Regarding boiler lining drying
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Dear Haihao friends! Do you use steam for boiler drying? Does a steam oven mainly be used to dry out the superheating section of a waste heat boiler? Is it necessary? How to understand it. We have integrated the newly installed CO incinerator with the waste heat boiler.
Under normal circumstances, steam is used to protect the boiler at the start of drying, but it doesn’t seem like much steam is used for this purpose! The purpose of heating the furnace is to remove moisture; when steam enters, it condenses back into water anyway. . . . . . Was protection and furnace heating mixed up?
I agree with you very much, which is why I’m also confused about what is meant by this plan. The key point is that at the beginning of the drying process, the temperature should be kept constant between 30 and 70 degrees for one day; yet the plan suggests using steam to heat the oven.
If you put it that way, I get the general idea. When using fuel gas for heating the lining in the low-temperature section, it is difficult to maintain control; instead, steam is introduced into the boiler system to serve the purpose of heating the lining in that low-temperature section. This approach is also employed during the process of heating the lining of boilers used in sulfur production!
I see now; actually, at this time it’s not necessary to use a furnace – using smoke for drying will also work, I guess? Is that correct?
In fact, it’s sufficient to raise the temperature in strict accordance with the heating curve; as for the specific heat source to be used, it depends on the local conditions. Steam-induced heating has been consistently used in oil slurry steam generators, and it yields good results as well
Thank you for the reply; I agree with your approach regarding the slurry drum. The problem has been solved now
I used to work on heating furnaces. Isn’t steam used for drying them? It’s mainly the heat of combustion that is utilized, in accordance with the temperature and time parameters specified in the drying curve, to remove the crystalline water from the lining
A steam oven and the steam used for heating it are not the same thing, right?
I guess what you mean is that steam is used for purging before driving or when starting the engine
In fact, it is difficult to control the temperature using fuel gas below 150°C; therefore, steam reverse heating is employed, treating the boiler system as a large steam heater. Where does the smoke here come from? Because you said not to turn on the stove.