茂名油页岩燃烧特性及其大型CFB锅炉设计分析  

Combustion characteristics and design analysis of a large circulating fluidized bed boiler for Maoming oil shale

作　　者：田红[1,2] 杨晨[1] 廖正祝[2] 

机构地区：[1]重庆大学动力工程学院,重庆400030 [2]茂名学院机电工程学院,广东茂名525000

出　　处：《重庆大学学报（自然科学版）》2009年第5期593-597,603,共6页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50576106)

摘　　要：为了有效地利用劣质燃料油页岩,采用ZRY-2P综合热分析仪对茂名油页岩进行热重试验,利用热重试验数据分析了油页岩的燃烧特性,并对燃烧特性曲线进行了分析。结果表明,油页岩燃烧分为低温段和高温段,低温段挥发分的燃烧为后期高温段固定碳的前期燃烧提供了热量,试样S3的综合燃烧性能最好;试样S1的热重曲线变化异常陡峭,所有试样的微商热重曲线均呈现出挥发分燃烧和固定碳燃烧的2个峰。在此基础上,对大型油页岩循环流化床(circulatingfluidized bed,CFB)锅炉的设计进行了分析,同时提出掺烧石油焦的大型油页岩CFB锅炉的设计新方案并对其优势进行了分析。To use low-calorie fuel oil shale efficiently, a thermogravimetric analysis experiment of Maoming oil shale is performed using the ZRY- 2P synthetic thermal analytical instrument. Combustion characteristics are analyzed, and the combustion characteristic curves are investigated. The results show that oil shale combustion is split into low-and-high-temperature phases. The combustion of oil shale volatiles in the low-temperature phase supplies the caloric energy necessary to burn the oil shale fixed carbon in the high-temperature phase. The general combustion performance of S3 is the best. The thermogravimetric curve of S1 changes very abruptly. The differential thermogravimetric curves of all the samples have two peaks of volatiles combustion and fixed＇,carbon combustion. Based on that, the design of large Maoming oil shale circulating fluidized bed （CFB） boiler was analyzed, a new project for co-combustion of petrol coke and oil shale in a CFB boiler was put forward, and its advantages analyzed.

关 键 词：油页岩 燃烧特性 热重分析 循环流化床锅炉 

分 类 号：TK229.66[动力工程及工程热物理—动力机械及工程]