There will produce large amounts of exhaust gas of 550 ~ 900 ℃ during coking production in coking plant. In order to further recovery coking gas, our company developed the afterburning and non-afterburning horizontal type double (single) drum natural circulation water tube boiler. The boiler can be traditional horizontal layout and new vertical arrangement. Wherein the vertical arrangement boiler novel structure, advanced performance, is a new exclusive patent coking waste heat boiler our company developed. Supplementary fired boiler with automatic coke oven gas burner, coke oven gas in the waste heat recovery boiler or furnace coke combustion and then mixed with the exhaust gas to produce high temperature flue gas heat exchanger into the boiler rated steam.
The new patent waste heat recovery boiler for coking industry has overcome the shortcomings of horizontal single flue or flue waste heat boiler, the mutual organic combination of the main components of the boiler it will be able to function under the same circumstances, the abolition of the outer drop tube furnace centralized heating surface is arranged to simplify the structure of the furnace, to achieve multi-functional combination of components. Highly efficient heat transfer, two stage furnace dust from the function, and also thanks to its new compact, low cost, small footprint and high efficiency, environmental protection, energy saving, it has reached the leading domestic level. The waste heat recovery boiler for coking industry for sale in ZG Boiler has won two national patents: ZL200620030036.5 and ZL200820148479.3.
Waste Heat Recovery Boiler for Coking Industry Features
High heat transfer coefficient
Heat exchangers of waste gas, water and steam are in the outer surface, and the heat pipe is conducted outside of the tube and the exhaust heat of the fins, which increases the heat transfer area, heat strengthened, thus the heat transfer coefficient has been greatly improved.
Anti-fouling, plugging gray, strong corrosion resistance:
By adjusting the ratio of the heat pipe cold section heated surface, the wall temperature can be adjusted to be higher than the dew point of the flue gas temperature or the maximum corrosion zones, can be effectively prevented because the acid dew point of the flue gas and sulfur corrosion, extending the use of heat exchangers life, ensuring the heat exchange efficiency of the heat exchanger.
System to prevent leakage of water vapor
At run time, due to the large number of exhaust gas erosion, even if subject to certain tube damage, it will not cause leakage of gas and water to the cold side hot side which is to ensure the safe operation of the system, and it is different from the general apparatus flue equipment the most important feature.
Small resistance loss applicable to old unit transformation
In general, increasing the waste heat recovery equipment, the hot exhaust gas to increase the resistance at around 1500Pa. Damage to single or multiple heat pipe device does not affect the overall use.