钢铁企业烧结余热发电技术研究-论文.doc

山东科技大学学士学位论文 摘要 PAGE 摘要 烧结余热发电技术是一项将烧结废气余热资源转变为电力的节能技术。由于国内烧结余热发电起步较晚，因此还存在回收率较低等很多问题，现对现有的余热发电系统进行分析，提出新的改进措施，从而提高余热资源回收率及机组的发电功率。 本研究通过分别分析烧结余热发电双压系统、单压系统、闪蒸系统和补燃系统四种余热发电系统的热力学和经济性计算，发现对于钢铁企业，双压系统的热力特性和经济性最佳，排出的污染物较少，是最合理的设计方案。最后，对于当前技术条件下烧结余热发电技术应用难点，本设计通过设计余热发电流程，严格控制余热发电环节，以优化余热发电方案，取得更好的经济及环境效益。 关键词：余热发电、烧结、双压 ABSTRACT Sintering?waste heat power generation?technology is?a?sintered?exhaust heat resources into?electricity?saving technology.?As domestic?sintering?waste heat power generation?started late, so?there are still?many problems such as?low recovery rate, now we?existing analysis?cogeneration?systems, propose new? measures for improvement, thereby improving?waste heat?recovery?and?power generation?units. ?This study?analyzed separately?dual-pressure?sintering?waste heat power generation?system, a single?pressure system,?flash?system?and the complement? system, fuel?system,?four kinds of?cogeneration?thermodynamic?and economic? calculations and found that?the?iron and steel enterprises, dual?pressure system? and economy of?the thermodynamic?properties is best,?fewer?pollutants?dischar- ed,?is the most reasonable?design.?Finally, the sintering waste heat power genera- tion technology difficulties of current technical conditions, this design through the design of waste heat power generation process, strict control of waste heat power generation process, in order to optimize the waste heat power generation system, and obtain better economic and environmental benefits. Key words: waste heat power generation, sintering, dual-pressure 山东科技大学学士学位论文 目录  目录 TOC \o 1-2 \h \z \u 1绪论 1 1.1研究背景 1 1.2烧结余热发电技术国内外研究现状 3 1.3烧结余热发电研究意义 4 1.4研究内容 5 2烧结余热发电系统分析 6 2.1烧结余热发电系统 6 2.2烧结余热发电烟气系统 8 2.3烧结余热发电热力系统分析方法 9 2.4烧结余热发电四种热力系统热力学分析 13 2.5烧结余热发电四种热力系统经济性分析 22 3烧结余热发电设备 26 3.1选型原则 26 3.2部分主要设备的选型要求及