Pulverizing System Test for Blended Burning of Low-Quality Lignite Coal and Result Analysis
One of the main measures to reduce the cost of the coal-fired power plant is burning of low-priced and lower-quality coal. The Panshan Power Generation Company chooses blended combustion of the low-quality coal of high moisture, high sulfur and low heat value from Inner Mongolia with high-quality coal in a bid to reduce the cost of generation. To ensure safety and economy of combustion in the boiler, milling tests are conducted on the pure lignite coal and other two kinds of mixed coal (low-quality coal and high quality coal blended at the ratios of 1:3 and l:l respectively) before mass blending. The test results prove the feasibility of application of the blended burning technology in the coal-fired power plant. Analysis is also made on the economical efficiency of the blended burning technology, and the test data and the analysis results can provide useful information and reference for similar generating units in blended coal burning.
power generation costslow-quality coalblending ratioeconomic analysis