论文类型:.研究报告
关 键 词:循环流化床锅炉;磨损;防磨技术;耐火耐磨材料;施工工艺
Title: The circulating fluidized bed boiler prevent grind technology and wear-resistant materials application analysis
ABSTRACT
Protect the environment and save energy is nowadays in the world each country to confront the long-term development of the intersection of a problem, China is the long-term development of the first consideration, based on this point in circulating fluidized bed boiler technology pop to its high efficiency low pollution clean burning branches, more and more attention of operation. This technology in international boiler, industrial boiler and waste treatment and utilization, etc have gained wide commercial applications. In this respect in the research, development and application also gradually arisen, there have been hundreds of 100,000 kw level circulating fluidized bed boiler, currently in operation of 300,000 kw level large CFB boilers XuWan became domestic by independent research and development and has invested more than 10 sets of running or are manufacturing, and future years will still be circulating fluidized bed boiler is an important period of high-speed development. From our coal carbon resources type, performance and distribution structure look, circulating fluidized bed boiler in China's development is completely suitable for China's national conditions and development trends.
Although circulating fluidized bed boiler fuel adaptable, burning with high efficiency, low pollution emission, and many other development advantages, but there is also restrict its development adverse factors. In our country has been put into operation in the circulating fluidized bed boiler, there are many components work in high temperature, high solids continuously scouring, under the action of boiler equipment wear is a very serious problem, often caused by boiler stop due to wear. According to statistics, China's current power station boiler heating caused by the wear boiler stop boiler accidents accounted for about 1/2 of total accident. Therefore, understanding, heating wear rules out the main wear parts and reason, choose reasonable prevent grind materials, take further abrasion measures of circulating fluidized bed boiler, the promotion application and stable operation is a very realistic and important problem.
Based on the investigation data, from the circulating fluidized bed boiler, combined with the wear mechanism of production in recent years, the design of pot 300MW circulating fluidized bed boiler's actual operation situation, for the circulating fluidized bed boiler is easy worn parts, used prevent grind measures, various parts of refractory wear-resistant materials selection, refractory wear-resisting material construction craft, refractory wear-resisting material maintenance methods of fully detailed analysis, found the circulating fluidized bed boiler wear main laws, and put forward the corresponding control methods and measures.
TYPE OF THESIS: Research report
KEY WORDS: The circulating fluidized bed boiler; Wear; Prevent grind technology; Refractory wear-resistant materials; Construction technology