The flue at Datang Thermoelectric Power Plant is a crucial piece of infrastructure. Its 5100 mm diameter indicates a significant processing capacity. This flue is primarily used to exhaust waste gases from the thermoelectric power generation process, ensuring environmental compliance. The flue's length varies, ranging from several hundred meters, ensuring efficient exhaust and heat dissipation. The entire flue is constructed from high-quality, corrosion-resistant, and high-temperature-resistant materials, guaranteeing long-term stable operation. Furthermore, the flue's design fully considers safety factors to ensure worker safety. In summary, the 5100 mm diameter flue at Datang Thermoelectric Power Plant plays a vital role in the plant's operation, ensuring smooth production and environmental protection. The specific length must be determined based on the actual engineering situation and cannot be precisely stated here.