Guohua Power mill and boiler combustion technology passed technical appraisal
- Categories:Industry Trends
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- Time of issue:2015-07-17
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(Summary description)Recently,theChineseSocietyofElectricalEngineeringinBeijingorganizeda"mediumspeedgrindingpowdersystemwithultra-high-waterboilersburningbrowncoaltechnologyresearchandapplication"projecttechnicalappraisa
Guohua Power mill and boiler combustion technology passed technical appraisal
(Summary description)Recently,theChineseSocietyofElectricalEngineeringinBeijingorganizeda"mediumspeedgrindingpowdersystemwithultra-high-waterboilersburningbrowncoaltechnologyresearchandapplication"projecttechnicalappraisa
- Categories:Industry Trends
- Author:
- Origin:
- Time of issue:2015-07-17
- Views:0
Information
Recently, the Chinese Society of Electrical Engineering in Beijing organized a "medium speed grinding powder system with ultra-high-water boilers burning brown coal technology research and application" project technical appraisal. The project is led by the Guohua Power Company, Guohua Electric Power Research Institute, CSEC Guohua (Indonesia) South Sioux Power Co., Ltd. to participate. The project boiler combustion adjustment and mill operation adjustment, the successful implementation of the ultra-high-speed mill boiler combustion moisture (52-54%), low-quality lignite, coal drying solve potential safety, environmental protection and a series of major issues, power plants achieve profitability for the country to win the honor.
China Electric Power Planning Design Vice President and Chief Engineer of the total Sun Rui served as chairman of the appraisal committee, the National Electric Power Technology Market Association vice chairman Jiang Zhesheng consultant from Thermal Engineering, Tsinghua University, Zhejiang University, Mechanical and Energy Engineering, North China Electric Power Energy Power and Mechanical Engineering, University, Shanghai Power Equipment Research Institute, Datang International Power Generation Co., Ltd., North China Electric Power Research Institute Co., Ltd., Xi'an Thermal Power Research Institute Co., Ltd., China Huadian Engineering (Group) Co., Ltd. 10 well-known experts to identify any members of the Commission.
At the meeting, the evaluation committee heard a report on the work of the project, technical reports, run reports, economic analysis introducing the report, Novelty and application of science and technology. After questions and discussion, appraisal committee that: the project research results achieved in the speed pulverizing system of boilers fueled with ultra-high moisture lignite safe and stable operation of high moisture lignite provides similar reference in Thermal Power Plant, the overall reach the international advanced level.
God Guohua Indonesia (South Sioux) power generation company is Shenhua first "coal integration" of foreign investment projects. Plant a project of 2 × 150MW coal-fired generating units, boilers burning lignite coal mine pit nearby. Positive pressure boiler milling system is designed to direct blow pulverizers. Indian Muslim Indonesia Guohua coal power project 2 × 150MW power project coal drying system that uses steam tube rotary dryer process for drying high moisture Indonesia local lignite. Design conditions: moisture drying lignite from 55.3% to 37.8% of coal excavated coal mine coal by steam dryer will dry the moisture from the 55.3% 37.8% fell again into the boiler coal pulverizers fight through the milled into BOILER. After the crew discovered coal mine coal production reached 63 and above water far exceeds the design of coal quality, when the steam drier coal is dried to 63% moisture around 48% of water, coal dryers to fight like a coal conveyor belt along the Black Dragon, badly, can not control dust emissions, deposition to go, where fire or explosion occurs, the power plant personnel every day, everywhere fire, explosion-proof confusion.
By running burner adjustments and milling system related tests, with a direct blow pulverizers boiler combustion achieved 52-54% of the poor quality of the ultra-high moisture lignite, from the impossible into reality, the application of technology for the power to open a precedent , to promote ultra-low-grade lignite moisture provides detailed operational data and practical experience in power plant applications. Through experiments using primary air ratio increases, improving pulverized particle size and other measures to achieve a safe and stable operation of the milling system; furnace combustion by adjusting the tests to determine a reasonable secondary air ratio, oxygen and furnace exit combustion temperature and other operating parameters of the boiler to achieve security, stability and efficient operation. The practical operation shows that the technology is reliable research to effectively improve the reliability of the power plant unit operation, economic and social benefits significantly.
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