PROCESS AND APPARATUS FOR RECOVERY OF RAW MATERIALS FROM WASTES RESIDUES
    141.
    发明申请
    PROCESS AND APPARATUS FOR RECOVERY OF RAW MATERIALS FROM WASTES RESIDUES 失效
    从废物和残留物中回收原料的工艺和设备

    公开(公告)号:US20020025283A1

    公开(公告)日:2002-02-28

    申请号:US09429533

    申请日:1999-10-28

    Abstract: A process is disclosed for recovering raw materials, in particular heavy metals such as chromium, by separation from waste and residues, wherein a liquid or viscous starting mixture and/or a starting mixture composed of crushed or ground components is first prepared. The invention is characterized in that the raw materials are separated by a thermochemical treatment. The liquid, viscous and/or solid starting mixture is first mixed with additives, depending on its composition, then subjected to a thermal treatment in an oven. The atmosphere in the oven flows through the starting mixture and the suspended materials thus generated as flakes or dust are conveyed out of the oven through a filter installation with several stages in which they are separated from the waste gas. The first filter is designed as a hot filter, after which the waste gas is cooled and after flowing through at least a second filter, pre-heated and then burnt at a high temperature.

    Abstract translation: 公开了通过与废物和残渣分离来回收原料,特别是重金属如铬的方法,其中首先制备由粉碎或研磨组分组成的液体或粘性起始混合物和/或起始混合物。 本发明的特征在于通过热化学处理分离原料。 首先将液体,粘性和/或固体起始混合物与添加剂混合,这取决于其组成,然后在烘箱中进行热处理。 烘箱中的气氛流过起始混合物,并且由此产生的悬浮物质以片状或灰尘的形式通过过滤装置从烘箱输送出去,其中它们与废气分离。 将第一过滤器设计为热过滤器,然后将废气冷却并流过至少第二过滤器,预热,然后在高温下燃烧。

    Closed cycle waste combustion
    142.
    发明授权
    Closed cycle waste combustion 有权
    封闭循环废气燃烧

    公开(公告)号:US06216611B1

    公开(公告)日:2001-04-17

    申请号:US09489081

    申请日:2000-01-21

    Abstract: An apparatus for treating organic waste material characterized by high ash content is disclosed. The apparatus includes a slagging combustor for burning the organic waste material to produce a slag of molten inorganic ash and exhaust gases, a cooler for receiving the exhaust gases from the combustor and cooling the exhaust gases, a condenser for receiving cooled exhaust gases from the cooler and drying the cooled exhaust gases, an exhaust gas recirculation conduit for receiving a first portion of cooled and dried exhaust gases from the condenser, and a source of concentrated oxygen gas in fluid communication with the exhaust gas recirculation conduit for adding concentrated oxygen gas to the first portion of cooled and dried exhaust gases to create a gas mixture that is added to the combustor through the exhaust gas recirculation conduit, wherein the source of concentrated oxygen gas includes a valve responsive to an oxygen sensor in the exhaust gas recirculation conduit for regulating the flow of concentrated oxygen gas into the exhaust gas recirculation conduit.

    Abstract translation: 公开了一种用于处理灰分含量高的有机废料的处理装置。 该装置包括用于燃烧有机废料以产生熔融无机灰和废气的炉渣的造渣燃烧器,用于接收来自燃烧器的废气和冷却废气的冷却器,用于从冷却器接收冷却的废气的冷凝器 以及干燥冷却的废气,废气再循环管道,用于从冷凝器接收冷却和干燥的废气的第一部分,以及与废气再循环管道流体连通的浓缩氧气源,用于将浓缩的氧气加入到 冷却和干燥废气的第一部分以产生通过废气再循环管道添加到燃烧器中的气体混合物,其中浓缩氧气源包括响应于废气再循环管道中的氧传感器的阀,用于调节 浓氧气流入排气再循环管道。

    Method of burning waste, especially PVC waste, comprised essentially of
plastic
    144.
    发明授权
    Method of burning waste, especially PVC waste, comprised essentially of plastic 失效
    燃烧废物,特别是PVC废物的方法,基本上由塑料组成

    公开(公告)号:US5551358A

    公开(公告)日:1996-09-03

    申请号:US313025

    申请日:1994-11-18

    CPC classification number: F23G7/12 C10L10/00 F23G5/02 F23G2201/701

    Abstract: A method of burning waste comprised essentially of plastic, especially PVC waste. The waste is burned in a revolving cylindrical furnace accompanied by the addition to the waste of at least one finely ground solid additive having at least one component with a melting temperature higher than the melting temperature of the plastic of the waste.

    Abstract translation: PCT No.PCT / EP94 / 00156 Sec。 371日期:1994年11月18日 102(e)1994年11月18日日期PCT 1994年1月21日PCT PCT。 公开号WO94 / 17332 PCT 日期1994年8月4日一种燃烧废物的方法,主要包括塑料,特别是PVC废物。 废物在旋转的圆柱形炉中燃烧,伴随着浪费至少一种精细研磨的固体添加剂,其具有至少一种熔点高于废物塑料的熔融温度的组分。

    Thermal and chemical remediation of mixed waste
    145.
    发明授权
    Thermal and chemical remediation of mixed waste 失效
    混合废物的热化学修复

    公开(公告)号:US5335609A

    公开(公告)日:1994-08-09

    申请号:US55360

    申请日:1993-04-29

    Abstract: A process and system for treating organic waste materials without venting gaseous emissions to the atmosphere. A fluidized bed including lime particles is operated at a temperature of at least 500.degree. C. by blowing gas having 20%/70% oxygen upwardly through the bed particles at a rate sufficient to fluidize same. A toxic organic waste material is fed into the fluidized bed where the organic waste material reacts with the lime forming CaCO.sub.3. The off gases are filtered and cooled to condense water which is separated. A portion of the calcium carbonate formed during operation of the fluidized bed is replaced with lime particles. The off gases from the fluidized bed after drying are recirculated until the toxic organic waste material in the bed is destroyed.

    Abstract translation: 一种用于处理有机废物的过程和系统,而不会将气体排放物排放到大气中。 包含石灰颗粒的流化床在至少500℃的温度下通过以足以使其流化的速率向上穿过床颗粒而吹入具有20%/ 70%氧气的气体。 将有毒有机废料送入流化床,其中有机废料与形成CaCO3的石灰反应。 将废气过滤并冷却以冷凝分离的水。 在流化床操作期间形成的一部分碳酸钙被石灰颗粒代替。 干燥后来自流化床的废气再循环,直到床中的有毒有机废物被破坏。

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