涡北分厂加药系统的优化改造

针对淮北选煤厂涡北分厂原加药系统存在的加药系统不完善,药剂供给难以保障,药效难以充分发挥,药剂配比、加药位置不合理等问题,通过安装液位超高低报警装置和液位检测装置,增粗管道,提高输药泵供应能力,更换搅拌电机,改变传动方式,增设循环桶和稳流板,选煤补水改为矿井水,改变药剂配比和药剂添加方式,优化加药位置等措施对选煤厂加药系统进行了改造。改造完成后,涡北分厂实现了加药系统的操作自动化,降低了工人劳动强度,提高了安全系数;保证了药剂供应的稳定、充足;促进了药剂溶解,稳定了絮凝剂浓度;有效提高了煤泥沉降速度,增加了药效,保证了循环用水水质。选煤厂全年节省药剂费用59.40万元,减少工资支出6.00万元,经济效益显著。 There are lots of problems in dosing system in Wobei coal preparation plant,such as insufficient reagent supplement,unobvious reagent effect,unreasonable materials ratio and dosing points.To resolve those problems,install liquid level alarm devices and detection devices as well as recirculating barrel and tranquilizer,thicken pipelines,improve the infusion pump pipeline power,adopt new mixer and transmission model,utilize mine water as make-up water for preparation,optimize reagent ratio,dosing methods and points.After transformation,the dosing system is more automatic,reduce the labor intensity,improve the security coefficient and setting velocity of slime water,the reagent dissolve fully and their effect is more obvious,the mass fraction of flocculant becomes steadier.The plant saves reagent cost 5.94×105 yuan,payload 6.00×104 yuan each year