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1. 发明专利

JPH02162298A SOLIDIFICATION OF WASTE 失效
公开(公告)号：JPH02162298A
公开(公告)日：1990-06-21
申请号：JP31641388
申请日：1988-12-16
申请人： HITACHI LTD , HESCO
发明人： IZUMIDA TATSUO , NISHI TAKASHI , BABA TSUTOMU , CHINO KOICHI , KIUCHI YOSHIMASA , TSUCHIYA HIROYUKI
IPC分类号： G21F9/16 , G21F9/00
摘要： PURPOSE:To make it unnecessary to accelerate a hardening speed by adding a cement typed hardening agent and to obtain a low cost and high safety solidified body, by using an inorganic water absorbent of which absorption speed is greater than a dissolving speed, in a paste, of a water soluble organic substances. CONSTITUTION:A condensed waste liquid 1 is fed to a dryer mill 2, where inorganic substances such as a sodium nitrate are dried and milled, and an pelletized by a pelletizer 3 as a next processing stage. A constant amount of pellets 4 is fed to a solidifying bin 7 by a measuring feeder 6 of pellets after a temporary storage in a pellet receiver 5. Constant amounts of a water setting hardener 8, an inorganic water absorbent 9 and water 10 are fed to a kneader 15 through tanks 11 to 13 and measuring feeders 14, respectively, and a paste 16 to be solidified, is produced by a mixing vane 17. The paste 16 is injected into the bin 7 which is filled with the pellets, through a valve 13, to fill out spaces among the pellets. A solidified body 18 is produced by statically placing and curing the bin 7. When the controlling of the paste 16 temperature is required, a heat exchanger 12 placed at the kneader 15, is operated.

2. 发明专利

JP2003084091A Spent fuel control system 审中-公开
标题翻译：燃油控制系统
公开(公告)号：JP2003084091A
公开(公告)日：2003-03-19
申请号：JP2001278142
申请日：2001-09-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ODA MASASHI , KUMAGAI NAOKI , NISHI TAKASHI , SHIMIZU HITOSHI
IPC分类号： G21C19/06
摘要： PROBLEM TO BE SOLVED: To properly cope with inspection by the regulating authorities, and information disclosure to a self-governing community and/or general publics, when a spent fuel is controlled in a storage center installed outside a lot of a nuclear power plant.
SOLUTION: This control system is provided with spent fuel generation sites A, B having a power generation facility where the spent fuel is generated, a storage facility C for receiving the spent fuel from the spent fuel generation sites A, B to be stored, and the Internet 16 for connecting the spent fuel generation sites A, B and the storage facility C each other. In the storage facility C, when fuel information about the spent fuel generated in the spent fuel generation sites A, B is input via the Internet 16, the fuel information is received to be stored, the received fuel information is added to the kinds and an amount of spent fuel under the storage to be totalized, and a totalized result is exhibited via the Internet when required from the spent fuel generation sites A, B, a terminal of the self-governing community, or a terminal of the general publics.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：当在安装在许多核电厂外的储存中心控制乏燃料时，妥善应对监管机构的检查和向自治团体和/或一般公众提供信息披露。解决方案：该控制系统配备有产生废燃料的发电设备的乏燃料发生位置A，B，用于从待存储的乏燃料生成位置A，B接收废燃料的储存设备C，以及用于将废燃料产生位置A，B和存储设备C彼此连接的因特网16。在存储设备C中，当经由因特网16输入关于在乏燃料产生位置A，B中产生的乏燃料的燃料信息时，接收要存储的燃料信息，将接收到的燃料信息添加到种类和待储存的乏燃料量将被总计，并且在需要时从废燃料发生站点A，B，自治社区的终端或一般公众的终端，通过因特网显示累计结果。

3. 发明专利

JP2002221593A METHOD FOR DISPOSAL OF RADIOACTIVE WASTE 失效
公开(公告)号：JP2002221593A
公开(公告)日：2002-08-09
申请号：JP2001016498
申请日：2001-01-25
申请人： HITACHI LTD
发明人： KONDO TAKEYUKI , NISHI TAKASHI , MATSUO TOSHIAKI , IZUMIDA TATSUO
IPC分类号： G21C19/46 , B09B3/00 , G21F9/06 , G21F9/16
摘要： PROBLEM TO BE SOLVED: To provide a method for disposal of sodium nitrate capable of reducing elution of a radioactive nuclide even when a waste is buriedly disposed to contact with groundwater, and capable of reducing volatility of the radioactive nuclide in denitration and vitrification. SOLUTION: The sodium nitrate waste in a storage vessel 1, a reductant in a storage vessel 2, and a vitrifying agent in a storage vessel 3 are supplied to a reaction vessel 4. An inside of the reaction vessel 4 is heated to fuse sodium nitrate, and the sodium nitrate waste and the reductant are mixed by a stirrer 5. Stirring is continued to denitrate substances in the reaction vessel 4 by chemical reaction. A fused mixture in the reaction vessel 4 is heated upto about 600-1200 deg.C at the point of time when the denitration is finished, so as to conduct vitrification. The vitrified mixture is cooled and solidified in the reaction vessel after the vitrification is finished, and converyed out together with the reaction vessel 4 from a solidifying apparatus 15 using a vessel conveying-in device 8.

4. 发明专利

JP2002162497A METHOD AND APPARATUS FOR TREATING RADIOACTIVE WASTE LIQUID 失效
公开(公告)号：JP2002162497A
公开(公告)日：2002-06-07
申请号：JP2000356452
申请日：2000-11-22
申请人： HITACHI LTD
发明人： NISHI TAKASHI , MATSUO TOSHIAKI , YUKITA ATSUSHI , HIRAYAMA SATOSHI
IPC分类号： G21F9/06 , C02F1/32 , C02F1/58 , C02F1/72 , C02F1/78 , G21F9/22 , G21F9/28
摘要： PROBLEM TO BE SOLVED: To make the entire facility compact by decreasing the required tank volume and the number of the tanks, and to reduce foaming at ozone aeration. SOLUTION: The method for treating the radioactive waste liquid comprises collecting the radioactive waste liquid, containing an organic compound in a collection tank 12, injecting ozone-containing gas or hydrogen peroxide for aeration into the waste liquid in the collection tank 12 or via a circulation system 30 connected to the collection tank 12, discharging the waste liquid in which the organic compound is decomposed by the injection, introducing the discharged waste liquid to a filter 18, directly or after temporarily introducing it into a holding tank, and filtering floating solids in the waste liquid. At least two operations among the collecting operation to the collection tank 12, the discharging operation of the waste liquid and the filtering operation of the solids, are carried out at the same time, in at least a part of the time period.

5. 发明专利

JP2001318190A PROCESSING METHOD AND DEVICE FOR RADIOACTIVE WASHING LIQUID WASTE 失效
公开(公告)号：JP2001318190A
公开(公告)日：2001-11-16
申请号：JP2001103298
申请日：2001-04-02
申请人： HITACHI LTD
发明人： MATSUO TOSHIAKI , NISHI TAKASHI , MATSUDA MASAMI , YUKITA ATSUSHI
IPC分类号： G21F9/06 , C02F1/28 , C02F1/32 , G21F9/10 , G21F9/12
摘要： PROBLEM TO BE SOLVED: To prevent the lowering of liquid waste processing speed and sufficiently remove COD components by providing a procedure for separating and removing suspended particle from washing liquid waste. SOLUTION: Washing liquid waste stored in a storage tank 14 in advance is supplied to a waste tank 1 by a liquid waste supply pump 5 and heated with a liquid waste heater 6 to be 60 deg.C. Then a part of whole activated carbon is added from an activated carbon supplier 2. At this moment, muddiness of the liquid waste due to the suspended particle is measured with a liquid waste transparency meter 10 and the addition of the activated carbon is stopped when the suspended particle component is condensed and adsorbed by the activated carbon and the muddiness disappears. Then the liquid waste tank 1 is cooled, the remaining activated carbon is added by the carbon supplier 2. When the concentration of the soluble organic components lowers to a specific concentration, the addition of the activated carbon is stopped. A valve 4 is opened to flow the liquid waste to a filter device 7 and the activated carbon remaining on paper filter or cloth filter as residue is processed as solid waste.

6. 发明专利

JP2001242293A METHOD FOR INCINERATION TREATMENT OF RADIOACTIVE GRAPHITE WASTE 失效
公开(公告)号：JP2001242293A
公开(公告)日：2001-09-07
申请号：JP2000051825
申请日：2000-02-28
申请人： HITACHI LTD
发明人： UEDA KIYOTAKA , MATSUDA MASAMI , NISHI TAKASHI , KONDO TAKEYUKI
IPC分类号： G21F9/32 , B09B3/00 , F23G5/10 , F23G7/00 , F23J1/00 , G21F9/30
摘要： PROBLEM TO BE SOLVED: To provide an incineration system dispensing with pre-treatment such as crushing treatment of a graphite block, and capable of melting and stabilizing incineration ash in an incinerator. SOLUTION: An incineration device 100 is provided with a furnace body 1 with a charging port 2, an air blow-in port 3 and a residue discharge port 4; and an electromagnetic induction coil 5 provided on the side wall outer surface of the furnace body 1. Graphite waste 10 is charged from the charging port 2, and air/oxygen is charged from the air blow-in port to incinerate and dispose of the graphite waste. Incineration ash after incineration is filled in the furnace body 1, and in this state, radioactive graphite waste is charged. In a state of air supply cut-off, induction heating is performed by the electromagnetic induction coil with the radioactive graphite waste as a heating body. The temperature in the furnace body rises, and the incineration ash melts. The molten incineration ash is discharged from the residue discharge port and made into a glass solidified body.

7. 发明专利

JP2001124895A MELTING DEVICE 失效
公开(公告)号：JP2001124895A
公开(公告)日：2001-05-11
申请号：JP30200199
申请日：1999-10-25
申请人： HITACHI LTD
发明人： KONDO TAKEYUKI , NISHI TAKASHI , MATSUO TOSHIAKI , MATSUDA MASAMI , UEDA KIYOTAKA
IPC分类号： G21F9/30
摘要： PROBLEM TO BE SOLVED: To provide a melting device allowing high-precision measurement and control of a temperature in a reactor, without the leakage of radioactive material to the outside of the melting device. SOLUTION: This melting device has a melting tank for melting a material to be melted, a window capable of assuring air-tightness in the melting tank, a pipe with one end closed installed inside the melting tank and a radiation thermometer provided outside the melting tank for measuring the temperature of the inner surface of the pipe with one end closed through the window.

8. 发明专利

JP2000162389A MELTING DEVICE 失效
公开(公告)号：JP2000162389A
公开(公告)日：2000-06-16
申请号：JP33528798
申请日：1998-11-26
申请人： HITACHI LTD
发明人： KONDO TAKEYUKI , NISHI TAKASHI , MATSUO TOSHIAKI , MATSUDA MASAMI , UEDA KIYOTAKA
IPC分类号： G21F9/30 , F27B14/06 , F27B14/14 , F27D1/00 , F27D1/04
摘要： PROBLEM TO BE SOLVED: To provide a high frequency continuous melting furnace of conductive heater charging type capable of attaining extending life of melting tank bottom refractory and reducing load of repairing the furnace. SOLUTION: This melting device is provided at the lower part with an exhaust piece 5 for molten waste after heated and melted passing through a conductive heater 1 to flow out, has a refractory inner layer 6 not combined in one with the melting tank 2 at the bottom of the melting tank. The refractory inner layer 6 of the melting tank bottom is placed at the lower position than the lower end of an electromagnetic coil 3. The refractory inner layer 6 is desired to be made of ZrB2 or Mo-ZrO2.

9. 发明专利

JPH11306191A METHOD AND SYSTEM FOR LAW RETRIEVAL 失效
公开(公告)号：JPH11306191A
公开(公告)日：1999-11-05
申请号：JP11174198
申请日：1998-04-22
申请人： HITACHI LTD
发明人： FUNABASHI KIYOMI , NISHI TAKASHI , NOSHITA KENJI , KONDO MASAYOSHI , TAKAHASHI MASANORI , HASHIMOTO ATSUSHI , ICHIKAWA YOSHIAKI
IPC分类号： G06F17/30 , G06Q50/00 , G06Q50/10 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To advance environmental countermeasures, etc., by providing a system which can easily retrieve the laws applied to products. SOLUTION: Part or the whole of the name of a product to be retrieved is inputted from the input device 113 of a user 110. A retrieving process part 101 on a server 100 performs retrieval from an article name file 102 according to the inputted article name to retrieve plural candiclates for the formal articles and displays the result on a display device 112. The retrieving process part 101 performs retrieval from an article name and constituent substance name file 103 according to the formal article name to extract its constituent substance names, converts the constituent substance names to law entry substance names by using the file 103, and retrieves an application law by using a file 104. Consequently, the application law relating to environment preservation, harmful substance control, etc., can easily be extracted by the input of part of the article name.

10. 发明专利

JPH11218600A DEVICE FOR MELTING TREATMENT 失效
公开(公告)号：JPH11218600A
公开(公告)日：1999-08-10
申请号：JP2067698
申请日：1998-02-02
申请人： HITACHI LTD
发明人： UEDA KIYOTAKA , MATSUDA MASAMI , NISHI TAKASHI , MATSUO TOSHIAKI , KONDO TAKEYUKI
IPC分类号： G21F9/30
摘要： PROBLEM TO BE SOLVED: To improve the durability of the inner wall of a furnace body and provide a device for melting treatment that has a high throughput per supplied electric energy in a high-frequency electromagnetic induction heating method where the inside of the furnace is filled with conductive heating elements. SOLUTION: The melting treatment device is equipped with a furnace body 1 that has an upper charge port 30 and a lower tapping port 4, conductive heating elements 5 filled inside the body 1, a wall made of a refractory material that is placed on the inner face of the side wall of the furnace body 1 and a high-frequency electromagnetic induction coil 3. In the coil 3 placed on the outer face of the side wall, heat is generated by heating conductive heating elements 5 through high-frequency electromagnetic induction heating. In the device, an object 6 to be melted supplied from the upper input port 30 of the main furnace body 1 is melted and is discharged outside as melt 11 from the lower tapping port 4. Cylindrical bodies 20 made of a dense fire-proof material that has an apparent porosity of 10% or lower are provided inside the wall made of the fire-proof material to restrain the contact of the melt 11 with the inner wall of the reactor body.

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