风扇磨煤机风粉比例电动控制器的应用研究  

Study of Automatic Proportion Distributor of Air and Coal-powder of Fan Mill

作　　者：王欣[1] 康龙[2] 衣心亮 张树东 

机构地区：[1]吉林省电力科学研究院,吉林长春130021 [2]双辽发电厂,吉林双辽136400 [3]长春第一热电有限责任公司,吉林长春130052

出　　处：《吉林电力》2004年第2期20-23,共4页Jilin Electric Power

摘　　要：针对风扇磨煤机出口一次风风粉比例经常出现失衡的状况,提出一种新型自动可调式风粉比例分配装置,能够在运行中对风扇磨煤机出口风粉分配进行调节。通过试验认为该装置达到了调节火焰中心高度、减少飞灰及炉渣含碳量、提高煤粉燃烬度的目的,从而解决了锅炉燃用混煤或低负荷运行时,主、再热汽温低,飞灰及大渣含碳量高以及燃烧稳定性差等问题,有效提高了锅炉机组运行的经济性。Aimed at the unbalanced proportion of air and coal-powder, a new type automatic proportion distributor is proposed. The distributor can adjust the distribution of air and coal-powder when the boiler is running. The position of flame center is regulated and the carbon-contents of fly ash and slag are reduced by testing. The problems are solved that there are fewer adjusting methods for burning in boilers with fan-grinders milling system and economy and stability of boiler in low load. So it effectively increases thermal efficiency.

关 键 词：锅炉 风扇磨煤机 风粉比例电动控制器 直吹式制粉系统 给煤机 

分 类 号：TK223.25[动力工程及工程热物理—动力机械及工程]