浅谈LBTF2750型推动式篦式冷却机技术改造  

Discussion on the Technical Transformation of LBTF2750 Pusher Grate Cooler

作　　者：甘天锦 阮黎明 GAN Tianjin;RUAN Liming(Gansu Jinchang Cement(Group)Co.,Ltd.,Jinchang Gansu 737200,China)

机构地区：[1]甘肃省金昌水泥(集团)有限责任公司,甘肃金昌737200

出　　处：《水泥技术》2023年第5期62-67,共6页Cement Technology

摘　　要：LBTF2750型充气梁推动式篦式冷却机存在急冷篦床结构及配风设计不合理,二、三次风温低,易出现“风短路”及内漏风、充气梁与篦板配套设计有缺陷等问题,无法满足窑提产后的生产需求。通过更换新的急冷篦床并调整风机配置,将活动篦床一段充气梁改为风室供风,拆除并修正急冷篦床耐磨墙,增设“推雪人”装置等措施,有效解决了上述问题。改造后,急冷篦床料层厚度可控制在800~1000mm,篦下风量无法吹穿料层;二次风温>1040℃,三次风温>920℃;水泥磨台时产量提高了5%,篦冷机热回收效率和冷却效率提高,提产增效效果明显。The LBTF2750 inflatable beam pusher grate cooler has issues with the structure of the rapid cooling grate bed and the unreasonable air distribution design.The secondary and tertiary air temperatures are low,leading to"air escape branch"and internal air leakage.Additionally,there are design flaws in the matching of the inflatable beam and the grate plate,which cannot meet the production requirements after kiln production.By replacing the rapid cooling grate bed and adjusting the fan configuration,converting the inflatable beam of the movable grate bed into an air chamber for air supply,demolishing and correcting the wear-resistant wall of the rapid cooling grate bed,and adding a"snow pusher"device,these problems have been effectively solved.After the transformation,the thickness of the material layer on the rapid cooling grate bed can be controlled within 800-1000mm,and the air flow under the grate cannot blow through the material layer.The temperature of the second air is above 1040℃,and the temperature of the tertiary air is above 920℃.The production output during cement grinding has increased by 5%,and the heat recovery efficiency and cooling efficiency of the grate cooler have improved significantly,resulting in obvious production increase and efficiency improvement.

关 键 词：急冷篦床 充气梁 热回收效率 冷却效率 节能减排 

分 类 号：TQ172.622.4[化学工程—水泥工业]