公开(公告)号：EP0280426A3

公开(公告)日：1990-05-09

申请号：EP88300990.4

申请日：1988-02-05

申请人： NGK INSULATORS, LTD. ,  CHICHIBU CEMENT CO., LTD.

发明人： Kanagawa, Yutaka ,  Ishizaki, Kanjiro Related Products Division ,  Ozawa, Mitsuzo Ozawa Concrete Industries, Co. Ltd.

IPC分类号： G21F9/34

CPC分类号： G21F9/008 ,  G21F9/307 ,  Y10S422/903

摘要： A solidification processing apparatus for radioactive waste materials comprises a tank (2) for a solidifying agent, a waste material vessel (4) connected to the tank (2), pouring control unit (6,7,19) for controlling pouring of the solidifying agent into the vessel, and a heating and curing chamber (12) for heating the vessel (14) by indirect heating unit after pouring the solidifying agent onto the waste materials in the vessel to polymerize and set the solidifying agent, thereby solidifying the radioactive waste materials. With this arrangement, the solidifying agent capable of good impregnation is poured into the vessel (4) filled with radioactive waste materials, and the amount poured is controlled by the pouring control unit (6,7,19). Use of indirect heating avoids risk of combustion if the solidifying agent is combustible. The solidifying agent can be polymerized and set in a relatively short time, and the radioactive waste materials can be stably solidified.

公开(公告)号：EP0323526A1

公开(公告)日：1989-07-12

申请号：EP88906088.0

申请日：1988-07-13

申请人： CHICHIBU CEMENT CO., LTD. ,  INAX CORPORATION ,  ILB CO., LTD.

发明人： YOSHIDA, Kinoto Chichibu Cement Co., Ltd. ,  FUJII, Morizumi Inax Corporation ,  TSUDA, Tokihiro ,  SUDA, Shigeo Chichibu Cement Co., Ltd. ,  KODAMA, Osamu Chichibu Cement Co., Ltd. ,  KUROE, Kazuro Chichibu Cement Co., Ltd. ,  TANIKAWA, Takumi ,  NISHIMURA, Michihiko ,  MUNAKATA, Hideyuki

IPC分类号： B28B11 ,  E01C5

CPC分类号： E01C5/00 ,  B28B11/00

摘要： The fracture-free paving block (1) comprises a cement block substrate (1-1) and a top solid layer (1-2), and is charac­ terized in that the top layer is selected from a cured cement mortar layer and a tile-like layer firmly bonded to the substrate with cement mortar; the top layer is bonded to the block substrate with lateral margins (2) of 1 to 8 mm wide in horizontal distance (1₅) from the peripheral edges of the substrate; and vertical distance (1₆) from the surface of the top layer to the peripheral edge of the substrate is 5 to 50 mm. The method for producing the paving block (1) having a tile-like top lay­ er comprises applying adhesive cement mortar between the back of the top layer (1-2) and the upper surface of the sub­ strate (1-1); placing the top layer on the substrate with the above-mentioned margins (2) of the substrate surface; and ap­ plying vibration and/or pressurization between the top layer and substrate.

公开(公告)号：EP0246075A1

公开(公告)日：1987-11-19

申请号：EP87304225.3

申请日：1987-05-12

申请人： Chichibu Cement Co., Ltd.

发明人： Suzuki, Osamu ,  Ishizaki, Kanjiro ,  Asami, Akira ,  Kushida, Shizuko

IPC分类号： G21F5/00 ,  G21F9/22 ,  B65D51/16

CPC分类号： G21F9/22 ,  B65D51/1616 ,  G21F5/12

摘要： A pressure-regulating device for impact-resistant containers used for storage, transportation and disposal of hazardous waste materials, is herein disclosed, which comprises a vent fixed to the lid of said container to keep the gaseous phase pressure inside said container at a positive pressure of 50% or less of the pressure resistance of said container, the vent being columnar and made of an alumina-based sintered ceramic and having a porosity of 50% or less, a pore diameter range of 0.4 to 1.4 µ and a length (mm)/cross-sectional area (mm 2 ) ratio of 2 to 10.

摘要翻译： 对于用于储存，运输和处置有害废料的耐冲击容器，所述的压力调节装置是在光盘游离缺失，其包括固定到所述容器的盖的通气孔，以保持所述容器内部的气相压力保持在正压 的50％或更低，所述容器中，通气为柱状的耐压性而制成的（在氧化铝基烧结陶瓷和具有50％或更低的孔隙率，为0.4〜1.4微米的孔径范围和长度mm ）/截面积（mm <2>）的2比为第十