The carbon monoxide incinerator fails to reach the required temperature, and the superheated steam in the residual boiler is above the permissible level
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The dry gas volume is limited to the minimum level; the nozzle temperature is 620–630 degrees, the temperature at the furnace outlet is 607 degrees, and the temperature at the inlet of the residual boiler is 689 degrees. The furnace temperature won’t rise; once it does, the superheated steam causes the temperature to go too high. Making slight adjustments to the primary and secondary air doesn’t yield very good results. Do any of you technicians have any good solutions?
What temperature do you require? I have designed a carbon monoxide incinerator. The furnace temperature can reach up to 1200 degrees.
The originally designed refractory material could only withstand temperatures of 1000 degrees; it turned into a glassy state and couldn’t be removed, so refractory material capable of withstanding 1400-degree temperatures was used instead.
This needs to be calculated; if the structure of the burner is not changed, the temperature can only be increased by raising the calorific value of the combustion gas. If adjusting the air flow doesn’t work, it means the combustion is already sufficient. Personally, I feel that the burner designed is too small. Insufficient amount of carbon monoxide gas.
All parameters of the operating conditions before shutdown were under control; the temperature in the furnace was 656, and a small amount of dry gas was sufficient to burn carbon monoxide in the incinerator. At that time, the temperature at the furnace outlet was 690, while the temperature at the inlet of the residual boiler was below 690. The superheated steam does not exceed the temperature limit. Now the overall issue has shifted, and it is determined that tail burning has occurred.
All parameters of the operating conditions before shutdown were under control; the temperature in the furnace was 656, and a small amount of dry gas was sufficient to burn carbon monoxide in the incinerator. At that time, the temperature at the furnace outlet was 690, while the temperature at the inlet of the residual boiler was below 690. The superheated steam does not exceed the temperature limit. Now the overall issue has shifted, and it is determined that tail burning has occurred.
What is the maximum adjustment range for primary and secondary air, and what is the corresponding opening degree?
Secondly, it is also related to the amount of superheated steam; the overall structure and the processing load indeed constitute constraints as well, but I think the problem lies in the adjustment and distribution ratio of the primary and secondary air.