Reheat boiler drying curve
Thread Content
Question: What is the basis for drawing the drying curve of a waste heat boiler? What is the maximum furnace temperature?
The curve for furnace drying should be provided by the refractory material manufacturers, as the requirements vary for different materials. What do you think?
Look, whether it’s a lightweight or heavy-duty furnace wall: the lightweight type can reach up to 160 degrees Celsius, while the heavy-duty type can reach 220 degrees Celsius.
Reply to 2# Always love Yuanping. I think the same way
It should be the boiler manufacturer who provides the curve
Baking the furnace according to the curve provided by the lining manufacturer
The furnace drying process cannot be carried out casually; the lining supplier should provide a drying plan that covers various aspects such as whether to use a furnace dryer, the heating curve, the fuel used for drying, and the layout of the hot air ducts after drying. The quality of this drying process has a significant impact on the performance of the lining. It’s not based on guesswork. Generally, the temperature is raised to 110°C in the first stage; after holding it at this temperature for a while, it is increased to 350°C. Once again, after holding it at that temperature, if there is a high-temperature oven available, the temperature is raised to 510°C and held there; if no such oven is available, the temperature is raised to the operating temperature and then lowered again. The specific heating and cooling rates, the holding temperature, and the holding time all depend on the specifications provided by the material supplier.