PHOSPHATE FERTILIZER, AND METHOD FOR PRODUCING PHOSPHATE FERTILIZER
    1.
    发明公开
    PHOSPHATE FERTILIZER, AND METHOD FOR PRODUCING PHOSPHATE FERTILIZER 审中-公开
    PHOSPHATDÜNGERUND VERFAHREN ZUR HERSTELLUNG EINESPHOSPHATDÜNGERS

    公开(公告)号:EP2725001A1

    公开(公告)日:2014-04-30

    申请号:EP12805013.5

    申请日:2012-06-27

    摘要: Provided are a phosphate fertilizer that has a high ratio of citric acid-soluble phosphate and can contribute to phosphorus resource saving and energy saving in fertilizer production, and a production method for a phosphate fertilizer. The phosphate fertilizer is obtained by firing a mixed raw material containing: sewage sludge and/or a sewage sludge-derived material; and a calcium source. In addition, the phosphate fertilizer has a content of CaO of 35 to 60 mass%, a content of SiO 2 of 5 to 35 mass%, a content of P 2 O 5 of 5 to 35 mass%, and a content of components except for CaO, SiO 2 , and P 2 O 5 of 30 mass% or less. Further, the production method for a phosphate fertilizer includes: a mixing step of mixing sewage sludge and/or a sewage sludge-derived material with a calcium source and optionally with a silica source to obtain a mixed raw material; and a firing step of firing the mixed raw material by using a firing furnace at 1,150 to 1, 350°C to obtain the phosphate fertilizer as a fired product.

    摘要翻译: 提供了具有高柠檬酸可溶性磷酸盐比例的磷酸盐肥料,可以有助于磷肥资源节约和节约化肥的生产,以及磷肥的生产方法。 通过焙烧含有污水污泥和/或污水污泥来源的材料的混合原料获得磷酸盐肥料; 和钙源。 另外,磷酸肥料的CaO含量为35〜60质量%,SiO 2的含量为5〜35质量%,P 2 O 5的含量为5〜35质量%,除了 对于CaO,SiO 2和P 2 O 5为30质量%以下。 此外,磷酸肥料的制造方法包括:将污水污泥和/或污水污泥来源的材料与钙源和任选的二氧化硅源混合以获得混合原料的混合步​​骤; 以及通过使用1150〜1 350℃的烧成炉对混合原料进行烧成,从而得到作为烧成品的磷酸盐肥料的烧成工序。

    VALUABLE SUBSTANCE RECOVERY DEVICE AND RECOVERY METHOD
    2.
    发明公开
    VALUABLE SUBSTANCE RECOVERY DEVICE AND RECOVERY METHOD 审中-公开
    VORRICHTUNG UND VERFAHREN ZURRÜCKGEWINNUNGVON WERTSTOFFEN

    公开(公告)号:EP2730329A1

    公开(公告)日:2014-05-14

    申请号:EP12807052.1

    申请日:2012-07-03

    摘要: [PROBLEM] To provide a valuable substance recovery device, etc. that can keep equipment costs and operation costs low and can reduce a burden of gas processing after secondary combustion.
    [SOLUTION] A valuable substance recovery device 1 provided with a calcining furnace 11 that is attached to a cement firing device 2 and a return path 12 for returning an exhaust gas from the calcining furnace to the cement firing device. By effectively utilizing heat generated by the cement firing device in the calcining furnace for recovering valuable substances, equipment for supplying fuel for the calcining furnace becomes unnecessary and operation costs can be kept low. Acidic gases can be processed using a large amount of CaO present inside the cement firing device, making special processing device for processing the acidic gases unnecessary and making it possible to reduce equipment costs and operation costs significantly compared to the past. The calcining furnace is able to take in heat from a lower portion thereof and discharge the same from the return path, and can return the calcining furnace exhaust gas to an 800°C or higher temperature region of the cement firing device via the return path.

    摘要翻译: [问题]提供可以将设备成本和操作成本保持在较低水平的有价值的物质回收装置等,并且可以减少二次燃烧之后的气体处理负担。 [解决方案]一种有价值的物质回收装置1,其具有安装在水泥点火装置2上的煅烧炉11和用于将废气从煅烧炉返回到水泥点火装置的返回路径12。 通过有效利用煅烧炉中的水泥烧成装置产生的热量来回收有价值的物质,用于为煅烧炉供给燃料的设备变得不必要,并且可以降低运行成本。 酸性气体可以使用在水泥烧成装置内部存在的大量的CaO进行处理,从而不需要加工酸性气体的特殊处理装置,与以往相比可以显着地降低设备成本和运行成本。 煅烧炉能够从其下部吸收热量并将其从返回路径排出,并且可以通过返回路径将煅烧炉废气返回到水泥点火装置的800℃或更高温度的区域。