimney or is there a leak from the boiler itself? From what you’ve described, it seems to be smoke escaping due to positive pressure inside the boiler. Issues such as improper adjustment of the blowers and exhaust fans, blocked flues, or high resistance in the dust collector can all cause smoke to appear.
Please explain the situation clearly, so that more answers can be provided
This post was last edited by gjn1970 on 2016-12-19 at 23:26. According to the original poster’s description, it means that the boiler is under positive pressure; smoking becomes more severe if the furnace isn’t properly sealed. The common causes are as follows: 1. Leakage in the furnace tubes, which increases the flow of flue gas and exceeds the capacity of the exhaust fan. Additionally, leaks in the heat exchange surfaces at the rear of the furnace can lead to ash accumulation, increasing the resistance to flue gas flow and thus causing smoking. 2. Poor boiler combustion is manifested by unstable coal flow supply, an improper air-coal ratio, and incorrect control of negative pressure in the furnace, resulting in smoke emission. 3. If the furnace body and flue are not properly sealed, the more the air leakage occurs near the exhaust fan, the more severe the smoking from the furnace body will be.