The market demand for coal has increased and coal price was stable. The market share of large and medium-sizedcoal enterprises was increased while their loss has decreased.
煤炭市场需求增加，煤炭价格趋稳，大中型煤炭企业市场份额增加而亏损减少。
2
The paper introduces the typical process flow and operating principle and main renovation contents of water dust scrubber for medium and small sizedcoal burning boilers.
着重介绍了中小型燃煤锅炉麻石水膜除尘器脱硫改造技术的典型工艺流程、工作原理、主要改造内容。
3
The paper introduces the flue gas desulfurization technology for coal fired boilers and also the prevention and treatment of SO2 pollution of small and medium sizedcoal fired boilers.