The Technical and Economical Analysis on the Application of FGC in Large Scale Coal-fired Units

摘要

In this paper we describe that large scale coal-fired units are designed basing on the working condition of burning several coals because of the internal coal resources status in China at present. It differs a lot for ESP to collect the dust when using different coals. Taking the dedusting technology of ESPs equipped with FGC system of Guangdong Pinghai Power Station 2×1000 MW units as an example, after adopting combined dedusting technology, the ESP can be designed basing on the easily dedusting coal, which reduces the overall investment of dedusting system. FGC system is completely separated from ESPs, which has the advantage of flexible operation. Furthermore, compared with other dedusting technologies, it keeps the characteristic of low pressure loss, high reliability, low cost of running and maintenance, which has competitive advantages in technology and economy.