客服热线:18202992950

METHOD OF CONTINUOUSLY DRY ALLOY SLUDGE BY ROTARY KILN 发明申请

2023-06-03 1590 213K 0

专利信息

申请日期 2025-07-11 申请号 KR1020060070118
公开(公告)号 KR1020070014062A 公开(公告)日 2007-01-31
公开国别 KR 申请人省市代码 全国
申请人 HAYASHI INC
简介 PURPOSE : A method that continuously carries out drying safely and efficiently without explosion such as steam explosion and the like, or adhesion of the metal sludge into a retort by allowing the metal sludge to be dried by a rotary kiln in reusing of metal sludge is provided. CONSTITUTION : A method for continuously treating metal sludge comprises : drying a metal sludge to a moisture content of 30%% or less; loading the dried metal sludge into a rotary kiln; and heat-treating the dried metal sludge at a high temperature in the rotary kiln until a moisture content of the metal sludge becomes 10%% or less. The metal sludge is a sludge containing rare earth magnetic alloys. The metal sludge has a moisture content of 20%% or less after drying and has a moisture content of 5%% or less after heat treatment at high temperature. The method further comprises finally drying the heat-treated metal sludge at a temperature of 100 to 200 deg.C for 10 minutes to 5 hours after heat treatment at high temperature. The drying is performed by heating the metal sludge in a drying furnace at a temperature of 50 to 500 deg.C and an atmospheric pressure or a reduced pressure for 10 minutes to 5 hours. The heat treatment is performed by directly heating the metal sludge in a rotary kiln at a temperature of 400 to 1000 deg.C and an atmospheric pressure or a reduced pressure for 10 minutes to 3 hours. © KIPO 2007


您还没有登录,请登录后查看下载地址


反对 0举报 0 收藏 0 打赏 0评论 0
下载排行
网站首页  |  关于我们  |  联系方式  |  使用协议  |  版权隐私  |  网站地图  |  排名推广  |  广告服务  |  积分换礼  |  网站留言  |  RSS订阅  |  违规举报  |  京ICP备2021025988号-4