专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH01176996A DEVICE FOR CUTTING AND DISASSEMBLING FUEL ASSEMBLY OR THE LIKE 失效
公开(公告)号：JPH01176996A
公开(公告)日：1989-07-13
申请号：JP4288
申请日：1988-01-04
申请人： TOSHIBA CORP , NIPPON ATOMIC IND GROUP CO
发明人： FURUMURA SHIRO , HIOKI HIDEAKI , KATO HIROAKI
IPC分类号： G21C19/37 , G21C19/36
摘要： PURPOSE:To improve efficiency by providing a gripping mechanism to grip a material to be cut in different two positions and a cutting mechanism to cut said material between the two pinching positions to supporting arms thereby inserting and removing the cutting mechanism between the pinching positions. CONSTITUTION:The gripping mechanism 32 for gripping a fuel assembly 31 and the cutting mechanism 33 for cutting the assembly 31 are provided to the free ends of the supporting arms 34, 35 of the title device 30. The mechanism 33 is constituted by housing a disk-shaped grinding wheel cutter 49 freely rotatably in a cutter bar 48 fixed to the free end of the arm 35. The device 30 is moved between a disassembly working tower 37 and a disassembled waste housing container 38 by a rotational moving mechanism provided to the base part of the arms 34, 35 and the cutter 49 is pressed to the assembly 31 gripped by the gripers 43 of the mechanism 32 while said cutter is kept rotated between the upper and lower gripping positions, by which the assembly is cut. The cutting is, therefore, efficiently executed.

2. 发明专利

JPS6484200A TREATMENT SYSTEM FOR RADIOACTIVE WASTE 失效
公开(公告)号：JPS6484200A
公开(公告)日：1989-03-29
申请号：JP24320487
申请日：1987-09-28
申请人： TOSHIBA CORP , NIPPON ATOMIC IND GROUP CO
发明人： FURUMURA SHIRO , HIOKI HIDEAKI
IPC分类号： G21F9/30 , G21F9/28
摘要： PURPOSE:To reduce the cost of disposition by respectively discriminating and disposing waste of a high radioactivity level, waste of an extremely low level, metal waste decontaminated down to a prescribed level, and concrete waste. CONSTITUTION:The radioactive waste accepted in an acceptance treatment stage 1 is discriminated to the radioactive metals and the concrete waste. The metal waste is subjected to measurement and discrimination of the radioactivity level and the kinds of radioactivity in a measurement processing stage 2. The metal waste discriminated to general waste is disposed 5. Of the waste discriminated as the radioactive metal waste, the decontaminatable waste is sent to a decontamination treatment stage 3 and the nondecontaminatable waste is sent to a container packing stage 6 or simple disposition 8. The waste sent to the stage 3 is subjected to the decontamination treatment and is sent to the measurement processing stage 4 where the radioactivity level thereof is again measured. As a result, the waste decontaminated down to the prescribed radioactivity level is disposed 5. The waste failing to be decontaminated down to the prescribed level is sent to the stage 6 and is disposed 7. The waste of the extremely low level is disposed 8.

3. 发明专利

JPH02171694A DECONTAMINATION SYSTEM OF RADIOACTIVE WASTE 失效
公开(公告)号：JPH02171694A
公开(公告)日：1990-07-03
申请号：JP32634588
申请日：1988-12-26
申请人： TOSHIBA CORP , NIPPON ATOMIC IND GROUP CO
发明人： FURUMURA SHIRO , HIOKI HIDEAKI
IPC分类号： G21F9/28 , G21F9/00
摘要： PURPOSE:To wash decontamination wastes efficiently by combining a pretreatment process that treats surfaces other than contaminated pars of radioactive wastes prior to an actual decontamination work, a decontamination process of contaminated metal surfaces and a washing process of decontaminated wastes after a decontamination. CONSTITUTION:For a case of pipings, for example, a high molecular material is fused on an outer surfaces by using a welding spray. A radioactive waste which finishes a pretreatment process 2 is put into a decontamination device to be completely decontaminated. In this case, a contaminated surface of contaminated matters 19 is dissolved and removed by just a touch of the contaminated surface of the contaminated matter 19 with an electrolyte liquid 14, and consequently is decontaminated to a level at which the decontaminated matter can be handled as same as ordinary industrial wastes. Radioactive wastes 27 which finish a decontamination treatment are sorted according to shapes of the wastes and then are washed down. The wastes which have been washed down to an enough level by suitable washing methods to their shapes, are measured their radioactivity levels and the wastes which is decontaminated to a level below the background level, is reused as an effective utilization of natural resources, considering to be an ordinary industrial waste 32.

4. 发明专利

JPH02171698A TREATMENT SYSTEM OF RADIOACTIVE WASTE 失效
公开(公告)号：JPH02171698A
公开(公告)日：1990-07-03
申请号：JP32634488
申请日：1988-12-26
申请人： TOSHIBA CORP , NIPPON ATOMIC IND GROUP CO
发明人： FURUMURA SHIRO , HIOKI HIDEAKI
IPC分类号： G21F9/30 , G21F9/00 , G21F9/36
摘要： PURPOSE:to diminish a produced amount of a radioactive waste substantially by providing a process to obtain a grouting material which is the radioactive waste added with a cement material and the like, and another process to measure a radioactivity level of the said grouting material. CONSTITUTION:Concerning about radioactive wastes such as an unsolved portion separated by a treatment of a decontamination liquid waste, its radioactivity level is measured and evaluated. To the radioactive waste evaluated its radioactivity level, a cement and the like are added, mixed and then a production 16 of a grouting material to stabilize activated metals, contaminated metals, radioactive concrete and so on, is conducted. On the other hand, received radioactive wastes are treated according to their material characteristics, their radioactive situations and their radioactive levels. Packaged 5 radioactive wastes are required to be conducted a stabilization and solidification treatments 11 for the wastes not so as to move around in the package during transportation, and the said grouting material can be used for the stabilization. For the stabilized and solidified radioactive wastes, a package inspection is applied and thereafter the wastes are transported to a storage facility or a disposal site according to their radioactivity levels.

5. 发明专利

JPS6484197A DECONTAMINATION SYSTEM FOR RADIOACTIVE WASTE 失效
公开(公告)号：JPS6484197A
公开(公告)日：1989-03-29
申请号：JP24320287
申请日：1987-09-28
申请人： TOSHIBA CORP , NIPPON ATOMIC IND GROUP CO
发明人： FURUMURA SHIRO , HIOKI HIDEAKI
IPC分类号： G21F9/28 , G21F9/00 , G21F9/30
摘要： PURPOSE:To enable efficient and thorough decontamination by decontaminating waste failing to be decontaminated down to a prescribed level further by a regular decontami nation consisting of at least two kinds of different decontamination methods according to shapes. CONSTITUTION:The radioactive contaminating metal waste is taken out of a container by a waste accepting part 1 and is subjected to a predecontamination 2 by which clads, etc., are removed. The waste taken out of the predecontamination 2 is cleaned in a rinse tank 3 and is subjected to the measurement of the radioactivity level by a measuring and discriminating system 4, by which the waste is discriminated to the decontaminated waste 11 and the waste failing to be decontaminated. The waste failing to be decontaminated is discriminated in shapes to an electrolytic polishing decontamination 6 and an oxidation-reduction decontamination 7 according to the shapes thereof. The waste taken out of the decontaminations 6, 7 is further subjected to cleaning of the decontaminating agent, etc., in a rinse tank 8 and thereafter, the radioactivity level thereof is measured by the measuring and discriminating system 9, by which the waste is discriminated to the decontaminated waste 12 and the waste failing to be decontaminated. The waste failing to be decontaminated down to the prescribed radioactivity level is again subjected to the regular decontamination in the regular decontamination 5.

6. 发明专利

JPS6484198A DECONTAMINATION SYSTEM FOR RADIOACTIVE WASTE 失效
公开(公告)号：JPS6484198A
公开(公告)日：1989-03-29
申请号：JP24320387
申请日：1987-09-28
申请人： TOSHIBA CORP , NIPPON ATOMIC IND GROUP CO
发明人： FURUMURA SHIRO , HIOKI HIDEAKI
IPC分类号： G21F9/28 , G21F9/00
摘要： PURPOSE:To enable efficient and thorough decontamination by providing a device for recognizing the shapes of radioactive contaminating metal waste, instrument for measuring radioactivity distribution, device for removing the contaminating points of the waste, rinse tank, and instrument for measuring radioactivity. CONSTITUTION:The radioactive contaminating metal waste is taken out of a container in a waste accepting part 1 and the shapes thereof are measured by the waste shape recognizing device 2. The distribution of the radioactivity is measured by the radioactivity distribution measuring instrument 3. The contaminating points of the waste having the spotty contaminating points are concentrically decontaminated by a decontamination device 4 after the recognition of the radioactivity distribution. The waste which the decontamination is finished is then subjected to cleaning of the decontaminating agent, etc., by the rinse tank 5 and the radioactivity level thereof is measured by the radioactivity measuring instrument 6. This waste is discriminated to the waste decontaminated down to the prescribed level and the waste failing to be decontaminated. The waste failing to be decontaminated down to the prescribed radioactivity level is again subjected to the decontamination.

7. 发明专利

JPS6484196A DECONTAMINATION SYSTEM FOR RADIOACTIVE WASTE 失效
公开(公告)号：JPS6484196A
公开(公告)日：1989-03-29
申请号：JP24320187
申请日：1987-09-28
申请人： TOSHIBA CORP , NIPPON ATOMIC IND GROUP CO
发明人： FURUMURA SHIRO , HIOKI HIDEAKI
IPC分类号： G21F9/28 , G21F9/00 , G21F9/30
摘要： PURPOSE:To improve the reliability of decontamination by providing a predecontamination for removing deposited clads, etc., rinse tanks for cleaning waste, radioactivity level measuring and discriminating system, material discriminating system, and regular decontaminations. CONSTITUTION:The radioactive contaminating metal waste is taken out of a container in a waste accepting section 1 and is subjected to the predecontamination 2, by which the clads, etc., are stripped. The clads are removed together with fluid. The waste taken out of the predecontamination 2 is cleaned in the rinse tank 3 and is subjected to the measurement of the radioactivity level by the measuring and discriminating system 4, by which the waste is discriminated to the decontaminated waste 9 and the waste 9 failing to be decontaminated. The waste failing to be decontaminated is identified of the material by the material discriminating system 5. Carbon steels and stainless steels are respective discriminated to the regular decontaminations 6a, 6b. The waste taken out of the regular decontaminations 6a, 6b are transferred respectively into the rinse tanks 7a, 7b where the decontaminating agent, etc., are cleaned; thereafter, the radioactivity level is measured by the measuring and discriminating system 8. The waste which is not decontaminated down to the prescribed radioactivity level by the regular decontamination is again subjected to the regular decontamination in the regular decontaminations 6b, 6b.

8. 发明专利

JPS6275392A SECONDARY COOLING SYSTEM OF FAST BREEDER REACTOR 失效
公开(公告)号：JPS6275392A
公开(公告)日：1987-04-07
申请号：JP21699785
申请日：1985-09-30
申请人： TOSHIBA CORP , NIPPON ATOMIC IND GROUP CO
发明人： FURUMURA SHIRO , OSHIMA IWAO
IPC分类号： G21D3/08

9. 发明专利

JPH0244298A RADIOACTIVE WASTE TREATMENT SYSTEM 失效
公开(公告)号：JPH0244298A
公开(公告)日：1990-02-14
申请号：JP19341788
申请日：1988-08-04
申请人： TOSHIBA CORP , NIPPON ATOMIC IND GROUP CO
发明人： FURUMURA SHIRO , HIOKI HIDEAKI
IPC分类号： G21F9/30
摘要： PURPOSE:To treat radioactive metallic wastes rationally and effectively by measuring radioactive levels and kinds of radioactivities and by recognizing shapes of the wastes for the waste taken out from containers after transferring the wastes received, to a barge to a part lower than a draft water level of the barge. CONSTITUTION:Radioactive metallic wastes are transferred to a treatment part 107 placed lower than a draft level of a barge from a bring-in hatch 110 located on a deck of the barge. The radioactive metallic wastes received to the barge are transferred to a receiving process 1 where the receiving process such as reading out of informations from wate generating sites, taking out of the waste from transfer containers of the wastes and refilling the wastes to another container are conducted. Then the wastes are transferred by a crane 106 placed on the barge, for a measuring treatment process 2, where the wastes are measured their radioactive levels and kinds of their radioactivities. Subsequently, at the process 2, judgement to decontaminate the wastes or not, is performed based on measured results and the informations from the waste generating sites and then the wastes which are possible to be decontaminated are transferred to a decontamination treatment process 3 by the in-barge crane 106.

10. 发明专利

JPH0244297A TREATMENT SYSTEM OF RADIOACTIVE WASTE 失效
公开(公告)号：JPH0244297A
公开(公告)日：1990-02-14
申请号：JP19341888
申请日：1988-08-04
申请人： TOSHIBA CORP , NIPPON ATOMIC IND GROUP CO
发明人： FURUMURA SHIRO , HIOKI HIDEAKI
IPC分类号： G21F9/30 , G21F9/00
摘要： PURPOSE:To decrease a generating volume of radioactive wastes by preparing a second process in which aggregates are made through crushing radioactive concrete and a third process in which a grout material is made by adding cement water or the like to the aggregates obtained through the second process. CONSTITUTION:Radioactive concrete is finely crushed by a crusher and etc. after measurement of its radioactivity as the first process and is processed to aggregates for regenerated concrete. A grout material 10 processed in this second process and the like is poured into a container as a stabilizing material of radioactive metallic wastes contained in the container by an injector 11 and the like in advance and the aforementioned wastes are stabilized and solidified by the grout material. As a result, around 2,000 tons of radioactive concrete which should have been treated as a radioactive material conventionally, can be completely used for stabilizing and solidification treatment (grout material) of metallic wastes.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式