Pulverized coal combustion apparatus
    51.
    发明授权
    Pulverized coal combustion apparatus 失效
    粉煤燃烧设备

    公开(公告)号:US4881474A

    公开(公告)日:1989-11-21

    申请号:US253675

    申请日:1988-10-05

    IPC分类号: F23C99/00 F23D1/00

    CPC分类号: F23D1/00

    摘要: A pulverized coal combustion apparatus comprises a burner through which pulverized coal and carrier air are passed to be burnt in a combustion chamber, and a flame retainer disposed at an end of the burner. The flame retainer includes a flared tube and an annular plate, which plate has a plurality of radially inwardly projecting parts equiangularly spaced from each other. The annular plate comprises a plurality of ceramic pieces and a plurality of fastener elements, both of which are arranged and assembled alternately to form the annular plate. Each ceramic piece is so shaped that it projects radially inwardly to serve as the projecting part when assembled. The ceramic piece has at opposite sides thereof smoothly curved edge surfaces, and the fastener element has at opposite sides thereof smoothly curved edge surfaces which are engaged with the curved edge surfaces of neighboring two ceramic pieces.

    Rubber composition for electromagnetic wave absorber and electromagnetic wave absorbing sheet
    60.
    发明申请
    Rubber composition for electromagnetic wave absorber and electromagnetic wave absorbing sheet 审中-公开
    电磁波吸收器和电磁波吸收片用橡胶组合物

    公开(公告)号:US20070229346A1

    公开(公告)日:2007-10-04

    申请号:US11802971

    申请日:2007-05-29

    申请人: Osamu Okada

    发明人: Osamu Okada

    IPC分类号: H01Q17/00

    摘要: This invention provides a rubber composition and an electromagnetic wave absorbing sheet that can realize excellent electromagnetic wave absorbance properties while only having a small thickness and is also excellent in flexibility. The rubber composition comprises 100 parts by weight of a rubber component such as natural rubber and 300 to 1500 parts by weight, preferably 500 to 1000 parts by weight, of carbonyl iron. The incorporation of a predetermined amount of carbonyl iron in the rubber component can realize excellent electromagnetic wave absorbance properties, whereby the thickness of the electromagnetic wave absorbing sheet for providing a necessary electromagnetic wave absorbance amount can be reduced. The rubber composition comprising carbonyl iron incorporated together with the rubber component has low hardness, and is also excellent in flexibility. Accordingly, the rubber composition has good processability, is less likely to break, and is also excellent in durability. The rubber component may contain not less than 5 parts by weight of a weather-resistant rubber in 100 parts by weight of the rubber component and further may contain 1 to 10 parts by weight of carbon black.

    摘要翻译: 本发明提供一种橡胶组合物和电磁波吸收片,其可以实现优异的电磁波吸收特性,同时仅具有较小的厚度并且柔性也优异。 橡胶组合物包含100重量份的橡胶组分如天然橡胶和300至1500重量份,优选500至1000重量份的羰基铁。 在橡胶组分中加入预定量的羰基铁可以实现优异的电磁波吸收性能,从而可以降低用于提供所需电磁波吸收量的电磁波吸收片的厚度。 包含与橡胶组分一起的羰基铁的橡胶组合物具有低硬度,并且柔软性也优异。 因此,橡胶组合物具有良好的加工性,不太可能破裂,并且耐久性也优异。 橡胶组分可以在100重量份的橡胶组分中含有不少于5重量份的耐候橡胶,并且还可以含有1至10重量份的炭黑。