The technical renovation project started in February 2010 and was completed on April 25. It is currently in use. The project makes use of the convenient conditions for natural gas to settle in the Wuda Industrial Park and introduces natural gas as a clean energy source for direct use as a drying gas for indigo granulation. Due to the long-term use of coal-fired heating for granulation and drying in the indigo industry, heated exhaust gas contains a large amount of fumes and is directly emitted into the atmosphere, causing waste of heat and air pollution. Through the implementation of technological transformation projects, on the one hand, heat sources can be effectively utilized and energy waste can be reduced. On the other hand, hot air after natural gas combustion directly heats the materials, greatly reducing the emission of major pollutants such as sulfur dioxide.
It is understood that this technological upgrading project is the first application in the indigo industry, which marks a new stage in the clean production of indigo, and at the same time has played a role in promoting pollutant emission reduction and solving the problems between “environmental constraints†and “economic developmentâ€. Important demonstration role.
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