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1. 发明授权

US5671688A Process for treating slag from refuse incineration plants 失效
标题翻译：垃圾焚烧炉渣处理工艺
公开(公告)号：US5671688A
公开(公告)日：1997-09-30
申请号：US568837
申请日：1995-12-07
申请人： Markus Burgin , Bruno Carcer , Alfred Edlinger , Jean-Marc Martelli
发明人： Markus Burgin , Bruno Carcer , Alfred Edlinger , Jean-Marc Martelli
IPC分类号： B03B9/04 , C04B5/00 , F23J3/00
CPC分类号： B03B9/04
摘要： In the process for treating slag from refuse incineration plants, the crude slag, after passing through the firing grate, is separated into at least two fractions directly and without previous quenching in a water bath. These two fractions are further processed separately, the coarse fraction being fed to a wet deslagger. For optimum separation of the two fractions, the first fraction, having a particle size preferably up to 32 mm, is separated off in a first screening stage and the screen oversize of the first screening stage is fed to the wet deslagging. The screen undersize and if appropriate the material passing through the firing grate are fed to a second screening stage to separate off the fine fraction 0 . . . 2 mm. The screen oversize of the second screening stage, if appropriate after removing metallic and inert materials, is mechanically comminuted. In an optional third screening stage (8), the fine fraction 0 . . . 2 mm is fed together with the screen undersize of the second screening stage to a special treatment.
摘要翻译：在从垃圾焚烧厂处理炉渣的过程中，粗渣经过烧结炉排后直接分离成至少两个馏分，在水浴中不经过淬火。这两个级分进一步分开处理，粗级分进料到湿式除渣器。为了最佳分离两个级分，在第一筛选阶段分离具有优选至多32mm的粒度的第一级分，并将第一筛选阶段的筛网过筛进料至湿式除渣。筛网尺寸过小，如果合适，将通过烧结炉排的材料进料到第二筛选阶段以分离细馏分0。。。 2毫米。在除去金属和惰性材料之后，如果合适的话，第二筛选阶段的筛网尺寸被机械粉碎。在可选的第三筛选阶段（8）中，细分为0。。。 2毫米与第二筛选阶段的筛网过小一起进行特殊处理。

2. 发明授权

US06036484A Process for reprocessing slag and/or ash from the thermal treatment of refuse 失效
标题翻译：垃圾热处理渣和/或灰渣的再处理工艺
公开(公告)号：US06036484A
公开(公告)日：2000-03-14
申请号：US169139
申请日：1998-10-09
申请人： Bruno Carcer , Hans Ruegg , Christian Steiner , Beat Stoffel
发明人： Bruno Carcer , Hans Ruegg , Christian Steiner , Beat Stoffel
IPC分类号： C04B5/00 , F23G5/027 , F23G5/14 , F23G5/16 , F23G5/20 , F27B15/00
CPC分类号： F23G5/027 , F23G5/16 , F23G5/20 , F23G2209/30
摘要： In a process for reprocessing slag and/or ash from the thermal treatment of refuse, the refuse (1) is pyrolyzed, gasified or partially combusted in a first process step, heavy-metal-containing slag and/or ash (8) having a comparatively high carbon content being formed. Said slag and/or ash (8) is then heated in a rotary kiln (6) to a temperature below the melting temperature of the slag and/or ash (8) in a second process step, the slag and/or ash (8), prior to its discharge from the rotary kiln (6), dwelling sufficiently long in the rotary kiln (6), that the heavy metals present therein are converted into their metallic form by reduction at the carbon endogenous to the slag and the readily volatile heavy metals are transferred to the gas phase and are discharged from the rotary kiln (6) together with the flue gas (9), and finally a slag (15) depleted in heavy metals being discharged from the rotary kiln (6).
摘要翻译：在垃圾热处理后处理炉渣和/或灰渣的过程中，垃圾（1）在第一工艺步骤中被热解，气化或部分燃烧，含重金属的炉渣和/或灰分（8）具有形成比较高的碳含量。然后，所述炉渣和/或灰分（8）在第二工艺步骤中，在回转窑（6）中被加热到低于炉渣和/或灰分（8）的熔化温度的温度，炉渣和/或灰分（8 ）在回转窑（6）排出之前，在回转窑（6）中停留足够长时，其中存在的重金属通过在炉渣内部的碳上还原而易于挥发重金属被转移到气相，并与烟气（9）一起从回转窑（6）排出，最后，从回转窑（6）排出的重金属废渣最终被排出。

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