The hot blast stove is mainly a heating and drying equipment, so when we use it for a period of time, it needs to be cleaned, because after the hot blast stove is in normal operation and used for a period of time, the internal water boils and evaporates, which will form scale attached to the furnace wall . The scale is the source of the problem, so it is necessary to clean the hot blast stove regularly to avoid a large amount of scale inside.
1. Waste a lot of fuel
The furnace is only a few tenths of the scale in steel. The thermal conductivity is so that when scaling occurs on the heating surface, the heat transfer device is blocked. Therefore, in order to maintain the furnace in normal use, it is necessary to increase the fire side The temperature, of course, needs to be noted that when the more energy is thicker its scale when needed, but also a lot of fuel is wasted.
2. The steel plate is easy to be burned due to the overheated tube
After the hot blast stove is fouled, when the scale becomes deeper, the heat conduction effect will become worse and the temperature on the fire side will be higher; generally the temperature on the fire side is about 900° and the temperature on the water side is about 190°. When fouling occurs, 1mm fouling can easily increase the temperature by about 140°, and the more fouling, the easier it is to burn out certain metals.
3. Increased maintenance cost and reduced service life
The scale of hot blast stove accidents caused by the accident accounted for about one third of the total number of hot blast stove accidents, not only causing equipment damage, but also threatening personal safety. In order to ensure the normal use of the equipment, it is necessary to carry out regular maintenance on the equipment to increase the service life of the equipment.
It can be seen that it is necessary to clean the hot blast stove regularly. When we use it, we always pay attention to whether there is scaling and other equipment problems.
