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1. 发明专利

JP2000266895A WASHING DEVICE OF MIXER FOR SOLIDIFICATION MATERIAL FOR SOLIDIFYING RADIOACTIVE WASTE 失效
公开(公告)号：JP2000266895A
公开(公告)日：2000-09-29
申请号：JP7197199
申请日：1999-03-17
申请人： MITSUBISHI MATERIALS CORP
发明人： TANAKA RYOJI , SAITO NARIMASA , ITO ISAO
IPC分类号： B01F15/00 , G21F9/28 , G21F9/30
摘要： PROBLEM TO BE SOLVED: To almost uniformly wash inside of a mixer by supplying a spray hole with washing water through a washing water supply pipe in a state a stirring vane is rotated and discharging washing water in spray from the spray hole by the use of the hydraulic pressure of washing water and centrifugal force due to rotation of washing shaft. SOLUTION: Water, cement and aggregate are stored in a mixing tank 12, a rotation shaft 14 is inserted from below the mixing tank into the mixing tank by penetrating the bottom wall 23b of the mixing tank and the rotation shaft is rotationally driven by a motor 13. Stirring vanes are radially fixed to the rotation shaft inserted in the mixing tank and with these stirring vanes, water, cement and aggregate are stirred and solidification material is produced. The upper end of the washing shaft 42 placed in one with the rotation shaft extends to near the upper end of the mixing tank and a plurality of spray holes 42d are placed in the upper part of the washing shaft above the solidifying material. The lower end of washing water supply pipe 43 inserted from the upper surface of the mixing tank into the tank is held rotatably at the upper end of the washing shaft and is constituted so as to supply the spray holes with washing water.

2. 发明专利

JPH107187A FINE AGGREGATE STORAGE SILO WITH DEHYDRATOR 失效
公开(公告)号：JPH107187A
公开(公告)日：1998-01-13
申请号：JP16395596
申请日：1996-06-25
申请人： MITSUBISHI MATERIALS CORP
发明人： IKEDA KAZUKI , YOSHIDA NOBORU , TANAKA RYOJI
IPC分类号： B65D88/74 , B65D90/34
摘要： PROBLEM TO BE SOLVED: To evenly dehydrate the water content in fine aggregate to increase the operational efficiency and stabilize the physical properties of concrete or mortar products. SOLUTION: A silo 11 is constituted in that a plurality of holes 13b or slits are formed at the bottom 13 of a cylindrical body 12 with a bottom which is tapered off as it goes to the bottom, and the adhesive moisture of fine aggregate held in the cylindrical body 12 is discharged from the holes or the slits owing to the its own gravitational weight. The diameter of the hole or the width of a slit is 10-40mm. Larger materials than the diameter or the width are charged in the cylindrical body 12. It is preferable that a discharge damper 14 for the fine aggregate is installed at the nearby position of the upper part of the bottom 13. And further, it is preferable that the bottom of the cylindrical body 13 is shaped to form a two-row through type body 13a with a W-shaped section and the damper 14 is installed at the upper part of the trough type body at the central part of the bottom. The fine aggregate is prevented from jamming on the contact face with the fine aggregate by putting the charging materials with a larger diameter therein.

3. 发明专利

JPH09230096A SOLIDIFYING MATERIAL KNEADING DEVICE FOR SOLIDIFYING RADIOACTIVE WASTE 失效
公开(公告)号：JPH09230096A
公开(公告)日：1997-09-05
申请号：JP3186096
申请日：1996-02-20
申请人： MITSUBISHI MATERIALS CORP
发明人： TANAKA RYOJI , YOSHIDA NOBORU , OKADA KENICHI
IPC分类号： G21F9/16 , B01F7/16 , B01F11/00 , G21F9/30
摘要： PROBLEM TO BE SOLVED: To disperse solidifying material uniformly, efficiently, and in a relative short time. SOLUTION: Water 13, cement 12, and fine aggregate 11 such as sand are supplied to a kneading tank 14, and a rotary shaft 17 provided on the lower part of the kneading tank is rotationally driven by a motor 16. Water, cement, and fine aggregate are stirred by a plurality of first stirring blades 21 radially fixed to the rotary shaft. A plurality of first stays 31 are radially fixed to the rotary shaft spacedly from the first stirring blades by a prescribed space, and a plurality of second stirring blades 22 extending in the axial direction of the rotary shaft are respectively fixed to the extreme ends of these first stays. A receiving dish 32 is mounted on the upper part of the kneading tank through elastic bodies 29 so as to be positioned over the first and second stirring blades, and this receiving dish is formed with many small holes 32a. A vibrator 33 vibrating the receiving dish is fitted to the receiving dish.

4. 发明专利

JPH05240998A 失效
公开(公告)号：JPH05240998A
公开(公告)日：1993-09-21
申请号：JP7635092
申请日：1992-02-27
申请人： MITSUBISHI MATERIALS CORP
发明人： TANAKA RYOJI , UEDA SHINZO , SUZUKI RINPEI , NARITA YASUSHI
IPC分类号： G21F9/30
摘要： PURPOSE:To confine a plurality of radioactive nucleides simultaneously and precisely by solidifying in a vessel a low level radioactive solid waste including radioactive positive ion elements and transuranium elements. CONSTITUTION:A low level radioactive solid waste including radioactive positive ion elements and transuranium elements is solidified in a vessel using cement components. These cement components include cement, sand and water and the sand inclusion fraction to the total of cement and sand is 85 to 95wt.%.

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