立式烘干机温度控制的优化研究  

Research on Temperature Control Optimization of Vertical Dryer

作　　者：李自成 LI Zicheng(Sinopec Great Wall Energy and Chemical(Ningxia)Co.,Ltd.,Yinchuan,Ningxia 750001,China)

机构地区：[1]中国石化长城能源化工(宁夏)有限公司,宁夏银川750001

出　　处：《自动化应用》2023年第13期132-133,137,共3页Automation Application

摘　　要：电石炉生产使用的炭材最早利用三筒烘干机进行烘干,由于三筒烘干机破碎率达到12%且产量低,无法满足电石炉生产需求。但新建立式烘干机由于进风方式和出料方式设计不合理,经常出现局部超温着火,导致大量的废料排出,既增加物料损耗又增加安全风险。针对立式烘干机运行存在的问题,本文优化温度控制及调节方式,将立式烘干机原有的三进三出布风管道改为四进四出布风方式,并在进风管道上设计增加电动调节阀。将单通道出料改为八通道分区出料,实现烘干机各区域温度的独立控制,以确保烘干机内温度平衡。结果表明,立式烘干机生产运行,炭材烘干后水分达到1%以下。The carbon materials used in the production of calcium carbide furnaces were first dried using a three cylinder dryer.Due to the crushing rate of 12%and low production capacity,the three cylinder dryer cannot meet the production needs of calcium carbide furnaces.However,due to the unreasonable design of the inlet and outlet methods,the newly built vertical dryer often experiences local overheating and ignition,resulting in a large amount of waste discharge,which not only increases material loss but also increases safety risks.In response to the problems existing in the operation of vertical dryers,this paper optimizes temperature control and regulation methods,changing the original three in and three out air distribution pipeline of vertical dryers to four in and four out air distribution mode,and designing and adding electric control valves on the air inlet pipeline.Change the single channel discharge to eight channel zone discharge to achieve independent temperature control in each area of the dryer,ensuring temperature balance inside the dryer.The results show that the vertical dryer operates and the moisture content of the carbon material after drying reaches less than 1%.

关 键 词：立式烘干机 进风方式 出料方式 振动给料机 

分 类 号：TQ174[化学工程—陶瓷工业]